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Texas Instruments DAC7632 User Guide

Summary

The DAC7632 is a low-power, 16-bit dual channel Digital-to-Analog Converter (DAC) designed for high precision in demanding industrial environments. This device features double-buffered data inputs and offers monotonic performance across wide operating temperature ranges (-40°C to +85°C). The comprehensive manual details electrical characteristics, absolute maximum ratings, and operational specifications. It is essential reading for engineers implementing advanced solutions in process control, data acquisition systems, closed-loop servo-control, and motor control applications seeking reliable, accurate voltage output performance.

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DAC7632

DAC7632

SBAS234 – FEBRUARY 2002

16-Bit, Dual Voltage Output DIGITAL-TO-ANALOG CONVERTER

FEATURES DESCRIPTION LOW POWER: 4m W The DAC7632 is a 16-bit, dual channel, voltage output, Digital-to-Analog Converter (DAC) which provides 15-bit

UNIPOLAR OR BIPOLAR OPERATION

monotonic performance over the specified temperature range.

SETTLING TIME: 10µs to ±0.003% FSR

The device accepts 24-bit serial input data, has double-

15-BIT LINEARITY AND MONOTONICITY: buffered DAC input logic (allowing simultaneous update of –40°C to +85°C both DACs), and provides a serial data output for daisy-

PROGRAMMABLE RESET TO MID-SCALE chaining multiple devices. A programmable asynchronous OR ZERO-SCALE reset clears all registers to a mid-scale code of 8000H or to a zero-scale code of 0000H. The DAC7632 can operate from

DOUBLE-BUFFERED DATA INPUTS

a single +5V supply or from +5V and –5V supplies, providing an output range of 0V to +2.5V or –2.5V to +2.5V, respec-

APPLICATIONS tively.

Low power and small size per DAC make the DAC7632

● PROCESS CONTROL

ideal for industrial process control, data acquisition sys-

● CLOSED-LOOP SERVO-CONTROL

tems, and closed-loop servo-control. The DAC7632 is avail-

● MOTOR CONTROL

able in an LQFP-32 package and specified over a –40°C to ● DATA ACQUISITION SYSTEMS +85°C temperature range.

● DAC-PER-PIN PROGRAMMERS

VREFL VREFH VCCVSSVDD Sense VREFL VREFH Sense

DAC7632

SDI Input DAC

DAC A

Register AShift Register A

VOUTA

Register

VOUTA Sense

CLK Input DAC

DAC B

Register B Register B

VOUTB

RST Control

Logic

RSTSEL

VOUTB Sense

AGND DGND

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date. Copyright © 2002, Texas Instruments Incorporated Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

