8408 datasheet(2/20 Pages) MAXWELL

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Quad 8-Bit Multiplying CMOS

D/A Converter with Memory

8408

08.20.02 REV 1

TABLE 1. 8408 PINOUT DESCRIPTION

SYMBOL

DESCRIPTION

Supply Voltage

REFA

REF Voltage (A)

FBA

REF Feedback (A)

OUT 1A

Current Output (1A)

OUT 2A/IOUT 2B

Current Output (2A/2B)

OUT 1B

Current Output (1B)

FBB

REF Feedback (B)

REFB

REF Voltage (B)

DB0 (LSB)

Data Bit 0, least significant bit

10 - 15

DB 1 - 6

Data bits 1-6

DB 7 (MSB)

Data Bit 7, most significant bit

A/B

R/W

Read/Write

19 - 20

DS1 - 2

Data Strobes

REFD

REF Voltage (D)

FBD

REF Feedback (D)

OUT 1D

Current Output (1D)

OUT 2C/IOUT 2D

Current Output (2C/2D)

OUT 1C

Current Output (1C)

FBC

REF Feedback (C)

REFC

REF Voltage (C)

DGND

Digital Ground

TABLE 2. 8408 ABSOLUTE MAXIMUM RATINGS

PARAMETER

SYMBOL

MIN

MAX

UNIT

DD to IOUT 2A, IOUT 2B, IOUT 2C, IOUT 2D

DD to DGND

OUT 1A, IOUT 1B, IOUT 1C, IOUT 1D to DGND

-0.3

DD + 0.3

RFA, RRFB, VRFC, RRFD to IOUT

±25

OUT 2A, IOUT 2B, IOUT 2C, IOUT 2D to DGND

-0.3

DD + 0.3

DB0 through DB7 to DGND

-0.3

DD + 0.3

Control Logic Input Voltage to DGND

-0.3

DD + 0.3

REFA, VREFB, VREFC, VREFD to IOUT 2A, IOUT 2B, IOUT 2C, IOUT 2D

±25

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