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DAC7634EB Schematic ( PDF Datasheet ) - Burr-Brown Corporation

Teilenummer DAC7634EB
Beschreibung 16-BIT/ QUAD VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER
Hersteller Burr-Brown Corporation
Logo Burr-Brown Corporation Logo 




Gesamt 27 Seiten
DAC7634EB Datasheet, Funktion
BurrĆBrown Products
from Texas Instruments
DAC7634
SBAS134A – JULY 2004 – REVISED AUGUST 2004
16-BIT, QUAD VOLTAGE OUTPUT
DIGITAL-TO-ANALOG CONVERTER
FEATURES
Low Power: 10 mW
Unipolar or Bipolar Operation
Settling Time: 10 µs to 0.003%
15-Bit Linearity and Monotonicity:
–40°C to 85°C
Programmable Reset to Mid-Scale
or Zero-Scale
Double-Buffered Data Inputs
APPLICATIONS
Process Control
Closed-Loop Servo-Control
Motor Control
Data Acquisition Systems
DAC-Per-Pin Programmers
DAC7634
VDD
VSS
VCC
SDI
SDO
Shift
Register
Input
Register A
Input
Register B
CS
CLOCK
RST
RESTSEL
LDAC
LOAD
Control
Logic
Input
Register C
Input
Register D
DESCRIPTION
The DAC7634 is a 16-bit, quad voltage output, digital-
to-analog converter with specified 15-bit monotonic
performance over the specified temperature range. It
accepts 24-bit serial input data, has double-buffered
DAC input logic (allowing simultaneous update of all
DACs), and provides a serial data output for
daisy-chaining multiple DACs. Programmable asyn-
chronous reset clears all registers to a mid-scale
code of 8000H or to a zero-scale of 0000H. The
DAC7634 can operate from a single 5-V supply or
from 5-V and –5 V supplies.
Low power and small size per DAC make the
DAC7634 ideal for automatic test equipment,
DAC-per-pin programmers, data acquisition systems,
and closed-loop servo-control. The DAC7634 is avail-
able in a 48-lead SSOP package and offers specifi-
cations over the –40°C to 85°C temperature range.
VREF L
VREF H
AB Sense VREFL AB VREFH AB AB Sense
DAC
Register A
DAC
Register B
DAC
Register C
DAC
Register D
DAC A
DAC B
DAC C
DAC D
VOUTA
VOUTA Sense
VOUTB
VOUTB Sense
VOUTC
VOUTC Sense
VOUTD
VOUTD Sense
AGND
DGND
VREF L VREFL CD VREFH CD VREFH
CD Sense
CD Sense
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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004, Texas Instruments Incorporated






DAC7634EB Datasheet, Funktion
DAC7634
SBAS134A – JULY 2004 – REVISED AUGUST 2004
PIN CONFIGURATION
NC 1
NC 2
SDI 3
DGND 4
CLK 5
DGND 6
LDAC 7
DGND 8
LOAD 9
DGND 10
CS 11
DGND 12
SDO 13
DGND 14
RSTSEL 15
DGND 16
RST 17
DGND 18
NC 19
NC 20
DGND 21
DGND 22
VDD 23
VDD 24
DAC7634
48 VOUTA Sense
47 VOUTA
46 AGND
45 VSS
44 VREFL AB Sense
43 VREFL AB
42 VREFH AB
41 VREFH AB Sense
40 VOUTB Sense
39 VOUTB
38 VOUTC Sense
37 VOUTC
36 VREFH CD Sense
35 VREFH CD
34 VREFL CD
33 VREFL CD Sense
32 VOUTD Sense
31 VOUTD
30 VSS
29 VSS
28 AGND
27 AGND
26 VCC
25 VCC
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DAC7634EB pdf, datenblatt
DAC7634
SBAS134A – JULY 2004 – REVISED AUGUST 2004
www.ti.com
TYPICAL PERFORMANCE CURVES: VSS = –5 V
At TA = 25°C, VDD = VCC = 5 V, VREFH = 2.5 V, VREFL = 0 V, representative unit, unless otherwise specified.
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC A, 25°C)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0000H 2000H
4000H 6000H
8000H
A000H C000H
E000H FFFFH
Digital Input Code
Figure 26.
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC C, 25°C)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0000H
2000H
4000H 6000H
8000H
A000H C000H
E000H FFFFH
Figure 28.
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC B, 25°C)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0000H 2000H
4000H 6000H
8000H
A000H C000H
E000H FFFFH
Digital Input Code
Figure 27.
LINEARITY ERROR AND
DIFFERENTIAL LINEARITY ERROR vs CODE
(DAC D, 25°C)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0000H 2000H
4000H 6000H
8000H
A000H C000H
E000H FFFFH
Digital Input Code
Figure 29.
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