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Analog Devices Inc. AD7266BSUZ-REEL
- Part No.:
- AD7266BSUZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-TQFP
- Datasheet:
-
AD7266BSUZ-REEL.pdf
- Description:
- IC ADC 12BIT SAR 32TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,909
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Product details
Overview
AD7266BSUZ-REEL from Analog Devices is a dual 12-bit, 2 MSPS successive approximation ADC with pin-configurable analog inputs (12 single-ended, 6 fully differential, or 6 pseudo-differential), on-chip 2.5 V reference (±0.2% max @ 25°C), and SPI/QSPI/MICROWIRE/DSP-compatible serial interface - used in high-speed industrial data acquisition, motor control feedback, and real-time sensor monitoring systems.
For engineers reviewing the AD7266BSUZ-REEL datasheet, AD7266BSUZ-REEL pinout, AD7266BSUZ-REEL application, or AD7266BSUZ-REEL equivalent, key selection criteria include simultaneous dual-channel sampling capability, 70 dB SNR at 50 kHz, flexible input range selection (0–VREF or 0–2×VREF), low-power shutdown mode (1 μA), and compatibility with 32-lead TQFP packaging for space-constrained PCB layouts.
Technical Context
The AD7266BSUZ-REEL integrates two independent SAR ADCs, each with a 3-channel multiplexer and wide-bandwidth track-and-hold amplifier supporting >30 MHz input frequencies. Conversion is initiated on the falling edge of CS, with no pipeline delay and deterministic 14-cycle conversion time (437.5 ns at 32 MHz SCLK).
It supports straight binary or twos complement output coding, selectable analog input ranges via RANGE and SGL/DIFF pins, and dual independent serial outputs (DOUTA/DOUTB) enabling true simultaneous readout - or cascaded readout on a single port using extended CS timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete digital levels for precise analog signal digitization |
| Throughput Rate | 2 MSPS - enables real-time sampling of fast transients up to 1 MHz Nyquist bandwidth |
| SNR | 71 dB (differential mode, fIN = 50 kHz) - ensures high-fidelity signal reconstruction in noise-sensitive applications |
| INL | ±1 LSB max (differential mode) - guarantees monotonicity and accurate end-point linearity across full scale |
| Reference Voltage | 2.5 V ±0.2% @ 25°C - stable internal reference eliminates need for external precision reference in many designs |
| Power Consumption | 27 mW @ 5 V / 2 MSPS - balances speed and efficiency for battery- or thermally constrained systems |
| Operating Temperature | −40°C to +125°C - qualified for harsh industrial and automotive under-hood environments |
Pinout & Package
AD7266BSUZ-REEL is packaged in a 32-lead TQFP (SU-32-2) with exposed pad grounded for thermal and noise performance. Pin functions are validated per Analog Devices Rev. C datasheet Figure 3 and Table 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low initiation signal for both conversion start and serial frame synchronization |
| SCLK | Serial Clock | Master clock driving conversion timing and serial data output (14-cycle fixed latency) |
| DOUTA / DOUTB | Independent Serial Outputs | Simultaneous 12-bit results from ADC A and ADC B - enables lock-step dual-channel acquisition |
| VA1–VA6 / VB1–VB6 | Analog Input Channels | Two sets of six configurable inputs - support 12 single-ended, 6 differential, or 6 pseudo-differential channels |
| RANGE / SGL/DIFF | Input Configuration Control | Logic-selectable analog input range (0–VREF or 0–2×VREF) and topology (single-ended vs. differential) |
| DCAPA / DCAPB | Reference Decoupling Terminals | Connect 470 nF capacitors to stabilize internal 2.5 V reference for each ADC core |
| REF SELECT | Reference Source Selector | Switches between internal 2.5 V reference and external reference applied to DCAPA/DCAPB |
Key Features
| Feature | Design Value |
|---|---|
| Dual simultaneous sampling | Enables time-aligned capture of two independent signals - critical for phase-sensitive measurements like motor current/voltage |
| No pipeline delay | Guaranteed deterministic latency (437.5 ns) simplifies real-time control loop timing and eliminates FIFO buffering |
| Flexible analog input architecture | Single hardware design supports multiple sensor types (RTDs, strain gauges, encoders) via pin-strapped configuration |
| Low-power shutdown mode | 1 μA quiescent current extends battery life in portable instrumentation and wake-on-event systems |
| High channel-to-channel isolation | −88 dB typical prevents crosstalk between ADC A and ADC B - essential for mixed-signal monitoring |
Applications
| Motor Control Feedback | Industrial Data Acquisition |
|---|---|
Use Scenario: Real-time sampling of three-phase motor currents and bus voltage for field-oriented control (FOC). IC Role / Device Role / Timing Role: Dual ADC simultaneously captures current (IA, IB) and voltage (VDC) with sub-500 ns latency and synchronized timestamps. Use Value: Enables precise torque estimation and fast overcurrent protection without inter-channel skew or interpolation artifacts. |
Use Scenario: Multi-sensor monitoring in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Digitizes 12 channels of temperature, pressure, and flow sensors using multiplexed single-ended configuration. Use Value: Reduces component count by replacing two separate 6-channel ADCs while maintaining 2 MSPS aggregate throughput. |
