DAC7654
SBAS263 鈭?NOVEMBER 2003
16 Bit, Quad Voltage Output
Digital to Analog Converter
FEATURES
D
Low Glitch: 1nV-s (typ)
D
Low Power: 18mW
D
Unipolar or Bipolar Operation
D
Settling Time: 12碌s to 0.003%
D
16-Bit Linearity and Monotonicity:
D
D
D
D
D
鈥?0擄C to +85擄C
Programmable Reset to Mid-Scale or
Zero-Scale
Double-Buffered Data Inputs
Internal Bandgap Voltage Reference
Power-On Reset
3V to 5V Logic Interface
DESCRIPTION
The DAC7654 is a 16-bit, quad voltage output,
digital-to-analog converter (DAC) with 16-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 asynchronous reset clears
all registers to a mid-scale code of 8000h or to a zero-scale
of 0000h. The DAC7654 can operate from a single +5V
supply or from +5V and 鈥?V supplies.
Low power and small size per DAC make the DAC7654
ideal for automatic test equipment, DAC-per-pin
programmers, data acquisition systems, and closed-loop
servo-control. The DAC7654 is available in an LQFP
package and is specified for operation over the 鈥?0擄C to
+85擄C temperature range.
IO V
D D
V
DD
V
SS
V
CC
APPLICATIONS
D
Process Control
D
Closed-Loop Servo-Control
D
Motor Control
D
Data Acquisition Systems
D
DAC-per-Pin Programmers
SDI
DAC7654
V
REFH
A and B
V
REFL
V
REFH
Bandgap
Voltage Reference
V
REFL
A and B
V
OUTA
Sense 2
Shift
Register
SDO
Input
Register A
DAC
Register A
DAC A
V
OUTA
Sense 1
V
OUTA
OFSR1A
OFSR2A
V
OUTB
Sense 2
Input
Register B
DAC
Register B
DAC B
V
OUTB
Sense 1
V
OUTB
OFSR1B
OFSR2B
V
OUTC
Sense 2
CS
CLOCK
RST
RSTSEL
LDAC
LOAD
OFSR1D
OFSR2D
V
REFL
C
Input
Register C
DAC
Register C
DAC C
V
OUTC
Sense 1
V
OUTC
OFSR1C
OFSR2C
V
OUTD
Sense 2
Control
Logic
Input
Register D
DAC
Register D
DAC D
V
OUTD
Sense 1
V
OUTD
and D
V
REFH
C and D
A GN D
D GN D
This device has ESD-CDM sensitivity and special handling precautions must be taken.
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.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright
錚?/div>
2003, Texas Instruments Incorporated
www.ti.com
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