AD7266
PRODUCTIONDifferential/Single-Ended Input, Dual 2 MSPS, 12-Bit, 3-Channel SAR ADC
- Part Models
- 5
- 1ku List Price
- Starting From $5.22
Part Details
- Dual 12-bit, 3-channel ADC
- Throughput rate: 2 MSPS
- Specified for VDD 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 VREF (or 2 × VREF) 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 VDD.
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 VREF 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.
Documentation
Data Sheet 1
Application Note 2
Technical Articles 1
Tutorial 2
Circuit Note 1
Technical Book 1
Product Selection Guide 1
Device Drivers 1
Webcast 1
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) | ||
| AD7266BCPZ-REEL7 | 32-Lead LFCSP (5mm x 5mm w/ EP) | ||
| AD7266BSUZ | 32-Lead TQFP (7mm x 7mm x 1mm) | ||
| AD7266BSUZ-REEL | 32-Lead TQFP (7mm x 7mm x 1mm) | ||
| AD7266BSUZ-REEL7 | 32-Lead TQFP (7mm x 7mm x 1mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Sep 26, 2023 - 23_0090 CANCELLED: AD7265 and AD7266 INL Specification Change |
||
| 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 |
||
| 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. |
||
| 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. |
||
| 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 |
||
| 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
FPGA/HDL 2
Evaluation Software 0
Can't find the software or driver you need?
Hardware Ecosystem
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|---|---|---|
| High Voltage Op Amps ≥12V 4 | ||
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| AD8022 | PRODUCTION | Dual High Speed, Low Noise Op Amp |
| ADA4899-1 | PRODUCTION | Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp |
| Low Input Bias Current Op Amps (≤100 pA) 2 | ||
| ADA4627-1 | PRODUCTION | 36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp |
| ADA4610-2 | RECOMMENDED FOR NEW DESIGNS | Low Noise, Precision, Rail-to-Rail Output, JFET Dual Op Amp |
| Low Noise Op Amps (≤ 10nV/√Hz) 1 | ||
| ADA4897-1 | RECOMMENDED FOR NEW DESIGNS | 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers |
| Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 2 | ||
| ADA4841-1 | PRODUCTION | Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
| OP177 | PRODUCTION | Ultraprecision Operational Amplifier |
| Series 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 |
| Single-Ended to Differential Amplifiers 1 | ||
| ADA4932-1 | RECOMMENDED FOR NEW DESIGNS | Low Power Differential ADC Driver |
| Standard Digital 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) |
Tools & Simulations
IBIS Model 1
Evaluation Kits
AD7266 Evaluation Board
Resources
Software
Reference Designs
Crest Factor, Peak, and RMS RF Power Measurement Circuit Optimized for High Speed, Low Power, and Single 3.3 V Supply