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HFA1405
September 1998 File Number 3604.5
Quad, 560MHz, Low Power, Video Operational Amplifier
The HFA1405 is a quad, high speed, low power current feedback amplifier built with Intersil's proprietary complementary bipolar UHF-1 process. These amplifiers deliver up to 560MHz bandwidth and 1700V/s slew rate, on only 58mW of quiescent power. They are specifically designed to meet the performance, power, and cost requirements of high volume video applications. The excellent gain flatness and differential gain/phase performance make these amplifiers well suited for component or composite video applications. Video performance is maintained even when driving a back terminated cable (RL = 150), and degrades only slightly when driving two back terminated cables (RL = 75). RGB applications will benefit from the high slew rates, and high full power bandwidth. The HFA1405 is a pin compatible, low power, high performance upgrade for the popular Intersil HA5025, and for the CLC414 and CLC415.
Features
* Low Supply Current . . . . . . . . . . . . . . . . . 5.8mA/Op Amp * High Input Impedance . . . . . . . . . . . . . . . . . . . . . . . 1M * Wide -3dB Bandwidth (AV = +2) . . . . . . . . . . . . . . 560MHz * Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . . . 1700V/s * Gain Flatness (to 50MHz) . . . . . . . . . . . . . . . . . . . . 0.03dB * Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02% * Differential Phase . . . . . . . . . . . . . . . . . . . . 0.03 Degrees * All Hostile Crosstalk (5MHz). . . . . . . . . . . . . . . . . . -60dB * Pin Compatible Upgrade to HA5025, CLC414, and CLC415
Applications
* Flash A/D Drivers * Professional Video Processing * Video Digitizing Boards/Systems
Ordering Information
PART NUMBER HFA1405IB HFA1405IP HA5025EVAL TEMP. RANGE (oC) -40 to 85 -40 to 85 PACKAGE 14 Ld SOIC 14 Ld PDIP PKG. NO. M14.15 E14.3
* Multimedia Systems * RGB Preamps * Medical Imaging * Hand Held and Miniaturized RF Equipment * Battery Powered Communications
High Speed Op Amp DIP Evaluation Board
Pinout
HFA1405 (PDIP, SOIC) TOP VIEW
OUT 1 1 -IN 1 2 +IN 1 3 V+ 4 +IN 2 5 -IN 2 6 OUT 2 7 + + 14 OUT 4
* High Speed Oscilloscopes and Analyzers
-
-
13 -IN 4 12 +IN 4 11 V10 +IN 3 9 -IN 3 8 OUT 3
+
+
-
-
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright (c) Intersil Corporation 1999
HFA1405
Absolute Maximum Ratings
TA = 25oC
Thermal Information
Thermal Resistance (Typical, Note 1) JA (oC/W) SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Maximum Junction Temperature (Die) . . . . . . . . . . . . . . . . . . . 175oC Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC (SOIC - Lead Tips Only)
Voltage Between V+ and V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11V DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VSUPPLY Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V Output Current (Note 2) . . . . . . . . . . . . . . . . .Short Circuit Protected 30mA Continuous 60mA 50% Duty Cycle ESD Rating Human Body Model (Per MIL-STD-883 Method 3015.7) . . . 600V
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES: 1. JA is measured with the component mounted on an evaluation PC board in free air. 2. Output is short circuit protected to ground. Brief short circuits to ground will not degrade reliability, however continuous (100% duty cycle) output current must not exceed 30mA for maximum reliability.
