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DAC7725NB 数据手册 PDF ( 12-Bit Quad Voltage Output DIGITAL-TO-ANALOG CONVERTER )

零件编号 DAC7725NB
描述 12-Bit Quad Voltage Output DIGITAL-TO-ANALOG CONVERTER
制造商 Burr-Brown Corporation
LOGO Burr-Brown Corporation LOGO 

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DAC7725NB 数据手册, 描述, 功能
®
DAC7724
DAC7725
DAC7724
DAC7725
For most current data sheet and other product
information, visit www.burr-brown.com
12-Bit Quad Voltage Output
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q LOW POWER: 250mW max
q SINGLE SUPPLY OUTPUT RANGE: +10V
q DUAL SUPPLY OUTPUT RANGE: ±10V
q SETTLING TIME: 10µs to 0.012%
q 12-BIT LINEARITY AND MONOTONICITY:
–40°C to +85°C
q RESET TO MID-SCALE (DAC7724) OR
ZERO-SCALE (DAC7725)
q DATA READBACK
q DOUBLE-BUFFERED DATA INPUTS
APPLICATIONS
q PROCESS CONTROL
q CLOSED-LOOP SERVO-CONTROL
q MOTOR CONTROL
q DATA ACQUISITION SYSTEMS
GND
DB0-DB11
12 I/O
Buffer
Input
Register A
DESCRIPTION
The DAC7724 and DAC7725 are 12-bit quad voltage
output digital-to-analog converters with guaranteed
12-bit monotonic performance over the specified tem-
perature range. They accept 12-bit parallel input data,
have double-buffered DAC input logic (allowing simul-
taneous 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
(DAC7724) or to a zero-scale of 000H (DAC7725). The
DAC7724 and DAC7725 can operate from a single
+15V supply, or from +15V and –15V supplies.
Low power and small size per DAC make the DAC7724
and DAC7725 ideal for automatic test equipment,
DAC-per-pin programmers, data acquisition systems,
and closed-loop servo-control. The DAC7724 and
DAC7725 are available in a PLCC-28 or a SO-28
package, and offer guaranteed specifications over the
–40°C to +85°C temperature range.
VDD
VCC VREFH
DAC
Register A
DAC A
VOUTA
Input
Register B
DAC
Register B
DAC B
A0
A1
R/W
CS
Control
Logic
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1999 Burr-Brown Corporation
PDS-1517B
Printed in U.S.A. April, 2000




DAC7725NB pdf, 数据表
TYPICAL PERFORMANCE CURVES: VSS = 0V (Cont.)
At TA = +25°C, VCC = +15V, VDD = +5V, VSS = 0V, VREFH = +10V, VREFL = 0V, representative unit, unless otherwise specified.
1000
100
OUTPUT NOISE vs FREQUENCY
Code 004H
Code FFFH
10
0 0.1 1 10 100 1000 10000
Frequency (kHz)
LOGIC SUPPLY CURRENT
vs LOGIC INPUT LEVEL FOR DATA BITS
5
4
3
2
1
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Logic Input Level for Data Bits (V)
16
14
12
10
8
6
4
2
0
0.01
OUTPUT VOLTAGE vs RLOAD
Source
Sink
0.1 1 10
RLOAD (kW)
100
SINGLE SUPPLY CURRENT LIMIT vs INPUT CODE
20
Short to Ground
15
10
5
0
–5
–10
–15 Short to VCC
–20
000H
200H
400H
600H 800H A00H
Digital Input Code
C00H
E00H
FFFH
POWER SUPPLY REJECTION RATIO vs FREQUENCY
0
–10
–20
–30
–40
–50 +15V
–60
–70
–80
–90 +5V
–100
–110
–120
101 102 103 104 105 106
Frequency (Hz)
®
DAC7724, 7725
8





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零件编号描述制造商
DAC7725N12-Bit Quad Voltage Output DIGITAL-TO-ANALOG CONVERTERBurr-Brown Corporation
Burr-Brown Corporation
DAC7725NB12-Bit Quad Voltage Output DIGITAL-TO-ANALOG CONVERTERBurr-Brown Corporation
Burr-Brown Corporation

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