AD7817ARZ Multiplexed A/D Converters by Analog Devices

Status: Production
Series: AD7817
RoHS: Compliant
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The AD7818 and AD7817 are 10-bit, single- and 4-channel A/D converters with on-chip temperature sensor that can operate from a single 2.7 V to 5.5 V power supply. Each part contains a 9 μs successive-approximation converter based around a capacitor DAC, an on-chip temperature sensor with an accuracy of ±2°C, an on-chip clock oscillator, inherent track-and-hold functionality and an on-chip reference (2.5 V). The AD7816 is a temperature monitoring only device in a SOIC/MSOP package.The on-chip temperature sensor of the AD7817 and AD7818 can be accessed via Channel 0. When Channel 0 is selected and a conversion is initiated, the resulting ADC code at the end of the conversion gives a measurement of the ambient temperature with a resolution of ±0.25°C. See Temperature Measurement section of this data sheet.The AD7816, AD7817, and AD7818 have a flexible serial interface that allows easy interfacing to most microcontrollers. The interface is compatible with the Intel 8051, Motorola SPI® and QSPI™ protocols and National Semiconductors MICROWIRE™ protocol. For more information refer to the Serial Interface section of this data sheet.The AD7817 is available in a narrow body 0.15' 16-lead small outline IC (SOIC), in a 16-lead, thin shrink small outline package (TSSOP), while the AD7816 / AD7818 come in an 8-lead small outline IC (SOIC) and an 8-lead microsmall outline IC (MSOP).PRODUCT HIGHLIGHTS The devices have an on-chip temperature sensor that allows an accurate measurement of the ambient temperature to be made. The measurable temperature range is −55°C to +125°C. An overtemperature indicator is implemented by carrying out a digital comparison of the ADC code for Channel 0 (temperature sensor) with the contents of the on-chip overtemperature register. The overtemperature indicator pin goes logic low when a predetermined temperature is exceeded. The automatic power-down feature enables the AD7817 and AD7818 to achieve superior power performance at slower throughput rates, that is, 40 μW at 1 kSPS throughput rate.

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Logo for Analog Devices Analog Devices US$15.15
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Logo for Newark Electronics Newark Electronics US$9.26
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Features

10-Bit ADC with 9 µs Conversion Time
The AD7816 Is a Temperature Measurement Only Device
On-Chip Temperature Sensor
Resolution of 0.25°C
±2°C Error from −40°C to +85°C
−55°C to +125°C Operating Range
Wide Operating Supply Range 2.7 V to 5.5 V
On-Chip Reference (2.5 V ± 1%)
Over-Temperature Indicator
Automatic Power-Down at the End of a Conversion
Low Power Operation
4 µW at a Throughput Rate of 10 SPS
40 µW at a Throughput Rate of 1 kSPS
400 µW at a Throughput Rate of 10 kSPS
See data sheet for additional features

Alternative Descriptions

4 CH. ADC W/ON-CHIP TEMP SENSO | Analog Devices
Adc, 10Bit, 100Ksps, Serial, Soic-16 Rohs Compliant: Yes |Analog Devices AD7817ARZ | Newark Electronics
ADC, 10BIT, 100KSPS, SERIAL, SOIC-16 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD7817ARZ?

Additional datasheets, footprints and schematics for AD7817ARZ are listed on our Part Details page. You can also find images and similar parts to AD7817ARZ on this page.

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What category does AD7817ARZ fall under?

The AD7817ARZ is listed under Multiplexed A/D Converters.

Can I view similar or alternative parts?

You can view similar parts to AD7817ARZ when available in the Multiplexed A/D Converters range under the specifications section at the bottom of the details page.

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Is the AD7817ARZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for AD7817ARZ have stock available?

Authorised distributors including Analog Devices, Newark Electronics, element14 and Farnell have stock available or on a lead time for AD7817ARZ.

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