AD7887

PRODUCTION

2.7 V to 5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead MSOP

Data Sheet (Rev. E) Product Selection Table

Part Models: 10
1ku List Price: Starting From $5.64

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Overview

Specified for V_DD of 2.7 V to 5.25 V
Flexible power/throughput rate management
Shutdown mode: 1 μA max

One or two single-ended inputs
Serial interface: SPI®/QSPI™/MICROWIRE™/DSP compatible
8-lead narrow SOIC and MSOP packages

The AD7887 is a high speed, low power, 12-bit analog-to-digital converter (ADC) that operates from a single 2.7 V to 5.25 V power supply. The AD7887 is capable of 125 kSPS throughput rate. The input track-and-hold acquires a signal in 500 ns and features a single-ended sampling scheme. The output coding for the AD7887 is straight binary, and the part is capable of converting full power signals of up to 2.5 MHz.

The AD7887 can be configured for either dual- or single-channel operation via the on-chip control register. There is a default single-channel mode that allows the AD7887 to be operated as a read-only ADC. In single-channel operation, there is one analog input (AIN0) and the AIN1/V_REF pin assumes its V_REF function. This V_REF pin allows the user access to the part’s internal 2.5 V reference, or the V_REF pin can be overdriven by an external reference to provide the reference voltage for the part. This external reference voltage has a range of 2.5 V to VDD. The analog input range on AIN0 is 0 to V_REF.

In dual-channel operation, the AIN1/V_REF pin assumes its AIN1 function, providing a second analog input channel. In this case, the reference voltage for the part is provided via the V_DD pin. As a result, the input voltage range on both the AIN0 and AIN1 inputs is 0 to V_DD.

CMOS construction ensures low power dissipation of typically 2 mW for normal operation and 3 μW in power-down mode. The part is available in an 8-lead, 0.15-inch-wide narrow body SOIC and an 8-lead MSOP package.

Product Highlights

Smallest 12-bit dual-/single-channel ADC; 8-lead MSOP package.
Lowest power 12-bit dual-/single-channel ADC.
Flexible power management options, including automatic power-down after conversion.
Read-only ADC capability.
Analog input range from 0 V to V_REF.
Versatile serial input/output port (SPI/QSPI/MICROWIRE/ DSP compatible).

Applications

Battery-powered systems (personal digital assistants, medical instruments, mobile communications)

Instrumentation and control systems

High speed modems

Part Models: 10
1ku List Price: Starting From $5.64

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD7887ARMZ	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887ARMZ-REEL	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887ARMZ-REEL7	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887ARZ	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887ARZ-REEL7	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887BRZ	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887BRZ-REEL	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887BRZ-REEL7	8-Lead SOIC	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887WARMZ	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7887WARMZ-RL	8-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jan 5, 2015 - 14_0246 Qualification of ASE Chungli, as an Alternate Assembly Site for Select MSOP Devices
		PCN14_0246_Form Material_Report Detailed Change Description Qualification Results Summary
AD7887ARMZ	PRODUCTION
AD7887ARMZ-REEL	PRODUCTION
AD7887ARMZ-REEL7	PRODUCTION
May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products
		PCN10_0006_Form Material_Report Qualification Report Summary Qualification Report Summary
AD7887ARMZ	PRODUCTION
AD7887ARMZ-REEL	PRODUCTION
AD7887ARMZ-REEL7	PRODUCTION
AD7887WARMZ	PRODUCTION
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.
		PCN04_0080_Form Material_Report Reliability Report Reliability Report
AD7887ARMZ	PRODUCTION
AD7887ARMZ-REEL	PRODUCTION
AD7887ARMZ-REEL7	PRODUCTION
AD7887ARZ	PRODUCTION
AD7887ARZ-REEL7	PRODUCTION
AD7887BRZ	PRODUCTION
AD7887BRZ-REEL	PRODUCTION
AD7887BRZ-REEL7	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Device Drivers 2

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Evaluation Kits

AD7887 Evaluation Board

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Features and Benefits

Full featured evaluation board for the AD7887
On-board power supplies
Standalone capability
System demonstration platform (SDP) compatible (EVAL-SDP-CB1Z)
PC software for control and data analysis (download from product page)

Product Details

The EVAL-AD7887SDZ is a full featured evaluation board designed to allow easy evaluation of all the features of the AD7887 analog-to-digital converter (ADC). The evaluation board can be controlled via the SDP connector (J20). The SDP board (EVAL-SDP-CB1Z) allows the evaluation board to be controlled through the USB port of a PC using the software available for download from the EVAL-AD7887SDZ product page.
The EVAL-AD7887SDZ software provides dynamic performance analysis in the form of waveform graphs, histograms, and FFT analysis for ADC performance evaluation.
On-board components include: the AD8033 and the AD8034 FastFET high speed precision rail-to-rail op amps, the ADP3303 high accuracy 200 mA low dropout linear regulator, and the AD780 2.5 V/3.0 V ultrahigh precision band gap voltage reference.

Online Resources