Electrical Specifications
VSUPPLY = 5V, AV = +1, RF = 510 , RL = 100 , Unless Otherwise Specified (NOTE 4) TEST LEVEL HFA1405IB (SOIC) TEMP. (oC) MIN TYP MAX HFA1405IP (PDIP) MIN TYP MAX UNITS
PARAMETER INPUT CHARACTERISTICS Input Offset Voltage
TEST CONDITIONS
A A
25 Full Full 25 85 -40 25 85 -40 25 Full Full 25 85 -40 25 85 -40 25 Full Full 25 85 -40
45 43 43 48 46 46 0.8 0.5 0.5 -
2 3 1 48 46 46 52 48 48 6 10 5 0.5 0.8 0.8 1.2 0.8 0.8 2 5 60 3 4 4
5 8 10 15 25 60 1 3 3 7.5 15 200 6 8 8
45 43 43 48 46 46 0.8 0.5 0.5 -
2 3 1 48 46 46 52 48 48 6 10 5 0.5 0.8 0.8 1.2 0.8 0.8 2 5 60 3 4 4
5 8 10 15 25 60 1 3 3 7.5 15 200 6 8 8
mV mV V/oC dB dB dB dB dB dB A A nA/oC A/V A/V A/V M M M A A nA/oC A/V A/V A/V
Average Input Offset Voltage Drift Input Offset Voltage Common-Mode Rejection Ratio VCM = 1.8V VCM = 1.8V VCM = 1.2V Input Offset Voltage Power Supply Rejection Ratio VPS = 1.8V VPS = 1.8V VPS = 1.2V Non-Inverting Input Bias Current
B A A A A A A A A
Non-Inverting Input Bias Current Drift Non-Inverting Input Bias Current Power Supply Sensitivity VPS = 1.8V VPS = 1.8V VPS = 1.2V Non-Inverting Input Resistance VCM = 1.8V VCM = 1.8V VCM = 1.2V Inverting Input Bias Current
B A A A A A A A A
Inverting Input Bias Current Drift Inverting Input Bias Current Common-Mode Sensitivity VCM = 1.8V VCM = 1.8V VCM = 1.2V
B A A A
2
HFA1405
Electrical Specifications
VSUPPLY = 5V, AV = +1, RF = 510 , RL = 100 , Unless Otherwise Specified (Continued) (NOTE 4) TEST LEVEL A A A C B A A f = 100kHz f = 100kHz f = 100kHz B B B HFA1405IB (SOIC) TEMP. (oC) 25 85 -40 25 25 25, 85 -40 25 25 25 MIN 1.8 1.2 TYP 2 4 4 60 1.4 2.4 1.7 3.5 2.5 20 MAX 5 8 8 HFA1405IP (PDIP) MIN 1.8 1.2 TYP 2 4 4 60 2.2 2.4 1.7 3.5 2.5 20 MAX 5 8 8 UNITS A/V A/V A/V pF V V nV/Hz pA/Hz pA/Hz
PARAMETER Inverting Input Bias Current Power Supply Sensitivity
TEST CONDITIONS VPS = 1.8V VPS = 1.8V VPS = 1.2V
Inverting Input Resistance Input Capacitance Input Voltage Common Mode Range (Implied by VIO CMRR, +RIN, and -IB-IAS CMS Tests) Input Noise Voltage Density Non-Inverting Input Noise Current Density Inverting Input Noise Current Density TRANSFER CHARACTERISTICS Open Loop Transimpedance Gain AC CHARACTERISTICS (Note 3) -3dB Bandwidth (VOUT = 0.2VP-P, Notes 3, 5) AV = -1 AV = +2 AV = +6 Full Power Bandwidth (VOUT = 5VP-P, Notes 3, 5) AV = -1 AV = +2 AV = +6 Gain Flatness (VOUT = 0.2VP-P, Notes 3, 5) AV = -1, To 25MHz AV = -1, To 50MHz AV = -1, To 100MHz AV = +2, To 25MHz AV = +2, To 50MHz AV = +2, To 100MHz AV = +6, To 15MHz AV = +6, To 30MHz Minimum Stable Gain Crosstalk (AV = +2, All Channels Hostile, Note 5) 5MHz 10MHz AV = -1
C
25
-
500
-
-
500
-
k
B B B B B B B B B B B B B B A B B
25 25 25 25 25 25 25 25 25 25 25 25 25 25 Full 25 25
-
420 560 140 260 165 140 0.03 0.04 0.03 0.03 0.08 0.19 1 -60 -56
-
-
360 400 100 260 165 100 0.04 0.04 0.06 0.04 0.04 0.06 0.08 0.27 1 -55 -52
-
MHz MHz MHz MHz MHz MHz dB dB dB dB dB dB dB dB V/V dB dB
OUTPUT CHARACTERISTICS AV = +2 (Note 3), Unless Otherwise Specified Output Voltage Swing (Note 5) Output Current (Note 5) Output Short Circuit Current Closed Loop Output Impedance Second Harmonic Distortion (VOUT = 2VP-P, Note 5) 10MHz 20MHz AV = -1, RL = 100 A A AV = -1, RL = 50 A A B B B B 25 Full 25, 85 -40 25 25 25 25 3 2.8 50 28 3.4 3 60 42 90 0.2 -51 -46 3 2.8 50 28 3.4 3 60 42 90 0.2 -51 -46 V V mA mA mA dBc dBc
