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PIN ASSIGNMENTS

DRB PACKAGE

(TOP VIEW)

DGK PACKAGE

(TOP VIEW)

CLK

SDI

CS

GND

1

2

3

4

8

7

6

5

1

2

3

4

8

7

6

5

CLK

SDI

CS

GND

DAC8811

SLAS411B – NOVEMBER 2004 – REVISED FEBRUARY 2007

ELECTRICAL CHARACTERISTICS (continued)

V

85

°C, unless otherwise noted.

DAC8811

PARAMETER

CONDITIONS

UNITS

MIN

TYP

MAX

Digital feedthrough

2

nV/s

Total harmonic distortion

–105

dB

Output spot noise voltage

f = 1 kHz, BW = 1 Hz

12

nV/

√Hz

Table 1. TERMINAL FUNCTIONS

PIN

NAME

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

Internal matching feedback resistor. Connect to external op amp output.

4

DAC reference input pin. Establishes DAC full-scale voltage. Constant input resistance versus code.

5

DAC current output. Connects to inverting terminal of external precision I/V op amp.

6

GND

Analog and digital ground.

7

Positive power supply input. Specified operating range of 2.7 V to 5.5 V.

Chip-select; active low digital input. Transfers shift register data to DAC register on rising edge. See Table 2 for

8

CS

operation.

4

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