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DG333A/333AL
Vishay Siliconix
Precision Quad SPDT Analog Switch
FEATURES
D D D D D D D D D D D "22-V Supply Voltage Range TTL and CMOS Compatible Logic Low On-Resistance (25 W) On-Resistance Matched Between Channels (<2 W) Flat On-Resistance Over Analog Signal Range (D <3 W) Low Charge Injection (1 pC) Low Leakage (0.2 nA) Fast Switching (175 ns) Single-Supply Operation (5 V to 40 V) ESD tolerance >2 kV per 3015.x Low Power (<1 mA) - DG333A/333AL
BENEFITS
D D D D D D D D Rail-to-Rail Analog Signal Range Simple Logic Interface High Precision and Accuracy Minimal Transients Low Distortion Reduced Power Consumption Improved Reliability Break-Before-Make Switching Action
APPLICATIONS
D D D D D D D D D Audio Switching Test Equipment Portable Instrumentation Communication Systems PBX, PABX Computer Peripherals Mass Storage Systems Switched-Capacitor Networks Battery-Powered Systems
DESCRIPTION
The DG333A/333AL consist of four independently controlled single-pole double-throw analog switches. These monolithic switch is designed to control analog signals with a high degree of accuracy. The DG333A/333AL minimize measurement errors by offering low on-resistance (25-W typ), low leakage (20-pA typ) and low charge injection performance. The DG333AL features micro-power operation (<1-mW typ). This is ideal for battery operated systems. Pin 15 is not connected on the DG333A. An improved charge injection compensation design minimizes switching transients. These switches can handle up to "22-V signals and have an improved continuous current of 30 mA. The DG333A/333AL is fabricated in Vishay Siliconix's proprietary HVSG-2 CMOS process, resulting in higher speed and lower power consumption. An epitaxial layer prevents latchup. Each switch conducts equally well in both directions when on. When off, they block voltages up to the power-supply levels.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line and Wide-Body SOIC IN1 S1 D1 S2 V- GND S3 D2 S4 1 2 3 4 5 6 7 8 9 20 IN4 19 S8 18 D4 17 S7 16 V+ 15 VL (DG333AL Only) 14 S6 13 D3 12 11 Top View S5 IN3
-40 to 85_C 40
TRUTH TABLE
Logic
0 1
SW1, 4, 5, 8 Normally Open
Off On Logic "0" v 0.8 V Logic "1" w 2.4 V
SW2, 3, 6, 7 Normally Closed
On Off
ORDERING INFORMATION
Temp Range Package
20-Pin Plastic DIP DG333ALDJ DG333ADW 20-Pin Wide-Body SOIC DG333ALDW
Part Number
DG333ADJ
IN2 10
Document Number: 70803 S-52433--Rev. B, 06-Sep-99
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DG333A/333AL
Vishay Siliconix
ABSOLUTE MAXIMUM RATINGS
Voltages Referenced to V- V+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 V GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V V+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Digital Inputsa VS, VD . . . . . . . . . . . . . . . . . . . . . . . . . . (V-) -2 V to (V+) +2 V or 30 mA, whichever occurs first Current, Any Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Peak Current, S or D (Pulsed at 1 ms, 10% duty cycle max) . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 125_C Power Dissipation (Package)b 20-Pin Plastic DIPc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 890 mW 20-Pin Wide SOICd . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800 mW Notes: a. Signals on SX, DX, or INX exceeding V+ or V- will be clamped by internal diodes. Limit forward diode current to maximum current ratings. b. All leads welded or soldered to PC Board. c. Derate 12 mW/_C above 75_C d. Derate 10 mW/_C above 75_C
SCHEMATIC DIAGRAM (TYPICAL CHANNEL)
V+ S2
V- V+ DG333A 5V Reg Level Shift/ Drive INX V- V+ S1
VL (DG333AL)
D GND V-
FIGURE 1.