www.ti.com

Page Summary Contents For Texas Instruments DAC7632 User Guide

Page 1 DAC7632 DAC7632 SBAS234 – FEBRUARY 2002 16-Bit, Dual Voltage Output DIGITAL-TO-ANALOG CONVERTER FEATURES DESCRIPTION LOW POWER: 4m W The DAC7632 is a 16-bit, dual channel, voltage output, Digital-to-A...
Page 2 ABSOLUTE MAXIMUM RATINGS(1) ELECTROSTATIC VCC and VDD to VSS –0.3V to 11V DISCHARGE SENSITIVITY VCC and VDD to GND –0.3V to 5.5V VREFL to VSS –0.3V to (VCC – VSS) This integrated circuit can be damage...
Page 3 ELECTRICAL CHARACTERISTICS (Dual Supply) At TA = TMIN to TMAX, VDD = VCC = +5V, VSS = –5V, VREFH = +2.5V, and VREFL = –2.5V, unless otherwise noted. DAC7632VF DAC7632VFB PARAMETER CONDITIONS MIN TYP M...
Page 4 SPECIFICATIONS (Dual Supply) At TA = TMIN to TMAX, VDD = VCC = +5V, VSS = 0V, VREFH = +2.5V, and VREFL = 0V, unless otherwise noted. DAC7632VF DAC7632VFB PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX U...
Page 5 PIN CONFIGURATION Top View SSOP VCC VSS AGND LOAD AGND LDAC NC RST DAC7632 DGND RSTSEL DGND CS VDD SDI SDO CLK en se en se NC = No Connection en se en se PIN DESCRIPTIONS PIN NAME DESCRIPTION PIN NAME...
Page 6 TYPICAL CHARACTERISTICS: VSS = 0V LE (L LE (L LE (L LE (L LE (L LE (L At TA = +25°C, VDD = VCC = +5V, VSS = 0V, VREFH = +2.5V, VREFL = 0V, representative unit, unless otherwise specified. LINEARITY ER...
Page 7 TYPICAL CHARACTERISTICS: VSS = 0V (Cont.) At TA = +25°C, VDD = VCC = +5V, VSS = 0V, VREFH = +2.5V, VREFL = 0V, representative unit, unless otherwise specified. ur re nt er o- ca le rr or ZERO-SCALE ER...
Page 8 TYPICAL CHARACTERISTICS: VSS = 0V (Cont.) At TA = +25°C, VDD = VCC = +5V, VSS = 0V, VREFH = +2.5V, VREFL = 0V, representative unit, unless otherwise specified. oi se ol ta ge µV /d iv ut pu t V ol ta ...
Page 9 TYPICAL CHARACTERISTICS: VSS = 0V (Cont.) At TA = +25°C, VDD = VCC = +5V, VSS = 0V, VREFH = +2.5V, VREFL = 0V, representative unit, unless otherwise specified. LE (L LE (L LE (L LE (L Lo gi up pl ur r...
Page 10 TYPICAL CHARACTERISTICS: VSS = –5V (Cont.) ur re nt LE (L LE (L At TA = +25°C, VDD = VCC = +5V, VSS = –5V, VREFH = +2.5V, VREFL = –2.5V, representative unit, unless otherwise specified. ip ol ar er rr...
Page 11 TYPICAL CHARACTERISTICS: VSS = –5V (Cont.) At TA = +25°C, VDD = VCC = +5V, VSS = –5V, VREFH = +2.5V, VREFL = –2.5V, representative unit, unless otherwise specified. eg at iv ul l-S ca le rr or ut pu t...
Page 12 TYPICAL CHARACTERISTICS: VSS = –5V (Cont.) At TA = +25°C, VDD = VCC = +5V, VSS = –5V, VREFH = +2.5V, VREFL = –2.5V, representative unit, unless otherwise specified. ut pu t V ol ta ge /d iv OUTPUT VOL...
Page 13 0V to +2.5V0V to +2.5V VOUTA VREFL VREFH VOUTB Sense Sense VOUTA VREFL VREFH VOUTB Sense Sense +5V VCC VSS 1µF 0.1µF AGND LOAD LOAD INPUT REGISTER(S) AGND LDAC LOAD DAC REGISTERS NC DAC7632 RST RESET ...
Page 14 ANALOG OUTPUTS When VSS = –5V (dual-supply operation), the output amplifier can swing to within 2.25V of the supply rails over the –40°C VOUTA to +85°C temperature range. When VSS = 0V (single-supply ...
Page 15 VOUTA VOUT OPA2350 VOUTA Sense LE (L LE (L VREFL Sense DAC7632 VREFL 98kΩ VREFH +V VREFH Sense VOUTB Sense VOUTB VOUT FIGURE 6. Single-Supply Buffered Reference with a Reference Low of 50m V. LINEARIT...
Page 16 VOUTA VOUT LE (L LE (L VOUTA Sense VREFL Sense OPA2350 DAC7632 VREFL VREFH 100Ω VREFH Sense VOUTB Sense VOUTB VOUT FIGURE 10. Single-Supply Buffered VREFH. LINEARITY ERROR AND LINEARITY ERROR AND DIFF...
Page 17 SERIAL DATA INPUT B23 B22 B21 B20 B19 B18 B17 B16 B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 DACSEL D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0QUICK INPUT DAC DACSEL CS RST RSTSEL...
Page 18 DIGITAL TIMING DIGITALLY-PROGRAMMABLE CURRENT SOURCE Figure 15 and Table III provide detailed timing for the digital The DAC7632 offers a unique set of features that allows a interface of the DAC7632....
Page 19 SYMBOL DESCRIPTION MIN MAX UNITS t DS Data Valid to CLK Rising ns t DH Data Held Valid after CLK Rises ns t CH CLK HIGH ns t CL CLK LOW ns t CSS CS LOW to CLK Rising ns t CSH CLK HIGH to CS Rising ns ...
Page 20 PACKAGE DRAWING MTQF002B – JANUARY 1995 – REVISED MAY 2000 VF (S-PQFP-G32) PLASTIC QUAD FLATPACK 0,13 NOM 5,60 TYP 7,20 SQ 6,80 Gage Plane 9,20 SQ 8,80 0,05 MIN 0,75 Seating Plane 0,45 1,60 MAX 0,10 N...
Page 21 PACKAGE OPTION ADDENDUM www.ti.com 3-Oct-2005 PACKAGING INFORMATION Orderable Device Status Package Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Type Drawing Qty DAC7632VFBR ACTIVE LQF...
Page 22 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and servic...

Manual Details

Brand Texas Instruments
Pages 22
File Size 867.22 KB
Published July 22, 2026
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Frequently Asked Questions

What is the operating temperature range for the DAC7632?

The device operates in a temperature range of -40°C to +85°C.

Does the DAC7632 support dual-channel outputs?

Yes, it is a 16-bit, dual channel voltage output Digital-to-Analog Converter (DAC).

How does the device accept serial input data?

The DAC7632 accepts 24-bit serial input data and provides a separate serial data output for daisy-chaining.

What are the recommended power supply options?

It can operate from a single +5V supply or from both +5V and –5V supplies.