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ADT7411 Datasheet(PDF) 1 Page - Analog Devices

Part No. ADT7411
Description  SPI/I2C Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADT7411 Datasheet(HTML) 1 Page - Analog Devices

 
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SPI®/I2C® Compatible, 10-Bit Digital
Temperature Sensor and 8-Channel ADC
ADT7411
*
Rev. A
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
© 2004 Analog Devices, Inc. All rights reserved.
FEATURES
10-bit temperature-to-digital converter
10-bit 8-channel ADC
DC input bandwidth
Input range: 0 V to 2.25 V, and 0 V to VDD
Temperature range: –40°C to +120°C
Temperature sensor accuracy of ±0.5°C
Supply range: 2.7 V to 5.5 V
Power-down current 1 µA
Internal 2.25 VREF option
Double-buffered input logic
I2C, SPI, 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 test equipment
Domestic appliances
Process control
PIN CONFIGURATION
ADT7411
TOP VIEW
(Not to Scale)
AIN6
1
AIN7
16
AIN5
2
AIN8
15
NC
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
AIN3
9
NC = NO CONNECT
Figure 1.
GENERAL DESCRIPTION
The ADT7411 combines a 10-bit temperature-to-digital con-
verter and a 10-bit 8-channel ADC in a 16-lead QSOP package.
This includes 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 ADT7411 operates from a single 2.7 V to 5.5 V
supply. The input voltage on the ADC channels has a range of
0 V to 2.25 V and the input bandwidth is dc. The reference for
the ADC channels is derived internally. The ADT7411 provides
two serial interface options: a 4-wire serial interface compatible
with SPI, QSPI, MICROWIRE, and DSP interface standards,
and a 2-wire SMBus/I2C interface. It features a standby mode
that is controlled via the serial interface.
The ADT7411’s wide supply voltage range, low supply current,
and SPI/I2C compatible interface make it ideal for a variety of
applications, including personal computers, office equipment,
and domestic appliances.
*Protected by the following U.S. Patent Numbers: 6,169,442; 5,867,012; 5,764174. Other patents pending.


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