AD7887ARMZ

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AD7887ARMZ

IC ADC 12BIT SAR 8MSOP

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規格

Supplier Rochester Electronics, LLC,Analog Devices Inc.
Package Bulk,Tube
ProductStatus Active
NumberofBits 12
SamplingRate(PerSecond) 125k
NumberofInputs 1, 2
InputType Single Ended
DataInterface SPI, DSP
Configuration MUX-S/H-ADC
Ratio-S/H:ADC 1:1
NumberofA/DConverters 1
Architecture SAR
ReferenceType External, Internal
Voltage-SupplyAnalog 2.7V ~ 5.25V
Voltage-SupplyDigital 2.7V ~ 5.25V
OperatingTemperature -40°C ~ 125°C
Package/Case 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
SupplierDevicePackage 8-MSOP

概述

Description

AD7887ARMZ is Analog Devices’ 12-bit, 8-channel multiplexed SAR analog-to-digital converter with a serial (SPI-like) interface. It multiplexes eight input channels through an on-chip multiplexer, converting the selected channel on CNV command and delivering 12-bit data over the serial output as clocked. It’s designed for low-power, compact instrumentation and data acquisition. The ARMZ suffix denotes the RoHS-compliant package type. Typical use cases include multi-channel sensing systems, instrumentation, and process control.

Features

Key features of AD7887ARMZ:
- 12-bit resolution with SAR architecture
- Serial interface: SPI-compatible (DOUT, SCLK, CS)
- Conversion rate up to 1 MSPS
- Single-supply operation: 2.7 V to 5.25 V
- Input: unipolar 0 to Vref range (buffered on-chip input)
- Internal reference option (e.g., ~2.5 V) or external reference input
- On-chip sample-and-hold
- Low-power operation in a compact package
- Industrial temperature range: -40°C to +85°C
- 8-lead ARMZ package (RoHS-compliant)

Package

AD7887ARMZ is in an 8-lead MSOP package (MSOP-8), RoHS-compliant.

Pinout

- Pin count: 8 pins (MSOP-8/SOIC-8 package)
- Function: 12-bit, single-channel, SPI-compatible analog-to-digital converter (serial interface)

Manufacturer

Analog Devices, Inc. (ADI) is the manufacturer of the AD7887ARMZ. Analog Devices is an American multinational semiconductor company that designs and manufactures analog, mixed-signal, and DSP integrated circuits for signal processing, instrumentation, and communications.

Application

Typical application areas for AD7887ARMZ:
- Multichannel data acquisition systems and sensor arrays
- Industrial automation and process control instrumentation
- Automotive sensing and diagnostics
- Portable/handheld measurement instruments and data loggers
- Medical instrumentation with multiple sensors
- Environmental monitoring and data-logging systems
- Test equipment and lab instrumentation with multiplexed signals

Equivalent

Equivalent parts depend on interface and package, but common cross references for a 12-bit, 8-channel multiplexed ADC with SPI include:
- Microchip MCP3208 (12-bit, 8-channel, SPI, 2.7–5.5 V)
- TI ADS7828 (12-bit, 8-channel, SPI)
- TI ADS7884/ADS7886 (12-bit, 8-channel, SPI)
Note: exact pinout, voltage range, and sampling rate differ. There isn’t an exact drop-in Analog Devices pin-compatible substitute; compare timing, package, and input range to select the closest match.

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