3
HFA1405
Electrical Specifications
VSUPPLY = 5V, AV = +1, RF = 510 , RL = 100 , Unless Otherwise Specified (Continued) (NOTE 4) TEST LEVEL B B HFA1405IB (SOIC) TEMP. (oC) 25 25 MIN TYP -63 -56 MAX HFA1405IP (PDIP) MIN TYP -63 -56 MAX UNITS dBc dBc
PARAMETER Third Harmonic Distortion (VOUT = 2VP-P, Note 5)
TEST CONDITIONS 10MHz 20MHz
TRANSIENT CHARACTERISTICS AV = +2 (Note 3), Unless Otherwise Specified Rise and Fall Times (VOUT = 0.5VP-P, Note 3) Overshoot (VOUT = 0.5VP-P, VIN tRISE = 1ns, Notes 3, 6) AV = +2 AV = +6 AV = -1, +OS AV = -1, -OS AV = +2, +OS AV = +2, -OS AV = +6, +OS AV = +6, -OS Slew Rate (VOUT = 5VP-P, Notes 3, 5) AV = -1, +SR AV = -1, -SR AV = +2, +SR AV = +2, -SR AV = +6, +SR AV = +6, -SR Settling Time (VOUT = +2V to 0V Step, Note 5) To 0.1% To 0.05% To 0.025% Overdrive Recovery Time VIDEO CHARACTERISTICS Differential Gain (f = 3.58MHz) Differential Phase (f = 3.58MHz) VIN = 2V B B B B B B B B B B B B B B B B B B 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 0.8 2.9 7 8 5 10 2 2 2500 1900 1700 1700 1500 1100 23 30 37 8.5 0.9 4 3 13 7 11 2 2 2500 1900 1600 1400 1000 1000 23 30 40 8.5 ns ns % % % % % % V/s V/s V/s V/s V/s V/s ns ns ns ns
AV = +2 (Note 3), Unless Otherwise Specified RL = 150 RL = 75 RL = 150 RL = 75 B B B B 25 25 25 25 0.02 0.03 0.03 0.06 0.03 0.06 0.03 0.06 % % Degrees Degrees
POWER SUPPLY CHARACTERISTICS Power Supply Range Power Supply Current (Note 5) C A A NOTES: 3. The optimum feedback resistor depends on closed loop gain and package type. The following resistors were used for the PDIP/SOIC characterization: AV = -1, RF = 310/360; AV = +2, RF = 402/510; AV = +6, RF = 500/500. See the Application Information section for more information. 4. Test Level: A. Production Tested; B. Typical or Guaranteed Limit Based on Characterization; C. Design Typical for Information Only. 5. See Typical Performance Curves for more information. 6. Undershoot dominates for output signal swings below GND (e.g., 2VP-P), yielding a higher overshoot limit compared to the VOUT = 0V to 2V condition. See the "Application Information" section for details. 25 25 Full 4.5 5.8 5.9 5.5 6.1 6.3 4.5 5.8 5.9 5.5 6.1 6.3 V mA/Op Amp mA/Op Amp
4
HFA1405 Application Information
Performance Differences Between PDIP and SOIC
The amplifiers comprising the HFA1405 are high frequency current feedback amplifiers. As such, they are sensitive to feedback capacitance which destabilizes the op amp and causes overshoot and peaking. Unfortunately, the standard quad op amp pinout places the amplifier's output next to its inverting input, thus making the package capacitance an unavoidable parasitic feedback capacitor. The larger parasitic capacitance of the PDIP requires an inherently more stable amplifier, which yields a PDIP device with lower performance than the SOIC device - see Electrical Specification tables for details. Because of these performance differences, designers should evaluate and breadboard with the same package style to be used in production. Note that the "Typical Performance Curves" section has separate pulse and frequency response graphs for each package type. Graphs not labeled with a specific package type are applicable to both packages.