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Document Number: 70803 S-52433--Rev. B, 06-Sep-99
DG333A/333AL
Vishay Siliconix
SPECIFICATIONS
Test Conditions Unless Otherwise Specified Parameter Analog Switch
Analog Signal Ranged Channel On-Resistance rDS(on) On-Resistance Flatness rDS(on) Match Between Channelsf Source Off Leakage Current Channel On Leakage Current DrDS(on) IS(off) ID(on) VANALOG IS = -10 mA, VD = "10 V IS = -10 mA, VD = "5 V V+ = 16.5 V, V- = -16.5 V IS = -10 mA, VD = "10 V VD = "15.5 V, VS = #15.5 V V+ = 16.5V, V- = -16.5 V VD = "15.5 V, VS(open) = #15.5 V V+ = 16.5V, V- = -16.5 V Full Room Full Room Full Room Full Room Hot Room Hot -0.25 -20 -0.75 -60 V- 25 V+ 45 90 3 5 2 4 0.25 20 nA 0.75 60 W V
Limits
D Suffix -40 to 85_C
Symbol
V+ V = 15 V, V = -15 V V V- 15 VIN = 2.4 V, 0.8 Ve
Tempa
Minb
Typc
Maxb
Unit
Digital Control
Input Voltage High Input Voltage Low Input Current VINH VINL IINH or IINL VINH or VINL Full Full Full -1 2.4 0.8 1 V mA
Dynamic Characteristics
Turn-On Time Turn-Off Time Break-Before-Make Time Delay Charge Injectiond Off Isolation Channel-to-Channel Crosstalk Off Capacitance Channel On Capacitance tON tOFF tD Q OIRR XTALK COFF CON See Switching Time Test Circuit Figure 2 See Figure 3 CL= 10 nF, Vgen = 0 V, Rgen = 0 W RL = 75 W, CL = 5 pF , p VD = 2 3 VRMS, f = 1 MHz 2.3 MH f = 1 MHz, VS = 0 V Room Room Room Room Room Room Room Room 72 dB 80 8 pF 12 5 10 pC 175 145 ns
Power Supplies
Positive Supply Current Negative Supply Current Positive Supply Current Logic Supply Current Negative Supply Current Supply Voltage Range I+ I- I+ IL I- V+/V- DG333AL: DG333AL VIN = 0 or 5 V, VL = 5 V V DG333A: VIN = 0 or 5 V Room Room Room Room Room Full -1 "4 "22 V -1 1 1 mA A 200
Document Number: 70803 S-52433--Rev. B, 06-Sep-99
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DG333A/333AL
Vishay Siliconix
SPECIFICATIONS (UNIPOLAR SUPPLIES)
Test Conditions Unless Otherwise Specified Parameter Analog Switch
Analog Signal Ranged Channel On-Resistance Source Off Leakage Current Channel On Leakage Current VANALOG rDS(on) IS(off) ID(on) IS = -10 mA, VD = 10, 1 V VD = 11 V, VS(open) = 1 V VD = 11 V, VS(open) = 0 V VD = 1 V, VS(open) = V+ Full Room Room Room V- 35 V+ 75 0.25 nA A 0.75 V W
Limits
D Suffix -40 to 85_C
Symbol
V+ V = 12 V V = -0 V V, V- 0 TA = 25_C
Tempa
Minb
Typc
Maxb
Unit
Dynamic Characteristics
Turn-On Time Turn-Off Time Break-Before-Make Time Delay tON tOFF tD See Switching Times Test Circuit Figure 2 See Figure 3 Room Room Room 5 90 45 10 ns
Power Supplies
Room Positive Supply Current Positive Supply Current Logic Supply Current Positive Supply Range I+ I+ IL V+ DG333AL: VIN = 0 or 5 V, VL = 5 V DG333A: VIN = 0 or 5 V Room Room Room Room 5 200 1 1 1 40 V A mA
Notes: a. Room = 25_C, Full = as determined by the operating temperature suffix. b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet. c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. d. Guaranteed by design, not subject to production test. e. VIN = input voltage to perform proper function. f. On-resistance match and flatness are guaranteed only for bipolar supply operation.
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
rDS(on) vs. VD (Dual Supply)
40 "7.5 V 35 r DS(on)- On-Resistance ( W ) r DS(on)- On-Resistance ( W ) 35 40
rDS(on) vs. VD and Temperature (Dual Supply)
125_C 30 85_C 70_C 25_C 0_C 15 -40_C -55_C
30 "10 V 25 "15 V "20 V 15
25
20
20
10 -20
-15
-10
-5
0
5
10
15
20
10 -15
-10
-5
0
5
10
15
VD - Drain Voltage (V) www.vishay.com S FaxBack 408-970-5600
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Document Number: 70803 S-52433--Rev. B, 06-Sep-99
DG333A/333AL
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
rDS(on) vs. VD (Single Supply)
180 75
rDS(on) vs. VD and Temperature (Single Supply)
r DS(on)- On-Resistance ( W )
