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AD7417

Features: 10-Bit ADC with 15 s and 30 us Conversion TimesSingle and Four Single-Ended Analog Input ChannelsOn-Chip Temperature Sensor: 40 to +125On-Chip Track-and-HoldOvertemperature IndicatorAutomatic Power-Down at the End of a ConversionWide Operating Supply Range: 2.7 V to 5.5 VI2C®Compatib...

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SeekIC No. : 004270162 Detail

AD7417: Features: 10-Bit ADC with 15 s and 30 us Conversion TimesSingle and Four Single-Ended Analog Input ChannelsOn-Chip Temperature Sensor: 40 to +125On-Chip Track-and-HoldOvertemperature IndicatorAutoma...

AD7417 Data Sheet

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Part Number:
AD7417
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

10-Bit ADC with 15 s and 30 us Conversion Times
Single and Four Single-Ended Analog Input Channels
On-Chip Temperature Sensor: 40 to +125
On-Chip Track-and-Hold
Overtemperature Indicator
Automatic Power-Down at the End of a Conversion
Wide Operating Supply Range: 2.7 V to 5.5 V
I2C®Compatible Serial Interface
Selectable Serial Bus Address Allows Connection of upto Eight AD7416/AD7417s to a Single Bus
AD7416 Is a Superior Replacement for LM75




Application

Data Acquisition with Ambient Temperature Monitoring
Industrial Process Control
Automotive
Battery-Charging Applications
Personal Computers




Pinout

Connection Diagram

AD7417 Diagram




Specifications

(TA = 25°C, unless otherwise noted.)
VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to +7 V
VDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +7 V
Analog Input Voltage to AGND
AIN1 to AIN4 . . . . . . . . . . . . . . . . . . . 0.3 V to VDD + 0.3 V
Reference Input Voltage to AGND2 . .0.3 V to VDD + 0.3 V
Digital Input Voltage to DGND . . . . . 0.3 V to VDD + 0.3 V
Digital Output Voltage to DGND . . . . 0.3 V to VDD + 0.3 V
Operating Temperature Range
A Version . . . . . . . . . . . . . . . . . . . . . . . . . 40 to +125
B Version . . . . . . . . . . . . . . . . . . . . . . . . . . 40 to +85
Storage Temperature Range . . . . . . . . . . . 65 to +150
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . 150
TSSOP, Power Dissipation . . . . . . . . . . . . . . . . . . . . 450 mW
QJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 120/W
Lead Temperature, Soldering . . . . . . . . . . . . . . . . . .. . 260
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . .. . 215
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . .. .220
16-Lead SOIC Package, Power Dissipation . . . . . . . .450 mW
QJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 100/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . .. . 215
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 220
8-Lead SOIC Package, Power Dissipation . . . . . . . . . 450 mW
QJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . .. 157/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . .. .. 215
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. 220
MSOP Package, Power Dissipation . . . . . . . . . . . . . . 450 mW
QJAThermal Impedance . . . . . . . . . . . . . . . . . . . .. . 206 /W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . .... 215
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . ... . 220

Output Type Digital
Sensor Output I2C ?
Temp Res(°C/LSB) 0.25°C/LSB
Supply Voltage Range +2.7V to +5.5V
Temp Range(s) -40 to +125





Description

The AD7417 and AD7418 are 10-bit, 4-channel and single-channel ADCs with an on-chip temperature sensor thatcan operate from a single 2.7 V to 5.5 V power supply. Thedevices contain a 15 s successive approximation converter, a5-channel multiplexer, a temperature sensor, a clock oscilla-tor, a track-and-hold, and a reference (2.5 V). The AD7416
is a temperature-monitoring only device in an 8-lead package.

The temperature sensor AD7417 and AD7418 on the parts can be accessed via multi-plexer Channel 0. When Channel 0 is selected and a conversionis initiated, the resulting ADC code at the end of the conversiongives a measurement of the ambient temperature (±1 @ 25).On-chip registers can be programmed with high and low tem-perature limits, and anopen-drain overtemperature indicator(OTI) output is provided, which becomes active when a pro-grammed limit isexceeded.

A configuration register AD7417 and AD7418 allows programming of the sense of theOTI output (active high or active low) and itsoperating mode(comparator or interrupt). A programmable fault queue counterallows the number of out-of-limit measurements that must occurbefore triggering the OTI output to be set to prevent spurioustriggering of the OTI output in noisy environments.






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