NOTE: RF = 500 is not the optimum value. It was chosen to match the RF of the CLC414 and CLC415, for performance comparison purposes. Performance at AV = +6 may be increased by reducing RF below 500.
Non-inverting Input Source Impedance
For best operation, the DC source impedance seen by the non-inverting input should be 50. This is especially important in inverting gain configurations where the noninverting input would normally be connected directly to GND.
Pulse Undershoot
The HFA1405 utilizes a quasi-complementary output stage to achieve high output current while minimizing quiescent supply current. In this approach, a composite device replaces the traditional PNP pulldown transistor. The composite device switches modes after crossing 0V, resulting in added distortion for signals swinging below ground, and an increased undershoot on the negative portion of the output waveform (see Figure 6 and Figure 9). This undershoot isn't present for small bipolar signals, or large positive signals (see Figure 5 and Figure 8).
Optimum Feedback Resistor
Although a current feedback amplifier's bandwidth dependency on closed loop gain isn't as severe as that of a voltage feedback amplifier, there can be an appreciable decrease in bandwidth at higher gains. This decrease may be minimized by taking advantage of the current feedback amplifier's unique relationship between bandwidth and RF. All current feedback amplifiers require a feedback resistor, even for unity gain applications, and RF, in conjunction with the internal compensation capacitor, sets the dominant pole of the frequency response. Thus, the amplifier's bandwidth is inversely proportional to RF. The HFA1405 design is optimized for RF = 402/510 (PDIP/SOIC) at a gain of +2. Decreasing RF decreases stability, resulting in excessive peaking and overshoot (Note: Capacitive feedback causes the same problems due to the feedback impedance decrease at higher frequencies). However, at higher gains the amplifier is more stable so RF can be decreased in a trade-off of stability for bandwidth. The table below lists recommended RF values for various gains, and the expected bandwidth. For good channel-tochannel gain matching, it is recommended that all resistors (termination as well as gain setting) be 1% tolerance or better.
OPTIMUM FEEDBACK RESISTOR GAIN (ACL) -1 +2 +6 RF () PDIP/SOIC 310/360 402/510 500/500 (Note) BANDWIDTH (MHz) PDIP/SOIC 360/420 400/560 100/140
PC Board Layout
The frequency response of this amplifier depends greatly on the amount of care taken in designing the PC board. The use of low inductance components such as chip resistors and chip capacitors is strongly recommended, while a solid ground plane is a must! Attention should be given to decoupling the power supplies. A large value (10F) tantalum in parallel with a small value (0.1F) chip capacitor works well in most cases. Terminated microstrip signal lines are recommended at the input and output of the device. Capacitance, parasitic or planned, connected to the output must be minimized, or isolated as discussed in the next section. Care must also be taken to minimize the capacitance to ground seen by the amplifier's inverting input (-IN). The larger this capacitance, the worse the gain peaking, resulting in pulse overshoot and eventual instability. To reduce this capacitance the designer should remove the ground plane under traces connected to -IN, and keep connections to -IN as short as possible. An example of a good high frequency layout is the Evaluation Board shown in Figure 3.
Driving Capacitive Loads
Capacitive loads, such as an A/D input, or an improperly terminated transmission line will degrade the amplifier's phase margin resulting in frequency response peaking and possible oscillations. In most cases, the oscillation can be avoided by placing a resistor (RS) in series with the output prior to the capacitance.
5
HFA1405
Figure 1 details starting points for the selection of this resistor. The points on the curve indicate the RS and CL combinations for the optimum bandwidth, stability, and settling time, but experimental fine tuning is recommended. Picking a point above or to the right of the curve yields an overdamped response, while points below or left of the curve indicate areas of underdamped performance. RS and CL form a low pass network at the output, thus limiting system bandwidth well below the amplifier bandwidth of 560MHz. By decreasing RS as CL increases (as illustrated in the curve), the maximum bandwidth is obtained without sacrificing stability. In spite of this, bandwidth still decreases as the load capacitance increases.
