DAC337 APITECH | Alldatasheet

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Technical content

Adjustment-Free 8-Bit D ACs D AC337 D ata Converter Line

FEATURES

  • No Zero Or Gain A djusts
  • t/aLSB Linearity
  • Internal Reference and Output A mplifier
  • Low Power

DESCRIPTION

The DA C337 Series digital-to-analog converters are designed for completely adjustment-free operation. The word “simplicity” best characterizes the DA C337 Series. A ll models are housed in hermetically sealed DIP style packages and operate on ±15V power supplies. Each model incorporates a precision reference, highly stable thin-film nichrome resistor network, output amplifier, and switches. ±1/2 LSB li nearity is achieved without the use of external zero and gain adjustment circuits. Four output voltage ranges are offered — 0 to +10, 0 to –10 (unipolar) and ±5, ±10 (bipolar). FUNCTIONAL DIAGRAM RESISTOR NETW ORKINTERNA L REF SW ITCHES – BIPOLA R ONLY 5 (6) PIN OUTS n - DA C337-0, -1, -2, -6NC M EA NS NO CONNECTION V OLTA GE OUTPUT 1 2 3 4 11 12 13 14 8765432BIT 1 M SB GND – 15V GND +15V GND Spectrum Microwave offers the DAC337 for industrial and commercial applications. 165Cedar Hill Street,Marlborough,MA01752 Tel:508.485.6350 Fax: 508.485.5168 www.SpectrumMicrowave.com

(Typical for all models @ +25º C and nominal power supplies unless otherwise noted) SERIES DAC337 TY PE Fixed Ref., Volt, Output DIGITAL INPUT Resolution 8 Bits Coding DAC337-0 Complementary Binary DAC337-1,6 Offset Binary DAC337-2 Binary Logic Compatibility TTL, DTL, CM OS (from 5V supply) VIH= 2.4V typ., 3.5V min. VIH= 0.8V max. ANALOG OUTPUT Voltage DAC337-0 0 to –10V@ –5mA DAC337-1 +5V +5mA DAC337-2 0 to +10V@ +5mA DAC337-6 ±10V@ +5mA Impedance <0.1 REFERENCE Internal STATIC PERFORM ANCE Integral Linearity ±1/2 LSB, max. Differential Linearity ±1/2 LSB, typ.; ±1 LSB.max. DY NAM IC PERFORM ANCE Settling Time to 1/2 LSB for Full Scale Change DAC337–0,–1,–2 20µs DAC337-6 40µs For 1 LSB change 5µs typ.; 10µs max Slew Rate 0.5V/µs STABILITY (TM IN TO TM AX) Accuracy 1LSB Linearity ±1/1 LSB, max. Offset ±1 LSB, max. POW ER SUPPLY Voltage @ Current +15V ±20% @ +6mA, max. –15V ±20% @ –13mA, max. Power Supply Rejection Ratio +15V Supply, 0.1% FSR/VoIt –15V Supply, 0.2% FSR/VoIt TEM PERATURE RANGE Operating 0ºC to +70ºC Storage –65ºC to +150ºC M ECHANICAL Case Style M etal or ceramic at manufacturer's option CAUTION: ESD (Electro-Static Discharge) sensitive device. Permanent damage may occur when unconnected devices are subjected to high energy electrostatic fields. Unused devices must be stored in conductive foam or shunts. Protective foam should be discharged to the destination socket before devices are removed. Devices should be-handled at static safe workstations only. Unused digital inputs must be grounded or tied to the logic supply voltage. Unless otherwise noted, the supply voltage at any digital input should never exceed the supply voltage by more than 0.5 volts or go betow –0.5 volts. If this condition cannot be maintained, limit input current on digital inputs by using series resistors or contact SatCon for technical assistance. Specifications subject to change without notice. PIN FUNCTION PIN FUNCTION

1 BIT1 (M SB) 14 BIT 8 (LSB)

2 BIT 2 13 BIT 7

3 BIT 3 12 BIT 6

4 BIT 4 11 BIT 5

5 OUTPUT 10 N.C.

6 GND 9 +15V

0.475 (12.065) M AX 0.10 (2.54) 0.300 (7.620) 0.010 ±0.002 (0.457 ±0.050) 0.220 (5.588) M IN 0.100 (2.540) TY P RED DOT INDICATES PIN 1 0.155 (3.937) M AX 0.800 (20.320) M AX 0.10 (2.54) TOP VIEW DIM ENSIONS INCHES (mm) APPLICATIO N INFO RMATIO N RECOM M ENDED POW ER SUPPLY BY -PASS CIRCUIT TRANSFER CHARACTERISTICS +15 – 15 1µF 1µF COM 0.01µF 0.01µF + + PIN 9 PIN 10 PIN 6,8 PIN 7,9 PIN 7 (8BIT) PIN 8 (10 BIT) TRANSFER CHARACTERISTICS ANALOG OUTPUTDAC337 INPUT PINS 11111111 1 0 0 0 0 0 0 0 11111111 11111111 1111111111 1 0 0 0 0 0 0 0 0 0 0 111111111 0 0 0 0 0 0 0 0 0 0 337 – 0 – 4.961V – 5V – 9.961V – 1 +5V +0.040V – 4.961V – 2 – 9.961V +5V +4.961V – 6 +10V +0.080V – 9.921V – 4.961V – 9.990V +5V +0.010V – 4.990V +9.990V +5V +4.990V +10V +0.020V – 9.980V DAC337