Corporation

SIGNAL PROCESSING EXCELLENCE

130

PIN ASSIGNMENTS

HS3160 22–PIN

Pin 1 – IO

Pin 2 – IO

Pin 3 – GND – Ground.

Pin 4 – DB

Pin 5 – DB

Pin 6 – DB

Pin 7 – DB

Pin 8 – DB

Pin 9 – DB

Pin 10 – DB

Pin 11 – DB

Pin 12 – DB

Pin 13 – DB

Pin 14 – DB

Pin 15 – DB

Pin 16 – DB

Pin 17 – DB

Pin 18 – DB

Pin 19 – DB

Pin 20 – V

Pin 21 – V

Pin 22 – R

SP7516 24–PIN

Pin 1 – IO

Pin 2 – IO

Pin 3 – IO

Pin 4 – GND – Ground.

Pin 5 – DB

Pin 6 – DB

Pin 7 – DB

Pin 8 – DB

Pin 9 – DB

Pin 10 – DB

Pin 11 – DB

Pin 12 – DB

Pin 13 – DB

Pin 14 – DB

Pin 15 – DB

Pin 16 – DB

Pin 17 – DB

Pin 18 – DB

Pin 19 – DB

Pin 20 – DB

Pin 21 – V

Pin 22 – V

Pin 23 – V

Pin 24 – R

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

+

–

EO

Cf

C

Rp

Rf

CO

Ri

VREF