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DAC7716SPFBR Datasheet(PDF) 1 Page - Texas Instruments

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No. de pieza DAC7716SPFBR
Descripción Electrónicos  Quad 12-Bit High-Accuracy 짹16V Output Serial Input DIGITAL-TO-ANALOG CONVERTER
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

DAC7716SPFBR Datasheet(HTML) 1 Page - Texas Instruments

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DAC7716
DAC7716
1
FEATURES
DESCRIPTION
APPLICATIONS
Power-Down
ControlLogic
CS
SCLK
SDI
SDO
IOV
DD
RST
UNI/BIP-A
UNI/BIP-B
LDAC
GPIO-0
GPIO-1
AIN
DAC7716
ReferenceBufferA
V
MON
R
-0
FB1
R
-0
FB2
V
-0
OUT
SGND-0
12-BitDAC
SPI
Shift
Register
Input
Control
Logic
Control
Logic
DGND
DV
DD
DACRegister0
ZeroRegister0
GainRegister0
AGND
AV
DD
AV
SS
REF-A
REFGND-A
Analog
Monitor
ReferenceBufferB
REF-B
REFGND-B
R
-1
FB1
R
-1
FB2
V
-1
OUT
SGND-1
12-BitDAC
DACRegister1
ZeroRegister1
GainRegister1
R
-2
FB1
R
-2
FB2
V
-2
OUT
SGND-2
12-BitDAC
DACRegister2
ZeroRegister2
GainRegister2
R
-3
FB1
R
-3
FB2
V
-3
OUT
SGND-3
12-BitDAC
DACRegister3
ZeroRegister3
GainRegister3
CommandRegister
DAC7716
www.ti.com ........................................................................................................................................... SBAS463A – AUGUST 2009 – REVISED SEPTEMBER 2009
Quad, 12-Bit, High-Accuracy, ±16V Output, Serial Input
DIGITAL-TO-ANALOG CONVERTER
2345
• Bipolar Output: Up to ±16V
The DAC7716 is a high-accuracy, quad-channel,
12-bit digital-to-analog converter (DAC) that operates
• Unipolar Output: 0V to +20V
from supply voltages of ±5V to ±18V in bipolar output
• 12-Bit Monotonic
mode, and from ±5V to +24V/–12V in unipolar mode.
• Relative Accuracy: 1 LSB Max
With a 5V reference, the DAC7716 can be configured
• Low Zero and Gain Errors
to output ±10V, ±5V, 0V to 20V, or 0V to 10V. The
DAC7716 provides 12-bit monotonicity, excellent
Before User Calibration: 0.5 LSB
integral nonlinearity (INL) error of ±1 LSB, low glitch,
After User Calibration:
and low noise over the operating temperature range
0.0078 LSB Zero Error, 0.0625 LSB Gain
of –40°C to +105°C. This device is trimmed in
Error
production for very low zero and gain errors. In
addition,
the
DAC7716
implements
a
• Low Noise: 60nV/√Hz
user-programmable system-level calibration function
• Settling Time: 6µs
to achieve ±0.0078 LSB zero error and ±0.0625 LSB
• Configurable Gain: x2/x4
gain error.
• Analog Output Monitor
The DAC7716 has integrated reference buffers and
• Power-Down Mode
output buffers. It features a standard high-speed
1.8V, 3V, or 5V serial peripheral interface (SPI) that
• SPI™: Up to 50MHz, 1.8V/3V/5V Logic
operates
at
clock
rates
of
up
to
50MHz
to
• Daisy-Chain Mode
communicate with a DSP or microprocessor. The four
• Operating Temperature: –40°C to +105°C
DAC
channels
and
the
auxiliary
registers
are
addressed with four address bits. The device features
• Packages: QFN-40 (6x6mm), TQFP-48 (7x7mm)
double-buffered
interface
logic
for
simultaneous
updates of all DACs. An asynchronous load input
(LDAC) transfers data from the input data register to
• Automatic Test Equipment
the DAC latch, and the contents of the DAC latch set
• Instrumentation
the output voltage. The asynchronous RST input sets
• Industrial Process Control
the output of all four DACs to 0V. The VMON pin is an
analog monitor output that multiplexes the individual
• Communications
DAC outputs or the AIN pin.
The DAC7716 is pin-compatible with the DAC8734
(16-bit) and the DAC8234 (14-bit).
1
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.
2
DSP is a trademark of Texas Instruments.
3
SPI, QSPI are trademarks of Motorola Inc.
4
Microwire is a trademark of National Semiconductor.
5
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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