50 SERIES OUTPUT RESISTANCE () RS 50 OUT RG IN 50 RF 1 2 3 4 5 +5V 10F 0.1F 6 7 9 8 GND GND + 14 13 12 11 10 0.1F 10F -5V
FIGURE 2. EVALUATION BOARD SCHEMATIC
TOP LAYOUT
40
30
20 AV = +2 10
0
0
50
100
150
200
250
300
350
400
LOAD CAPACITANCE (pF)
FIGURE 1. RECOMMENDED SERIES OUTPUT RESISTOR vs LOAD CAPACITANCE BOTTOM LAYOUT
Evaluation Board
The performance of the HFA1405 (PDIP) may be evaluated using the HA5025 Evaluation Board. The schematic for amplifier 1 and the board layout are shown in Figure 2 and Figure 3. Resistors RF, RG , and RS may require a change to values applicable to the HFA1405. To order evaluation boards (part number HA5025EVAL), please contact your local sales office.
FIGURE 3. EVALUATION BOARD LAYOUT
6
HFA1405 Typical Performance Curves
VSUPPLY = 5V, TA = 25oC, RF = Value From the Optimum Feedback Resistor Table, RL = 100, Unless Otherwise Specified
160 AV = +2 120 SOIC OUTPUT VOLTAGE (mV) OUTPUT VOLTAGE (V) 80 40 0 -40 -80 -120 -160 TIME (5ns/DIV.)
1.6 1.2 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.) AV = +2 SOIC
FIGURE 4. SMALL SIGNAL PULSE RESPONSE
FIGURE 5. LARGE SIGNAL PULSE RESPONSE
1.6 1.2 OUTPUT VOLTAGE (V) 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.) AV = +2 SOIC OUTPUT VOLTAGE (mV)
160 120 80 40 0 -40 -80 -120 -160 TIME (5ns/DIV.) AV = -1 SOIC
FIGURE 6. LARGE SIGNAL PULSE RESPONSE
FIGURE 7. SMALL SIGNAL PULSE RESPONSE
1.6 1.2 OUTPUT VOLTAGE (V) 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.) AV = -1 SOIC OUTPUT VOLTAGE (V)
1.6 1.2 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.) AV = -1 SOIC
FIGURE 8. LARGE SIGNAL PULSE RESPONSE
FIGURE 9. LARGE SIGNAL PULSE RESPONSE
7
HFA1405 Typical Performance Curves
VSUPPLY = 5V, TA = 25oC, RF = Value From the Optimum Feedback Resistor Table, RL = 100, Unless Otherwise Specified (Continued)
160 120 OUTPUT VOLTAGE (mV) 80 40 0 -40 -80 -120 -160 TIME (5ns/DIV.) AV = +6 SOIC OUTPUT VOLTAGE (V)
1.6 1.2 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.) AV = +6 SOIC
FIGURE 10. SMALL SIGNAL PULSE RESPONSE
FIGURE 11. LARGE SIGNAL PULSE RESPONSE
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
6 3
VOUT = 200mVP-P SOIC GAIN NORMALIZED PHASE (DEGREES) AV = +2 AV = -1 PHASE AV = +6 0 AV = +6 AV = -1 AV = +2 90 180 270 360
2 1 0 -1 -2 -3
AV = +2 VOUT = 200mVP-P SOIC
RF = 500 RF = 683 RF = 750
0 -3 -6
RF = 1k RF = 1.5k PHASE (DEGREES)
RF = 1.5k
0 90 180
RF = 500 1 10 100 FREQUENCY (MHz)
270 360 1000
0.3
1
10 100 FREQUENCY (MHz)
800
FIGURE 12. FREQUENCY RESPONSE
FIGURE 13. FREQUENCY RESPONSE vs FEEDBACK RESISTOR
0.3 0.2 NORMALIZED GAIN (dB) 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 1
VOUT = 200mVP-P SOIC AV = -1 AV = +2 NORMALIZED GAIN (dB)
0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 10 FREQUENCY (MHz) 100 -0.8 1 10 FREQUENCY (MHz) 100 RF = 1.5k RF = 750 RF = 1k RF = 683 AV = +2, SOIC VOUT = 200mVP-P RF = 500
AV = +6
FIGURE 14. GAIN FLATNESS
FIGURE 15. GAIN FLATNESS vs FEEDBACK RESISTOR
8
HFA1405 Typical Performance Curves
VSUPPLY = 5V, TA = 25oC, RF = Value From the Optimum Feedback Resistor Table, RL = 100, Unless Otherwise Specified (Continued)
160 120 OUTPUT VOLTAGE (mV) 80 40 0 -40 -80 -120 -160
AV = +1 PDIP OUTPUT VOLTAGE (V)
1.6 1.2 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.)