150 r DS(on)- On-Resistance ( W ) 5V 120
63
51 125_C 39 85_C 70_C 25_C 0_C -40_C -55_C
90 7V 10 V 60 12 V 15 V 30
27
0 0 3 6 9 12 15
15 0 2 4 6 8 10 12
VD - Drain Voltage (V)
VD - Drain Voltage (V)
Leakage Currents vs. Analog Voltage
30 V+ = 15 V V- = -15 V 20
40 30 20
Drain Charge Injection
10 I (pA)
ID(off), IS(off) Q (pC) 10 0
0 ID(on)
-10
-10 -20 -30 -15
-20
-30 -15 -10 -5 0 5 10 15
-10
-5
0
5
10
15
VD or VS - Drain or Source Voltage (V)
VS - Source Voltage (V)
Input Switching Threshold vs. Supply Voltages
3.5 3.0 2.5 V IN (V) 2.0 1.5 1.0 0.5 0 (V+) 5 10 15 20 25 30 35 40 20 t ON , t OFF (ns) 80 120
Switching Time vs. Temperature
V+ = 15 V, V- = -15 V VIN = 3 V Pulse tON
100
tOFF 60
40
0 -55 -40 -20
0
20
40
60
80
100
120
Temperature (_C)
Document Number: 70803 S-52433--Rev. B, 06-Sep-99
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DG333A/333AL
Vishay Siliconix
TYPICAL CHARACTERISTICS (25_C UNLESS NOTED)
Crosstalk and Off Isolation vs. Frequency
140 120 100 Source 1 80 (dB) 60 40 20 0 100 1k 10 k 100 k 1M 10 M 100 M V+ = 15 V V- = -15 V t ON , t OFF (ns) Source 2 70 V- = 0 V VIN = 3 V 60 tON 80
Switching Time vs. Supply Voltages
50 tOFF
40 "10
"11
"12
"13
"14
"15
"16
f - Frequency (Hz)
Supply Voltage (V)
Switching Time vs. V+
130 120 110 100 t ON , t OFF (ns) tON I SUPPLY 90 80 70 60 50 40 30 10 11 12 13 14 15 16 V+ Supply Voltage (V) tOFF 100 nA 100 1 mA V- = 0 V VIN = 3 V 100 mA 1 mA 10 mA
Power Supply Currents vs. Switching Frequency
V+ = 15 V, V- = -15 V VIN = 5 V, 50% D Cycle
I+, I- 10 mA IL
1k
10 k
100 k
1M
10 M
f - Frequency (Hz)
1 mA 100 nA 10 nA I SUPPLY 1 nA 100 pA
Supply Current vs. Temperature
V+ = 16.5 V, V- = -16.5 V VIN = 0 V
I+, I-
IGND 10 pA 1 pA 0.1 pA -55 -40
-20
0
20
40
60
80
100
120
Temperature (_C) www.vishay.com S FaxBack 408-970-5600
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Document Number: 70803 S-52433--Rev. B, 06-Sep-99
DG333A/333AL
Vishay Siliconix
TEST CIRCUITS
+15 V 3V VIN V+ +10 V -10 V S1 D1 S2 IN1 3V GND V- RL 300 W CL 35 pF VO VO +10 V 50% 0V 50% -10 V tOFF tON -15 V Repeat Test for IN2, IN3 and IN4 0V tOFF tOPEN 50%
tr <20 ns tf <20 ns
tON
tOPEN
FIGURE 2. Switching Times
+15 V Logic Input V+ S1 "10 V D S2 IN GND V- VO2 VO1 VO1 0V VD CL1 VO2 0V 90% 3V 50% 0V VD 90%
RL1 RL2 CL2
tD
tD
-15 V RL = 300 W, CL = 35 pF CL (includes fixture and stray capacitance)
FIGURE 3. Break-Before-Make
+15 V C V+ D IN S RL 100 W Analyzer CH A CH B VS Off Isolation + 20 log V D C = RF Bypass 0V, 2.4 V
GND
V-
C
-15 V
FIGURE 4. Off Isolation
Document Number: 70803 S-52433--Rev. B, 06-Sep-99 www.vishay.com S FaxBack 408-970-5600
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DG333A/333AL
Vishay Siliconix
TEST CIRCUITS
+15 V C V+ D1 S1 50 W
2.4 V
IN1
IN2
2.4 V
S8 RL 100 W Analyzer CH A CH B
D4
GND
V-
C
-15 V
FIGURE 5. Crosstalk
+15 V C V+ D Meter IN 0 V, 2.4 V S GND V- C HP4192A Impedance Analyzer or Equivalent f = 1 MHz
-15 V
FIGURE 6. Capacitances
+15 V
Rg
V+ D IN
S CL 10 nF V-
VO
VO IN
DVO
Vg 3V
On
Off Q = DVO x CL
On
GND
-15 V FIGURE 7. Charge Injection
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Document Number: 70803 S-52433--Rev. B, 06-Sep-99
DG333A/333AL
Vishay Siliconix
APPLICATIONS
Band-Pass Switched Capacitor Filter Single-pole double-throw switches are a common element for switched capacitor networks and filters. The fast switching times and low leakage of the DG333A/333AL allow for higher clock rates and consequently higher filter operating frequencies. Figure 8 shows two capacitors being switched. The DG333A/333AL is capable of switching four capacitors.
+15 V
V+ S1 S2 IN1 S8 S7 IN4 Clock
1/ 2
D1
ein
D4
DG333A/333AL
V-
GND
-15 V + - eout
FIGURE 8. Band-Pass Switched Capacitor Filter
Document Number: 70803 S-52433--Rev. B, 06-Sep-99
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