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DAC7564ICPWG4 Scheda tecnica(PDF) 1 Page - Texas Instruments

Il numero della parte DAC7564ICPWG4
Spiegazioni elettronici  12-Bit, Quad Channel, Ultra-Low Glitch, Voltage Output DIGITAL-TO-ANALOG CONVERTER
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

DAC7564ICPWG4 Scheda tecnica(HTML) 1 Page - Texas Instruments

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DAC7564
24-BitShiftRegister
SYNC
SCLK
D
IN
DataBufferA
DACRegisterA
DataBufferB
DACRegisterB
DataBufferC
DACRegisterC
DataBufferD
DACRegisterD
AV
DD
V
REF
REF
H/V
OUT
Buffer
Control
Register
Control
ControlLogic
2.5V
Reference
Power-Down
ControlLogic
12-BitDAC
12-BitDAC
12-BitDAC
12-BitDAC
V
A
OUT
V
B
OUT
V
C
OUT
V
D
OUT
GND
LDAC
ENABLE
A1
A0
DAC7564
IOV
DD
V
REFL
DAC7564
www.ti.com
SBAS413B
– FEBRUARY 2008 – REVISED MAY 2011
12-Bit, Quad Channel, Ultra-Low Glitch, Voltage Output
DIGITAL-TO-ANALOG CONVERTER with 2.5V, 2ppm/
°C Internal Reference
Check for Samples: DAC7564
1
FEATURES
DESCRIPTION
The
DAC7564
is
a
low-power,
voltage-output,
234
Relative Accuracy: 0.5LSB
four-channel, 12-bit digital-to-analog converter (DAC).
Glitch Energy: 0.15nV-s
The
device
includes
a
2.5V,
2ppm/
°C
internal
Internal Reference:
reference (enabled by default), giving a full-scale
output voltage range of 2.5V. The internal reference
– 2.5V Reference Voltage (enabled by default)
has an initial accuracy of 0.02% and can source up to
– 0.004% Initial Accuracy (typ)
20mA at the VREFH/VREFOUT pin. The device is
– 2ppm/°C Temperature Drift (typ)
monotonic,
provides
very
good
linearity,
and
minimizes undesired code-to-code transient voltages
– 5ppm/°C Temperature Drift (max)
(glitch). The DAC7564 uses a versatile 3-wire serial
– 20mA Sink/Source Capability
interface that operates at clock rates up to 50MHz.
Power-On Reset to Zero-Scale
The interface is compatible with standard SPI
™,
QSPI
™, Microwire™, and digital signal processor
Ultra-Low Power Operation: 1mA at 5V
(DSP) interfaces.
Wide Power-Supply Range: +2.7V to +5.5V
The DAC7564 incorporates a power-on-reset circuit
12-Bit Monotonic Over Temperature Range
that ensures the DAC output powers up at zero-scale
Settling Time: 10
μs to ±0.024% Full-Scale
and remains there until a valid code is written to the
Range (FSR)
device. The device contains a power-down feature,
Low-Power Serial Interface with
accessed over the serial interface, that reduces the
Schmitt-Triggered Inputs: Up to 50MHz
current consumption of the device to 1.3
μA at 5V.
Power consumption is 2.9mW at 3V, reducing to
On-Chip Output Buffer Amplifier with
1.5
μW
in
power-down
mode.
The
low
power
Rail-to-Rail Operation
consumption, internal reference, and small footprint
1.8V to 5.5V Logic Compatibility
make this device ideal for portable, battery-operated
Temperature Range:
–40°C to +105°C
equipment.
The DAC7564 is drop-in and functionally compatible
APPLICATIONS
with the DAC8164 and DAC8564, and functionally
compatible
with
the
DAC7565,
DAC8165
and
Portable Instrumentation
DAC8565. All these devices are available in a
Closed-Loop Servo-Control
TSSOP-16 package.
Process Control, PLCs
Data Acquisition Systems
Programmable Attenuation
PC Peripherals
RELATED
DEVICES
16-BIT
14-BIT
12-BIT
Pin and
Functionally
DAC8564
DAC8164
DAC7564
Compatible
Functionally
DAC8565
DAC8165
DAC7565
Compatible
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
SPI, QSPI are trademarks of Motorola, Inc.
3
Microwire is a trademark of National Semiconductor.
4
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright
© 2008–2011, 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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