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Número de pieza | DAC7715U | |
Descripción | Quad/ Serial Input/ 12-Bit/ Voltage Output DIGITAL-TO-ANALOG CONVERTER | |
Fabricantes | Burr-Brown Corporation | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de DAC7715U (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
No Preview Available ! DAC7715
DAC7715
SBAS140
Quad, Serial Input, 12-Bit, Voltage Output
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q LOW POWER: 250mW (max)
q UNIPOLAR OR BIPOLAR OPERATION
q SETTLING TIME: 10µs to 0.012%
q 12-BIT LINEARITY AND MONOTONICITY:
–40°C to +85°C
q DOUBLE-BUFFERED DATA INPUTS
q SMALL SO-16 PACKAGE
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
Input
Register A
SDI
Serial-to-
Parallel
Shift
Register
12
Input
Register B
Input
Register C
CLK
CS
DAC
Select
Input
Register D
DESCRIPTION
The DAC7715 is a quad, serial input, 12-bit, voltage
output Digital-to-Analog Converter (DAC) with
guaranteed 12-bit monotonic performance over the
–40°C to +85°C temperature range. An asynchronous
reset clears all registers to either mid-scale (800H) or
zero-scale (000H), selectable via the RESETSEL pin.
The individual DAC inputs are double buffered to
allow for simultaneous update of all DAC outputs.
The device can be powered from a single +15V supply
or from dual +15V and –15V supplies.
Low power and small size makes the DAC7715 ideal
for automatic test equipment, DAC-per-pin program-
mers, data acquisition systems, and closed-loop servo-
control. The device is available in a SO-16 package
and is guaranteed over the –40°C to +85°C tempera-
ture range.
VCC VREFH
DAC
Register A
DAC A
DAC
Register B
DAC B
DAC
Register C
DAC C
DAC
Register D
DAC D
VOUTA
VOUTB
VOUTC
VOUTD
LOADREG
RESETSEL RESET LOADDACS 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 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
http://www.burr-brown.com/
http://www.ti.com/
Copyright © 2000 Texas Instruments Incorporated
PDS-11572A
DAC7715Printed in U.S.A. September, 2000
®
1 page PIN CONFIGURATION—U Package
Top View
SOIC
VCC 1
VOUTD 2
VOUTC 3
VREFL 4
VREFH 5
VOUTB 6
VOUTA 7
VSS 8
DAC7715U
16 RESETSEL
15 RESET
14 LOADREG
13 LOADDACS
12 CS
11 CLK
10 SDI
9 GND
PIN DESCRIPTIONS—U Package
PIN LABEL
DESCRIPTION
1 VCC Positive Supply Voltage, +15V nominal.
2
VOUTD
DAC D Voltage Output
3
VOUTC
DAC C Voltage Output
4
VREFL
Reference Input Voltage Low. Sets minimum out-
put voltage for all DACs.
5
VREFH
Reference Input Voltage High. Sets maximum out-
put voltage for all DACs.
6
VOUTB
DAC B Voltage Output
7
VOUTA
DAC A Voltage Output
8 VSS Negative Supply Voltage, 0V or –15V nominal.
9
GND
Ground
10 SDI Serial Data Input
11 CLK Serial Data Clock
12 CS Chip Select Input
13 LOADDACS All DAC registers become transparent when
LOADDACS is LOW. They are in the latched state
when LOADDACS is HIGH.
14 LOADREG The selected input register becomes transparent
when LOADREG is LOW. It is in the latched state
when LOADREG is HIGH.
15
RESET
Asynchronous Reset Input. Sets DAC and input
registers to either zero-scale (000H) or mid-scale
(800H) when LOW. RESETSEL determines which
code is active.
16 RESETSEL When LOW, a LOW on RESET will cause the DAC
and input registers to be set to code 000H. When
RESETSEL is HIGH, a LOW on RESET will set the
registers to code 800H.
®
5 DAC7715
5 Page TYPICAL PERFORMANCE CURVES: VSS = –15V (Cont.)
At TA = +25°C, VCC = +15V, VSS = 0V, VREFH = +10V, VREFL = 0V, representative unit, unless otherwise specified.
DUAL SUPPLY CURRENT LIMIT vs INPUT CODE
SHORT TO GROUND
20
15
10
5
0
–5
–10
–15
–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 +15V
–70
–80
–90
–100
–110
–120
101 102 103 104 105 106
Frequency (Hz)
OUTPUT VOLTAGE
MID-SCALE GLITCH PERFORMANCE
BROADBAND NOISE
7FFH to 800H
800H to 7FFH
Time (1µs/div)
+5V
LOADDACS
0
Time (1ms/div)
1000
OUTPUT NOISE vs FREQUENCY
100
Noise at any code
10
0 0.1 1 10 100 1000 10000
Frequency (kHz)
11 DAC7715
®
11 Page |
Páginas | Total 17 Páginas | |
PDF Descargar | [ Datasheet DAC7715U.PDF ] |
Número de pieza | Descripción | Fabricantes |
DAC7715 | Quad/ Serial Input/ 12-Bit/ Voltage Output DIGITAL-TO-ANALOG CONVERTER | Burr-Brown Corporation |
DAC7715 | Quad Serial Input 12-Bit Voltage Output Digital-To-Analog Converter | Texas Instruments |
DAC7715U | Quad/ Serial Input/ 12-Bit/ Voltage Output DIGITAL-TO-ANALOG CONVERTER | Burr-Brown Corporation |
DAC7715U1K | Quad/ Serial Input/ 12-Bit/ Voltage Output DIGITAL-TO-ANALOG CONVERTER | Burr-Brown Corporation |
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