AD5543-EP 데이터 시트보기 (PDF) - Analog Devices

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AD5543-EP

Current Output/Serial Input, 16-Bit DAC

Analog Devices 

AD5543-EP

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

Data Sheet

CLK 1

SDI 2

RFB 3

VREF 4

AD5543-EP

TOP VIEW

(Not to Scale)

8 CS

7 VDD

6 GND

5 IOUT

Figure 3. Pin Configuration

Table 3. Pin Function Descriptions

Pin No. Mnemonic Description

1

CLK

Clock Input. Positive-edge triggered, clocks data into shift register.

2

SDI

Serial Register Input. Data loads directly into the shift register MSB first. Extra leading bits are ignored.

3

RFB

Internal Matching Feedback Resistor. This pin connects to an external op amp for voltage output.

4

VREF

DAC Reference Input Pin. Establishes DAC full-scale voltage. Constant input resistance vs. code.

5

IOUT

DAC Current Output. This pin connects to the inverting terminal of the external precision I-to-V op amp for

voltage output.

6

GND

Analog and Digital Ground.

7

VDD

Positive Power Supply Input. Specified range of operation at 5 V ± 10%.

8

CS

Chip Select. Active low digital input. Transfers shift-register data to DAC register on rising edge.

Rev. 0 | Page 6 of 12

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