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NTE2056 Integrated Circuit 8-Bit Multiplying Digital-to-Analog Converter
Description: The NTE2056 is an 8-bit multiplying D-to-A converter in a 16-Lead DIP type package designed for use where the output current is a linear product of an eight-bit digital word and an analog input voltage. Features: D Fast Setting Time: 300ns Typ D Non-Inverting Digital Inputs are MTTL and CMOS Compatible D Output Voltage Swing: +0.4V to -5.0V D High-Speed Multipling Input: Slew Rate 4.0mA/s D Standard Supply Voltages: +5.0V and -5.0V to -15V Applications: D Tracking A-to-D Converters D Successive Approximation A-to-D Converters D 2 1/2 Digit Panel Meters and DVM's D Waveform Synthesis D Sample and Hold D Peak Detector D Programmable Gain and Attenuation D CRT Character Generation
D D D D D D D D
Audio Digitizing and Decoding Programmable Power Supplies Analog-Digital Multiplication Digital-Digital Multiplication Analog-Digital Division Digital Addition and Subtraction Speech Compression and Expansion Stepping Motor Drive
Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Power Supply Voltage VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5.5V VEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -16.5V Digital Input Voltage, V5 thru V12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +5.5V Applied Output Voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5V, -5.2V Reference Current, I14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Reference Amplifier Inputs V14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC V15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VEE Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +75C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C
Electrical Characteristics: (TA = 0 to +75C, VCC = +5V, VEE = -15V, Vref/R14 = 2mA, All digital inputs at high logic level, unless otherwise specified)
Parameter Relative Accuracy (Error relative to full scale IO) Setting Time to within 1/2 LSB (Includes tPLH) Propagation Delay Time Output Full Scale Current Drift Digital Input Logic Levels (MSB) High Level, Logic "1" Low Level, Logic "0" Digital Input Current (MSB) High Level Low Level Reference Input Bias Current (Pin15) Output Current Range Symbol Er tS TCIO VIH VIL IIH IIL I15 IOR IO IO (min) Output Voltage Compliance VO VEE = -5V VEE = -15V, TA = +25C Output Current Vref = 2.000V, R14 = 1000 All bits low Er 0.19%, Pin1 Grounded TA = +25C Pin1 Open, VEE below -10V VIH = 5V VIL = 0.8V Test Conditions Note 1 TA = +25C, Note 2 Min - - - - 2.0 - - - - 0 0 1.9 - - - - - All bits low - - TA = +25C +4.5 Typ - 300 30 -20 - - 0 -0.4 -1.0 2.0 2.0 1.99 0 - - 4.0 0.5 +13.5 -7.5 +5.0 Max 0.78 - 100 - - 0.8 0.04 -0.8 -5.0 2.1 4.2 2.1 4.0 -0.55, +0.4 -5.0, +0.4 - 2.7 +22.0 -13.0 +5.5 -16.5 170 305 - - Unit % ns ns PPM/C V V mA mA A mA mA mA A V V mA/s A/V mA mA V V mW mW mW mW
tPLH, tPHL TA = +25C
Reference Current Slew Rate Output Current Power Supply Sensitivity Power Supply Current
SR Iref PSRR(-) ICC IEE VCCR VEER PD
Power Supply Voltage Range
-4.5 -15.0 VEE = -5V VEE = -15V VEE = -5V VEE = -15V - - - - 105 190 90 160
Power Dissipation All bits low
All bits high
Note 1. All current switches are tested to guarantee at least 50% of rated output current. Note 2. All bits switched.
Pin Connection Diagram
Range Control 1 GND 2 VEE 3 IO 4 (MSB) A1 5 A2 6 A3 7 A4 8
16 Compensation 15 Vref (-) 14 Vref (+) 13 VCC 12 A8 (LSB) 11 A7 10 A6 9 A5
16
9
1
8
.870 (22.0) Max .200 (5.08) Max
.260 (6.6) Max
.100 (2.54) .700 (17.78)
.099 (2.5) Min

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