AD7262

PRODUCTION

1 MSPS, 12-Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators

Data Sheet (Rev. C) Product Selection Table

Part Models: 4
1ku List Price: Starting From $5.41

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Overview

Dual simultaneous sampling 12-bit, 2-channel analog-to-digital converter (ADC)
True differential analog inputs
Programmable gain stage: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, ×128
Throughput rate per ADC
- 1 MSPS for AD7262
- 500 kSPS for AD7262-5
Analog input impedance: >1 GΩ
Wide input bandwidth
- −3 dB bandwidth: 1.7 MHz at gain = 2
4 on-chip comparators
SNR: 73 dB typical at gain = 2, 66 dB typical at gain = 32
Device offset calibration, system gain calibration
On-chip reference: 2.5 V
−40°C to +105°C operation
High speed serial interface
- SPI/QSPI^™/MICROWIRE/DSP compatible
48-lead LFCSP and LQFP

The AD7262/AD7262-5 are dual, 12-bit, high speed, low power, successive approximation ADCs that operate from a single 5 V power supply. The AD7262 features throughput rates of up to 1 MSPS per on-chip ADC. The AD7262-5 features throughput rates of up to 500 kSPS. Two complete ADC functions allow simultaneous sampling and conversion of two channels. Each ADC is preceded by a true differential analog input with a PGA. There are 14 gain settings available: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128.

The AD7262/AD7262-5 contain four comparators. Comparator A and Comparator B are optimized for low power, while Comparator C and Comparator D have fast propagation delays. The AD7262/AD7262-5 feature a calibration function to remove any device offset error and programmable gain adjust registers to allow for input path (for example, sensor) offset and gain compensation. The AD7262/AD7262-5 have an on-chip 2.5 V reference that can be disabled if an external reference is preferred.

The AD7262/AD7262-5 are ideally suited for monitoring small amplitude signals from a variety of sensors. They include all the functionality needed for monitoring the position feedback signals from a variety of analog encoders used in motor control systems.

Product Highlights

Integrated PGA with a variety of flexible gain settings to allow detection and conversion of low level analog signals.
Each PGA is followed by a dual simultaneous sampling ADC, featuring throughput rates of 1 MSPS per ADC for the AD7262. The conversion results of both ADCs are simultaneously available on separate data lines or in succession on one data line if only one serial port is available.
Four integrated comparators that can be used to count signals from pole sensors in motor control applications.
Internal 2.5 V reference.

Part Models: 4
1ku List Price: Starting From $5.41

Documentation

Data Sheet 1

AD7262: 1 MSPS, 12-Bit, Simultaneous Sampling SAR ADC with PGA and Four Comparators Data Sheet (Rev.C) 08/24/2015

Technical Articles 1

Designing Power Supplies for High Speed ADC 02/01/2012

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
AD7262BCPZ-RL7	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7262BSTZ	48-Lead LQFP (7mm x 7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7262BSTZ-5	48-Lead LQFP (7mm x 7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7262BSTZ-5-RL7	48-Lead LQFP (7mm x 7mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 13, 2017 - 16_0077 CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea.
		PCN16_0077_Form Material_Report Detailed Parts List Detailed Parts List Package Outline Drawing Detailed Change Description Qualification Results Summary
AD7262BCPZ-RL7	PRODUCTION
Jan 5, 2009 - 07_0077 Certification of STATSChipPAC Shanghai, China and AMKOR Philippines as additional sources for Assembly & Test of QFP Packages
		07_0077Rev D_LQFP_Dec17 07_0077Rev D_MQFP_Dec15 07_0077Rev D_Obsolesence_Dec15 07_0077Rev D_TQFP_Dec15 Material_Report PCN07_0077_Form QFP Transfer Qualification Results-tests_DEC12CL
AD7262BSTZ	PRODUCTION
AD7262BSTZ-5	PRODUCTION
AD7262BSTZ-5-RL7	PRODUCTION

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

Software Resources

Device Drivers 1

CED1Z FPGA Project for AD7262 with Nios driver

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Evaluation Kits

AD7262 Evaluation Board

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Product Details

The EVAL-AD7262EDZ is a fully featured evaluation Kit for the AD7262. This board operates in stand alone mode or in conjunction with the Converter Evaluation and Development board, EVAL-CED1Z . When operated with the Converter Evaluation and Development board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Converter Evaluation and Development board.