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ADT7517ARQ Datasheet(PDF) 1 Page - Analog Devices

Part # ADT7517ARQ
Description  SPI-/I2C-Compatible, Temperature Sensor,4-Channel ADC and Quad Voltage Output
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
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ADT7517ARQ Datasheet(HTML) 1 Page - Analog Devices

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SPI-/I2C-Compatible, Temperature Sensor,
4-Channel ADC and Quad Voltage Output
ADT7516/ADT7517/ADT7519
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
FEATURES
ADT7516: four 12-bit DACs
ADT7517: four 10-bit DACs
ADT7519: four 8-bit DACs
Buffered voltage output
Guaranteed monotonic by design over all codes
10-bit temperature-to-digital converter
10-bit 4-channel ADC
DC input bandwidth
Input range: 0 V to 2.28 V
Temperature range: −40°C to +120°C
Temperature sensor accuracy: ±0.5°C typ
Supply range: 2.7 V to 5.5 V
DAC output range: 0 V to 2 VREF
Power-down current: <10 μA
Internal 2.28 VREF option
Double-buffered input logic
Buffered reference input
Power-on reset to 0 V DAC output
Simultaneous update of outputs (LDAC function)
On-chip, rail-to-rail output buffer amplifier
SPI®, I2C®, QSPI™, MICROWIRE™, and DSP compatible
4-wire serial interface
SMBus packet error checking (PEC) compatible
16-lead QSOP package
APPLICATIONS
Portable battery-powered instruments
Personal computers
Smart battery chargers
Telecommunications systems
Electronic text equipment
Domestic appliances
Process control
PIN CONFIGURATION
ADT7516/
ADT7517/
ADT7519
TOP VIEW
(Not to Scale)
VOUT-B 1
VOUT-C
16
VOUT-A 2
VOUT-D
15
VREF-IN 3
AIN4
14
CS 4
SCL/SCLK
13
GND 5
SDA/DIN
12
VDD 6
DOUT/ADD
11
D+/AIN1 7
INT/INT
10
D–/AIN2 8
LDAC/AIN3
9
Figure 1.
GENERAL DESCRIPTION
The ADT7516/ADT7517/ADT75191 combine a 10-bit tempera-
ture-to-digital converter, a 10-bit 4-channel ADC, and a quad
12-/10-/8-bit DAC, respectively, in a 16-lead QSOP package.
The parts also include a band gap temperature sensor and a
10-bit ADC to monitor and digitize the temperature reading to
a resolution of 0.25°C.
The ADT7516/ADT7517/ADT7519 operate from a single 2.7 V
to 5.5 V supply. The input voltage range on the ADC channels is
0 V to 2.28 V, and the input bandwidth is dc. The reference for
the ADC channels is derived internally. The output voltage of
the DAC ranges from 0 V to VDD, with an output voltage settling
time of 7 μs typical.
The ADT7516/ADT7517/ADT7519 provide two serial interface
options: a 4-wire serial interface that is compatible with SPI,
QSPI, MICROWIRE, and DSP interface standards, and a 2-wire
SMBus/I2C interface. They feature a standby mode that is
controlled through the serial interface.
The reference for the four DACs is derived either internally or
from a reference pin. The outputs of all DACs can be updated
simultaneously using the software LDAC function or the
external LDAC pin. The ADT7516/ADT7517/ADT7519
incorporate a power-on reset circuit, ensuring that the DAC
output powers up to 0 V and remains there until a valid write
takes place.
The wide supply voltage range, low supply current, and SPI-/
I2C-compatible interface of the ADT7516/ADT7517/ADT7519
make them ideal for a variety of applications, including
personal computers, office equipment, and domestic appliances.
1 Protected by U.S. Patent Numbers: 6,169,442; 5,867,012; and 5,764,174. Other patents pending.


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