DataSheet.es    


PDF DAC7641 Data sheet ( Hoja de datos )

Número de pieza DAC7641
Descripción 16-Bit/ Voltage Output DIGITAL-TO-ANALOG CONVERTER
Fabricantes Burr-Brown Corporation 
Logotipo Burr-Brown Corporation Logotipo



Hay una vista previa y un enlace de descarga de DAC7641 (archivo pdf) en la parte inferior de esta página.


Total 18 Páginas

No Preview Available ! DAC7641 Hoja de datos, Descripción, Manual

®
DAC7641 ®
DAC7641
For most current data sheet and other product
information, visit www.burr-brown.com
16-Bit, Voltage Output
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q LOW POWER: 2.5mW
q UNIPOLAR OR BIPOLAR OPERATION
q SETTLING TIME: 10µs to 0.003%
q 15-BIT LINEARITY AND MONOTONICITY:
–40°C to +85°C
q PROGRAMMABLE RESET TO MID-SCALE
OR ZERO-SCALE
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
DESCRIPTION
The DAC7641 is a 16-bit, voltage output digital-to-
analog converter (DAC) with guaranteed 15-bit mono-
tonic performance over the specified temperature range.
It accepts 16-bit parallel input data, has double-buffered
DAC input logic (allowing asynchronous update), and
provides a readback mode of the internal input registers.
Programmable asynchronous reset clears all registers to
a mid-scale code of 8000H or to a zero-scale of 0000H.
The DAC7641 can operate from a single +5V supply or
from +5V and –5V supplies.
Low power and small size per DAC make the DAC7641
ideal for automatic test equipment, DAC-per-pin
programmers, data acquisition systems, and closed-
loop servo-control. The DAC7641 is available in a
TQFP-32 package, and offers guaranteed specifica-
tions over the –40°C to +85°C temperature range.
VDD VSS VCC
VREFL
Sense
VREFL
VREFH
VREFH
Sense
DATA I/O
16 I/O
Buffer
CS Control
R/W Logic
Input
Register
DAC
Register
AGND DGND RST RSTSEL LDAC
DAC
VOUT
VOUT Sense
DAC7641
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
© 2000 Burr-Brown Corporation
PDS-11532A
DAPrCint7ed6in4U1.S.A. June, 2000
®

1 page




DAC7641 pdf
PIN CONFIGURATION
DB15 1
DB14 2
DB13 3
DB12 4
DB11 5
DB10 6
DB9 7
DB8 8
DAC7641
24 VSS
23 VOUT Sense
22 VOUT
21 RSTSEL
20 RST
19 LDAC
18 R/W
17 CS
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
1
DB15
Data Bit 15, MSB
2
DB14
Data Bit 14
3
DB13
Data Bit 13
4
DB12
Data Bit 12
5
DB11
Data Bit 11
6
DB10
Data Bit 10
7
DB9
Data Bit 9
8
DB8
Data Bit 8
9
DB7
Data Bit 7
10
DB6
Data Bit 6
11
DB5
Data Bit 5
12
DB4
Data Bit 4
13
DB3
Data Bit 3
14
DB2
Data Bit 2
15
DB1
Data Bit 1
16
DB0
Data Bit 0, LSB
17 CS Chip Select, active low.
18
R/W
Enabled by CS, controls data read and write from the
input register.
PIN
19
20
21
22
23
24
25
26
27
28
29
30
31
32
NAME
LDAC
RST
RSTSEL
VOUT
VOUT Sense
VSS
AGND
VCC
VREFH Sense
VREFH
VREFL Sense
VREFL
DGND
VDD
DESCRIPTION
DAC Load Strobe, rising-edge triggered.
Reset, rising-edge triggered. Depending on the state
of RSTSEL, the DAC registers are set to either mid-
scale or zero.
Reset Select. Determines the action of RST. If
HIGH, a RST command will set the DAC registers to
mid-scale. If LOW, a RST command will set the DAC
registers to zero.
DAC Voltage Output
DAC Output Amplifier Inverting Input. Used to close
the feedback loop at the load.
Negative Power Supply
Analog Ground
Positive Power Supply
DAC Reference High Sense Input
DAC Reference High Input
DAC Reference Low Sense Input
DAC Reference Low Input
Digital Ground
Positive Power Supply
®
5 DAC7641

5 Page





DAC7641 arduino
TYPICAL PERFORMANCE CURVES: VSS = –5V (Cont.)
At TA = +25°C, VDD = +5V, VSS = –5V, VREFH = +2.5V, VREFL = –2.5V, representative unit, unless otherwise specified.
OUTPUT VOLTAGE vs SETTLING TIME
(+2.5V to –2.5V)
+5V
LDAC
0
Small-Signal Settling Time:
2LSB/div
Large-Signal Settling Time: 1V/div
Time (2µs/div)
THEORY OF OPERATION
The DAC7641 is a voltage output, 16-bit digital-to-analog
converter (DAC). The architecture is an R-2R ladder con-
figuration with the three MSBs segmented, followed by an
operational amplifier that serves as a buffer (see Figure 1).
The minimum voltage output (zero-scale) and maximum
voltage output (full-scale) are set by the external voltage
references VREFL and VREFH, respectively. The digital input
is a 16-bit parallel word and the DAC input register offers a
readback capability. The converters can be powered from
either a single +5V supply or a dual ±5V supply. The device
offers a reset function which immediately sets all DAC
output voltages and DAC registers to mid-scale code 8000H
or to zero-scale code 0000H. See Figures 2 and 3 for the
basic operation of the DAC7641.
R
2R 2R
2R 2R 2R 2R 2R 2R 2R
RF
VOUT Sense
VOUT
VREFH
VREFH Sense
VREFL
VREFL Sense
FIGURE 1. DAC7641 Architecture.
11
DAC7641
®

11 Page







PáginasTotal 18 Páginas
PDF Descargar[ Datasheet DAC7641.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
DAC764116-Bit/ Voltage Output DIGITAL-TO-ANALOG CONVERTERBurr-Brown Corporation
Burr-Brown Corporation
DAC764116-Bit Voltage Output Digital-to-Analog ConverterTexas Instruments
Texas Instruments
DAC7641Y16-Bit/ Voltage Output DIGITAL-TO-ANALOG CONVERTERBurr-Brown Corporation
Burr-Brown Corporation
DAC7641YB16-Bit/ Voltage Output DIGITAL-TO-ANALOG CONVERTERBurr-Brown Corporation
Burr-Brown Corporation

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar