HS7516 datasheet(4/8 Pages) SIPEX

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SIGNAL PROCESSING EXCELLENCE

130

PIN ASSIGNMENTS

HS3160 22–PIN

Pin 1 – IO

1 – Current Output 1.

Pin 2 – IO

2 – Current Output 2.

Pin 3 – GND – Ground.

Pin 4 – DB

15 – MSB, Data Bit 1.

Pin 5 – DB

14 – Data Bit 2.

Pin 6 – DB

13 – Data Bit 3.

Pin 7 – DB

12 – Data Bit 4.

Pin 8 – DB

11 – Data Bit 5.

Pin 9 – DB

10 – Data Bit 6.

Pin 10 – DB

9 – Data Bit 7.

Pin 11 – DB

8 – Data Bit 8.

Pin 12 – DB

7 – Data Bit 9.

Pin 13 – DB

6 – Data Bit 10.

Pin 14 – DB

5 – Data Bit 11.

Pin 15 – DB

4 – Data Bit 12.

Pin 16 – DB

3 – Data Bit 13.

Pin 17 – DB

2 – Data Bit 14.

Pin 18 – DB

1 – Data Bit 15.

Pin 19 – DB

0 – LSB, Data Bit 16.

Pin 20 – V

DD – Positive Supply Voltage.

Pin 21 – V

REF – Reference Voltage Input.

Pin 22 – R

FB – Feedback Resistor.

SP7516 24–PIN

Pin 1 – IO

1 – Current Output 1.

Pin 2 – IO

2 Sense – Current Output 2.

Pin 3 – IO

3 Force – Current Output 3.

Pin 4 – GND – Ground.

Pin 5 – DB

15 – MSB, Data Bit 1.

Pin 6 – DB

14 – Data Bit 2.

Pin 7 – DB

13 – Data Bit 3.

Pin 8 – DB

12 – Data Bit 4.

Pin 9 – DB

11 – Data Bit 5.

Pin 10 – DB

10 – Data Bit 6.

Pin 11 – DB

9 – Data Bit 7.

Pin 12 – DB

8 – Data Bit 8.

Pin 13 – DB

7 – Data Bit 9.

Pin 14 – DB

6 – Data Bit 10.

Pin 15 – DB

5 – Data Bit 11.

Pin 16 – DB

4 – Data Bit 12.

Pin 17 – DB

3 – Data Bit 13.

Pin 18 – DB

2 – Data Bit 14.

Pin 19 – DB

1 – Data Bit 15.

Pin 20 – DB

0 – LSB, Data Bit 16.

Pin 21 – V

DD – Positive Supply Voltage.

Pin 22 – V

REF Sense – Reference Voltage Input.

Pin 23 – V

REF Force – Reference Voltage Input.

Pin 24 – R

FB – Feedback Resistor.

FEATURES…

The SP7516 and HS3160 are precision 16-bit multi-

plying DACs. The DACs are implemented as a one-

chip CMOS circuit with a resistor ladder network.

Three output lines are provided on the DACs to allow

unipolar and bipolar output connection with a mini-

mum of external components. The feedback resistor

is internal. The resistor ladder network termination is

externally available, thus eliminating an external re-

sistor for the 1 LSB offset in bipolar mode.

The SP7516 is available for use in commercial and

industrial temperature ranges, packaged in a 24-pin

SOIC. The HS3160 is available in commercial

and military temperature ranges, packaged in a

24–pin side–brazed DIP. For product processed

and screened to the requirements of MIL–M–

38510 and MIL–STD–883C, please consult the

factory (HS3160B only).

PRINCIPLES OF OPERATION

TheSP7516/HS3160achievehighaccuracybyusing

a decoded or segmented DAC scheme to implement

this function. The following is a brief description of

this approach.

Figure 1. SP7516/HS3160 Equivalent Output Circuit

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VREF

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