AD7266

PRODUCTION

Differential/Single-Ended Input, Dual 2 MSPS, 12-Bit, 3-Channel SAR ADC

Data Sheet (Rev. C) Product Selection Table

Part Models: 5
1ku List Price: Starting From $5.22

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Overview

Dual 12-bit, 3-channel ADC
Throughput rate: 2 MSPS
Specified for V_DD of 2.7 V to 5.25 V
Power consumption:

9 mW at 1.5 MSPS with 3 V supplies
27 mW at 2 MSPS with 5 V supplies

Pin-configurable analog inputs

12-channel single-ended inputs
6-channel fully differential inputs
6-channel pseudo differential inputs

70 dB SNR at 50 kHz input frequency

Accurate on-chip reference: 2.5 V

±0.2% maximum @ 25°C, 20 ppm/°C maximum

Dual conversion with read 437.5 ns, 32 MHz SCLK
High speed serial interface

SPI^®-/QSPI^™-/MICROWIRE^&trade-/DSP-compatible

−40°C to +125°C operation
Shutdown mode: 1 μA maximum
32-lead LFCSP and 32-lead TQFP
1 MSPS version, AD7265

The AD7266 is a dual, 12-bit, high speed, low power, successive approximation ADC that operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 2 MSPS. The device contains two ADCs, each preceded by a 3-channel multiplexer, and a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 30 MHz.

The conversion process and data acquisition use standard control inputs allowing easy interfacing to microprocessors or DSPs. The input signal is sampled on the falling edge of CS; conversion is also initiated at this point. The conversion time is determined by the SCLK frequency. There are no pipelined delays associated with the part.

The AD7266 uses advanced design techniques to achieve very low power dissipation at high throughput rates. With 5 V supplies and a 2 MSPS throughput rate, the part consumes 6.2 mA maximum. The part also offers flexible power/throughput rate management when operating in normal mode as the quiescent current consumption is so low.

The analog input range for the part can be selected to be a 0 V to V_REF (or 2 × V_REF) range, with either straight binary or twos complement output coding. The AD7266 has an on-chip 2.5 V reference that can be overdriven when an external reference is preferred. This external reference range is 100 mV to V_DD.

PRODUCT HIGHLIGHTS

Two Complete ADC Functions Allow Simultaneous Sampling and Conversion of Two Channels. Each ADC has three fully/pseudo differential pairs, or six single-ended channels, as programmed. The conversion result of both channels is simultaneously available on separate data lines, or in succession on one data line if only one serial port is available.
High Throughput with Low Power Consumption. The AD7266 offers a 1.5 MSPS throughput rate with 11.4 mW maximum power dissipation when operating at 3 V.
The AD7266 offers both a standard 0 V to V_REF input range and a 2 × V input range.
No Pipeline Delay. The part features two standard successive approximation ADCs with accurate control of the sampling instant via a CS input and once off conversion control.

Part Models: 5
1ku List Price: Starting From $5.22

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
AD7266BCPZ	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7266BCPZ-REEL7	32-Lead LFCSP (5mm x 5mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7266BSUZ	32-Lead TQFP (7mm x 7mm x 1mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7266BSUZ-REEL	32-Lead TQFP (7mm x 7mm x 1mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD7266BSUZ-REEL7	32-Lead TQFP (7mm x 7mm x 1mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Sep 26, 2023 - 23_0090 CANCELLED: AD7265 and AD7266 INL Specification Change
		PCN23_0090_Form Material_Report Revised Datasheet Specification
AD7266BCPZ	PRODUCTION
AD7266BCPZ-REEL7	PRODUCTION
AD7266BSUZ	PRODUCTION
AD7266BSUZ-REEL	PRODUCTION
AD7266BSUZ-REEL7	PRODUCTION
Jun 9, 2021 - 20_0126 Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea
		PCN20_0126_Form Qualification Results Summary Material_Report Detailed Change Description Package Outline Drawing Package Outline Drawing Qualification Results Summary Qualification Results Summary Qualification Results Summary Qualification Results Summary
AD7266BCPZ	PRODUCTION
AD7266BCPZ-REEL7	PRODUCTION
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
AD7266BCPZ	PRODUCTION
AD7266BCPZ-REEL7	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
AD7266BCPZ	PRODUCTION
AD7266BCPZ-REEL7	PRODUCTION
AD7266BSUZ	PRODUCTION
AD7266BSUZ-REEL	PRODUCTION
AD7266BSUZ-REEL7	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
AD7266BSUZ	PRODUCTION
AD7266BSUZ-REEL	PRODUCTION
AD7266BSUZ-REEL7	PRODUCTION

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

Software Resources

Device Drivers 1

AD7266 GitHub Linux Driver Source Code

Can't find the software or driver you need?

Hardware Ecosystem

Parts	Product Life Cycle	Description
Differential Amplifiers 1
ADA4932-1	RECOMMENDED FOR NEW DESIGNS	Low Power Differential ADC Driver
Interface Transceivers & Isolators 3
ADUM1402	PRODUCTION	Quad-Channel Digital Isolator (2/2 Channel Directionality)
ADUM1412	PRODUCTION	Quad-Channel Digital Isolator
ADUM3482	PRODUCTION	Small, 3.75 kV RMS Quad Digital Isolators (2/2 Channel Directionality)

Operational Amplifiers (Op Amps) 9
ADA4841-1	PRODUCTION	Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier
OP177	PRODUCTION	Ultraprecision Operational Amplifier
ADA4077-2	RECOMMENDED FOR NEW DESIGNS	4 MHz, 7 nV/√Hz, Low Offset and Drift, High Precision Dual Amplifier
ADA4627-1	PRODUCTION	36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp
ADA4000-2	PRODUCTION	Dual, Low Cost, Precision JFET Input Operational Amplifier
ADA4610-2	RECOMMENDED FOR NEW DESIGNS	Low Noise, Precision, Rail-to-Rail Output, JFET Dual Op Amp
AD8022	PRODUCTION	Dual High Speed, Low Noise Op Amp
ADA4897-1	RECOMMENDED FOR NEW DESIGNS	1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers
ADA4899-1	PRODUCTION	Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp
Voltage References 3
ADR431	PRODUCTION	Ultralow Noise XFET^® Voltage References with Current Sink and Source Capability
ADR4525	PRODUCTION	Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference
ADR441	PRODUCTION	Ultralow Noise, LDO XFET^® 2.5V Voltage Reference w/Current Sink and Source

Tools & Simulations

IBIS Model 1

AD7266 IBIS Model

Evaluation Kits

AD7266 Evaluation Board

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Product Details

The EVAL-AD7266EDZ is a fully featured evaluation Kit for the AD7266. 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.