AV = +1 PDIP
TIME (5ns/DIV.)
FIGURE 16. SMALL SIGNAL PULSE RESPONSE
FIGURE 17. LARGE SIGNAL PULSE RESPONSE
160 120 OUTPUT VOLTAGE (mV) 80 40 0 -40 -80 -120 -160
AV = -1 PDIP OUTPUT VOLTAGE (V)
1.6 1.2 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.)
AV = -1 PDIP
TIME (5ns/DIV.)
FIGURE 18. SMALL SIGNAL PULSE RESPONSE
FIGURE 19. LARGE SIGNAL PULSE RESPONSE
160 120 OUTPUT VOLTAGE (mV) 80 40 0 -40 -80 -120 -160
AV = +2 PDIP OUTPUT VOLTAGE (V)
1.6 1.2 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.)
AV = +2 PDIP
TIME (5ns/DIV.)
FIGURE 20. SMALL SIGNAL PULSE RESPONSE
FIGURE 21. LARGE SIGNAL PULSE RESPONSE
9
HFA1405 Typical Performance Curves
VSUPPLY = 5V, TA = 25oC, RF = Value From the Optimum Feedback Resistor Table, RL = 100, Unless Otherwise Specified (Continued)
160 120 OUTPUT VOLTAGE (mV) 80 40 0 -40 -80 -120 -160
AAV = +6 V = +2 PDIP PDIP RF = 150 OUTPUT VOLTAGE (V)
1.6 1.2 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.) TIME (5ns/DIV.) AV = +6 PDIP RF = 150
FIGURE 22. SMALL SIGNAL PULSE RESPONSE
FIGURE 23. LARGE SIGNAL PULSE RESPONSE
160 120 OUTPUT VOLTAGE (mV) 80 40 0 -40 -80 AV = +6 PDIP RF = 500
1.6 1.2 OUTPUT VOLTAGE (V) 0.8 0.4 0 -0.4 -0.8 -1.2 -1.6 TIME (5ns/DIV.) TIME (5ns/DIV.) AV = +6 PDIP RF = 500
-120 -160
FIGURE 24. SMALL SIGNAL PULSE RESPONSE
FIGURE 25. LARGE SIGNAL PULSE RESPONSE
NORMALIZED GAIN (dB)
NORMALIZED GAIN (dB)
VOUT = 200mVP-P PDIP 3 0 -3 -6 AV = +2 AV = -1 AV = +1 AV = -1 AV = +1 (RF = +RS = 510) 0 90 180 270 360 0.3 1 10 FREQUENCY (MHz) 100 800 NORMALIZED PHASE (DEGREES) AV = +2
AV = +6 VOUT = 200mVP-P 3 0 -3 -6 RF = 150 RF = 500 90 RF = 500 RF = 150 180 270 360 0.3 1 10 FREQUENCY (MHz) 100 800 PHASE (DEGREES) 0 PDIP
FIGURE 26. FREQUENCY RESPONSE
FIGURE 27. FREQUENCY RESPONSE
10
HFA1405 Typical Performance Curves
VSUPPLY = 5V, TA = 25oC, RF = Value From the Optimum Feedback Resistor Table, RL = 100, Unless Otherwise Specified (Continued)
3 NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) 2 1 0 -1 -2 -3 -4 AV = +6 (RF = 500) AV = +6 (RF = 150) 0.3 1 10 FREQUENCY (MHz) 100 800 1 10 FREQUENCY (MHz) 100 800 AV = +2 VOUT = 5VP-P PDIP AV = -1 2 1 0 -1 -2 -3 RF = 422 RF = 510 AV = +2 VOUT = 200mVP-P PDIP RF = 365 RF = 390
FIGURE 28. FULL POWER BANDWIDTH
