HS3160 查看數據表（PDF） - Signal Processing Technologies

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HS3160

16-Bit Multiplying DACs

Signal Processing Technologies 

Applications Information

Unipolar Operation

Figure 2 shows the interconnections for unipolar

operation. Connect IO1 and FB1 as shown in dia-

gram. Tie IO2 (Pin 7), FB3 (Pin 3), and FB4 (Pin 1)

to Ground (Pin 8). As shown, a series resistor is

recommended in the VDD supply line to limit

current during ‘turn-on.’ To maintain specified

linearity, external amplifiers must be zeroed. Apply

an ALL “ZEROES” digital input and adjust ROS

for VOUT = 0 ± 1mV. The SP7516 and HS3160

have been used successfully with OP-07, OP-27

and LF441A. For high speed applications the

SP2525 is recommended.

Bipolar Operation

Figure 3 shows the interconnections for bipolar

operation. Connect IO1, IO2, FB1, FB3, FB4 as

shown in diagram. Tie LDTR to IO2. As shown, a

series resistor is recommended in the VDD supply

line to limit current during ‘turn-on. To maintain

specified linearity, external amplifiers must be

zeroed. This is best done with VREF set to zero and,

the DAC register loaded with 10...0 (MSB = 1). Set

R0S1 for V01 = 0. Set R0S2 for VOUT = 0. Set VREF

to +10V and adjust RB for VOUT to be 0V.

Grounding

Connect all GND pins to system analog ground

and tie this to digital ground. All unused input

pins must be grounded.

Corporation

SIGNAL PROCESSING EXCELLENCE

133

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