AD7818
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AD7818

Temperature Sensor (On-Chip) Single-Channel, 9 µs, 10-Bit ADC

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Info: : PRODUCTION tooltip
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Part Details
Part Models 4
1ku List Price Starting From $4.07
Features
  • 10-Bit ADC with 9 µs Conversion Time
  • One (AD7818) and Four (AD7817) Single-Ended Analog Input Channels
  • 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
  • Inherent Track-and-Hold Functionality
  • 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
  • Flexible Serial Interface
Additional Details
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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).

Part Models 4
1ku List Price Starting From $4.07

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Documentation

Documentation

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Product Lifecycle

PCN

May 15, 2012

- 10_0006

Halogen Free Material Change for mini SOIC Products

AD7818ARMZ

PRODUCTION

AD7818ARMZ-REEL

PRODUCTION

AD7818ARMZ-REEL7

PRODUCTION

Feb 8, 2010

- 04_0080

Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

May 15, 2012

- 10_0006

arrow down

Halogen Free Material Change for mini SOIC Products

AD7818ARMZ

PRODUCTION

AD7818ARMZ-REEL

PRODUCTION

AD7818ARMZ-REEL7

PRODUCTION

Feb 8, 2010

- 04_0080

arrow down

Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.

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