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| 型號： | AD5570BRS-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | DAC |
| 英文描述： | True Accuracy, 16-Bit 12 V/15 V, Serial Input Voltage Output DAC |
| 中文描述： | SERIAL INPUT LOADING, 12 us SETTLING TIME, 16-BIT DAC, PDSO16 |
| 封裝： | PLASTIC, MO-150AC, SSOP-16 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 963K |
| 代理商： | AD5570BRS-REEL7 |
True Accuracy, 16-Bit ±12 V/±15 V,
Serial Input Voltage Output DAC
AD5570
FEATURES
Full 16-bit performance
1 LSB max INL and DNL
Output voltage range up to ±14 V
On-board reference buffers, eliminating the need for a
negative reference
Controlled output during power-on
Temperature range of 40°C to +85°C/40°C to +125°C
Settling time of 10 μs to 0.003%
Clear function to 0 V
Asynchronous update of outputs (LDAC pin)
Power-on reset
Serial data output for daisy chaining
Data readback facility
APPLICATIONS
Industrial automation
Automatic test equipment
Process control
Data acquisition systems
General-purpose instrumentation
GENERAL DESCRIPTION
Rev.
0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
Tel: 781.329.4700Fax: 781.326.8703
www.analog.comFUNCTIONAL BLOCK DIAGRAM
V
OUT
V
DD
DGND
AD5570
REFIN
REFGND
LDAC
SDIN
CLR
SCLK
SYNC
PD
DAC REGISTER
SHIFT REGISTER
POWER-DOWN
CONTROL LOGIC
POWER-ON
RESET
SDO
V
SS
R
AGND
AGNDS
R
R
R
16-BIT
DAC
0
Figure 1.
The AD5570 is a single 16-bit serial input, voltage output DAC
that operates from supply voltages of ±12 V up to ±15 V.
Integral linearity (INL) and differential nonlinearity (DNL) are
accurate to 1 LSB. During power-up (when the supply voltages
are changing), V
OUT
is clamped to 0 V via a low impedance path.
The AD5570 DAC comes complete with a set of reference
buffers. The reference buffers allow a single, positive reference
to be used. The voltage on REFIN is gained up and inverted
internally to give the positive and negative reference for the
DAC core. Having the reference buffers on-chip eliminates the
need for external components such as inverters, precision
amplifiers, and resistors, thereby reducing the overall solution
size and cost.
The AD5570 uses a versatile 3-wire interface that is compatible
with SPI, QSPI, MICROWIRE, and DSP interface standards.
Data is presented to the part in the format of a 16-bit serial
word. Serial data is available on the SDO pin for daisy-chaining
purposes. Data readback allows the user to read the contents of
the DAC register via the SDO pin.
Features on the AD5570 include LDAC, which may be used to
update the output of the DAC. The device also has a power-
down pin (PD), which allows the DAC to be put into a low
power state, and a CLR pin that allows the output to be cleared
to 0 V.
The AD5570 is available in a 16-lead SSOP package.
PRODUCT HIGHLIGHTS
1. 1 LSB maximum INL and DNL.
2. Buffered voltage output up to ±14 V.
3. Output controlled during power-up.
4. On-board reference buffers.
5. Wide temperature range of
40°C to +125°C.
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