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DAC7625P Schematic ( PDF Datasheet ) - Burr-Brown Corporation

Teilenummer DAC7625P
Beschreibung 12-Bit Quad Voltage Output DIGITAL-TO-ANALOG CONVERTER
Hersteller Burr-Brown Corporation
Logo Burr-Brown Corporation Logo 




Gesamt 11 Seiten
DAC7625P Datasheet, Funktion
®
DAC7625
DAC7624
DAC7624
DAC7625
12-Bit Quad Voltage Output
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q LOW POWER: 20mW
q UNIPOLAR OR BIPOLAR OPERATION
q SETTLING TIME: 10µs to 0.012%
q 12-BIT LINEARITY AND MONOTONICITY:
–40°C to +85°C
q RESET TO MID-SCALE (DAC7624) OR
ZERO-SCALE (DAC7625)
q DATA READBACK
q DOUBLE-BUFFERED DATA INPUTS
APPLICATIONS
q PROCESS CONTROL
q ATE PIN ELECTRONICS
q CLOSED-LOOP SERVO-CONTROL
q MOTOR CONTROL
q DATA ACQUISITION SYSTEMS
q DAC-PER-PIN PROGRAMMERS
GND
12 I/O
DB0-DB11
Buffer
Input
Register A
DESCRIPTION
The DAC7624 and DAC7625 are 12-bit quad voltage
output digital-to-analog converters with guaranteed 12-
bit monotonic performance over the specified tempera-
ture range. They accept 12-bit parallel input data, have
double-buffered DAC input logic (allowing simulta-
neous update of all DACs), and provide a readback
mode of the internal input registers. An asynchronous
reset clears all registers to a mid-scale code of 800H
(DAC7624) or to a zero-scale of 000H (DAC7625). The
DAC7624 and DAC7625 can operate from a single +5V
supply or from +5V and –5V supplies.
Low power and small size per DAC make the DAC7624
and DAC7625 ideal for automatic test equipment,
DAC-per-pin programmers, data acquisition systems,
and closed-loop servo-control. The DAC7624 and
DAC7625 are available in a 28-pin plastic double-
wide or a 28-lead SOIC package, and offer guaranteed
specifications over the –40°C to +85°C temperature
range.
VDD VREFH
DAC
Register A
DAC A
VOUTA
Input
Register B
DAC
Register B
DAC B
A0
A1 Control
R/W Logic
CS
Input
Register C
DAC
Register C
DAC C
Input
Register D
DAC
Register D
DAC D
VOUTB
VOUTC
VOUTD
RESET LDAC VREFL
VSS
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1997 Burr-Brown Corporation
PDS-11419C
DAC762Pr4in/te7d 6in 2U.5S.A. April, 2000
®






DAC7625P Datasheet, Funktion
TYPICAL PERFORMANCE CURVES: VSS = 0V (CONT)
At TA = +25°C, VDD = +5V, VSS = 0V, VREFH = +2.5V, VREFL = 0V, representative unit, unless otherwise specified.
0.50
LINEARITY ERROR vs CODE
(DAC C, –40°C and +85°C)
0.25
0.00
–0.25
+85°C
–0.50
0.50
0.25
0.00
–0.25
–40°C
–0.50
000H 200H
400H
600H 800H A00H
Digital Input Code
C00H
E00H FFFH
LINEARITY ERROR vs CODE
(DAC D, –40°C and +85°C)
0.50
0.25
0.00
–0.25
+85°C
–0.50
0.50
0.25
0.00
–0.25
–40°C
–0.50
000H 200H
400H
600H 800H A00H
Digital Input Code
C00H
E00H FFFH
ZERO-SCALE ERROR vs TEMPERATURE
(Code 010H)
6
5
4
DAC D
3
2
1 DAC C
DAC A
DAC B
0
–1
–2
–40
–20
0 20 40 60
Temperature (°C)
80
100
FULL-SCALE ERROR vs TEMPERATURE
(Code FFFH)
6
5
4 DAC D
3
DAC A
2
DAC C
1
DAC B
0
–1
–2
–40
–20
0 20 40 60
Temperature (°C)
80
100
®
DAC7624/7625
6

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