FIGURE 29. FREQUENCY RESPONSE vs FEEDBACK RESISTOR
-42 NORMALIZED GAIN (dB) 0.2 0.1 0 -0.1 -0.2 -0.3 AV = -1 AV = +6 (RF = 150) VOUT = 200mVP-P PDIP AV = +1 (RF = +RS = 510) AV = +2 DISTORTION (dBc) -43 -44 -45 -46 -47 -48 -49 -50 -51 -52 -53 -54 -55 1 10 FREQUENCY (MHz) 100 -50 -25 0 25 50 75 100 125 TEMPERATURE (oC) 10MHz 20MHz
FIGURE 30. GAIN FLATNESS
FIGURE 31. 2nd HARMONIC DISTORTION vs TEMPERATURE
-55 -56 -57 OUTPUT VOLTAGE (V) -58 DISTORTION (dBc) -59 -60 -61 -62 -63 -64 -65 -66 -67 -50 -25 0 25 50 75 100 125 10MHz 20MHz
3.6 3.5 3.4 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 -50 -25 0 25 50 75 100 125 +VOUT (RL= 50) AV = -1 +VOUT (RL= 100) |-VOUT| (RL= 50) |-VOUT| (RL= 100)
TEMPERATURE (oC)
TEMPERATURE (oC)
FIGURE 32. 3rd HARMONIC DISTORTION vs TEMPERATURE
FIGURE 33. OUTPUT VOLTAGE vs TEMPERATURE
11
HFA1405 Typical Performance Curves
VSUPPLY = 5V, TA = 25oC, RF = Value From the Optimum Feedback Resistor Table, RL = 100, Unless Otherwise Specified (Continued)
6.6 SUPPLY CURRENT (mA / AMPLIFIER) 6.5 6.4 6.3 6.2 6.1 6.0 5.9 5.8 5.7 5.6 5.5 4.5 5 5.5 6 6.5 7 SETTLING ERROR (%) 0.2 0.15 0.1 0.05 0.025 0 -0.025 -0.05 -0.1 -0.15 -0.2 0 5 10 15 20 25 30 TIME (ns) 35 40 45 50 AV = +2 VOUT = 2V
SUPPLY VOLTAGE (V)
FIGURE 34. SUPPLY CURRENT vs SUPPLY VOLTAGE
FIGURE 35. SETTLING RESPONSE
-10 SOIC -20 -30 CROSSTALK (dB) -40 -50 -60 -70 -80 -90 -100 -110 0.3 1 10 FREQUENCY (MHz) 100 200 RL = RL = 100 CROSSTALK (dB) -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 0.3 1 10 FREQUENCY (MHz) 100 RL = RL = 100 PDIP
FIGURE 36. ALL HOSTILE CROSSTALK
FIGURE 37. ALL HOSTILE CROSSTALK
12
HFA1405 Die Characteristics
DIE DIMENSIONS: 79 mils x 118 mils x 19 mils 2000m x 3000m x 483m METALLIZATION: Type: Metal 1: AICu(2%)/TiW Thickness: Metal 1: 8kA 0.4kA Type: Metal 2: AICu(2%) Thickness: Metal 2: 16kA 0.8kA SUBSTRATE POTENTIAL (Powered Up): Floating (Recommend Connection to V-) PASSIVATION: Type: Nitride Thickness: 4kA 0.5kA TRANSISTOR COUNT: 320
Metallization Mask Layout
HFA1405
-IN1 OUT1 OUT4 -IN4
+IN1
+IN4
V+
V-
+IN2
+IN3
-IN2
OUT2
V-
OUT3
-IN3
All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification.
Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site http://www.intersil.com
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