| Power Quality Monitoring | Real-Time Vibration Analysis |
Use Scenario: Simultaneous measurement of line voltage and current waveforms for harmonic distortion analysis (THD, SFDR). IC Role / Device Role / Timing Role: Configured in differential mode to reject common-mode noise on AC mains inputs. Use Value: Delivers 71 dB SNR and −75 dB SFDR at 50 kHz - meets IEC 61000-4-30 Class A accuracy requirements. |
Use Scenario: High-speed acquisition of accelerometer and microphone signals for bearing fault detection. IC Role / Device Role / Timing Role: Uses pseudo-differential inputs to reject ground bounce in noisy mechanical environments. Use Value: Supports 2 MSPS sampling to resolve harmonics up to 1 MHz - sufficient for early-stage defect identification in rotating equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7265BSUZ-REEL | 1 MSPS throughput, identical pinout and feature set except lower speed and reduced power (11.4 mW @ 3 V) | Better suited for cost-optimized, lower-bandwidth systems where 2 MSPS is unnecessary | Select when system sampling requirement is ≤1 MSPS and power budget is tighter than 27 mW |
| ADS8860IRGET | Single 16-bit, 1 MSPS SAR ADC with SPI interface; no dual-channel or internal reference | Higher resolution but lacks simultaneous dual-channel capability and integrated reference | Choose only if resolution >12-bit is mandatory and dual-channel sync is handled externally |
Compared with AD7266BSUZ-REEL, AD7265BSUZ-REEL offers identical functionality at half the speed and lower power, while ADS8860IRGET trades dual-channel concurrency and on-chip reference for higher resolution - making AD7266BSUZ-REEL uniquely balanced for real-time, multi-signal industrial control.
Availability
AD7266BSUZ-REEL is available at Aetrix Electronics and suitable for industrial motor control, power quality analyzers, and real-time vibration monitoring systems requiring stable component supply and long-term production continuity.
Supply support for AD7266BSUZ-REEL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D and manufacturing operations worldwide.
The AD7266BSUZ-REEL belongs to Analog Devices' high-speed precision SAR ADC product line, engineered specifically for industrial automation, energy metering, and real-time control systems demanding simultaneous dual-channel acquisition and robust operation across extended temperature ranges.
FAQ
What is the maximum sampling rate supported by the AD7266BSUZ-REEL?
The AD7266BSUZ-REEL supports a maximum throughput rate of 2 MSPS, achieved with a 32 MHz SCLK and 5 V supply. At this rate, conversion time is fixed at 14 SCLK cycles (437.5 ns), and power consumption is 27 mW. Performance remains specified down to 1.5 MSPS with 3 V supplies, where power drops to 9 mW.
Does the AD7266BSUZ-REEL include an internal voltage reference?
Yes, the AD7266BSUZ-REEL features an accurate on-chip 2.5 V reference with ±0.2% maximum initial error at 25°C and 20 ppm/°C maximum temperature coefficient. It can be enabled via the REF SELECT pin tied low, and decoupled using 470 nF capacitors on DCAPA and DCAPB pins. An external reference (100 mV to VDD) may also be applied.
Can the AD7266BSUZ-REEL perform simultaneous sampling on both ADCs?
Yes, the AD7266BSUZ-REEL is designed for true simultaneous sampling: both ADC cores sample their respective input channels on the same falling edge of CS. The conversion results appear simultaneously on DOUTA and DOUTB, enabling time-aligned dual-channel acquisition without inter-channel skew - a key advantage over interleaved or sequential dual-ADC architectures.
What package type is used for the AD7266BSUZ-REEL?
The AD7266BSUZ-REEL uses a 32-lead TQFP package (SU-32-2 footprint), distinct from the LFCSP variant (AD7266BCPZ). This package provides robust thermal performance, standard surface-mount compatibility, and verified pinout alignment with Analog Devices' Rev. C datasheet Figure 3 - including dedicated AGND/DGND planes and exposed pad grounding recommendations.
How does the AD7266BSUZ-REEL handle analog input configuration?
The AD7266BSUZ-REEL supports three analog input modes via pin-strapping: SGL/DIFF selects single-ended vs. differential topology, and RANGE selects 0–VREF or 0–2×VREF full-scale range. Inputs VA1–VA6 and VB1–VB6 are independently configurable - allowing 12 single-ended, 6 differential, or 6 pseudo-differential channels, all validated in the device's Rev. C datasheet Tables 6 and 7.
AD7266BSUZ-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-TQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 2M
- Number of Inputs:
- 6, 12
- Input Type:
- Differential, Pseudo-Differential, Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 32-TQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7266BSUZ-REEL FAQ
1.How can I place an order for AD7266BSUZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7266BSUZ-REEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD7266BSUZ-REEL reliable?
The price and inventory of AD7266BSUZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7266BSUZ-REEL is usually 5 days.
3.What payment methods are accepted for AD7266BSUZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7266BSUZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7266BSUZ-REEL?
AD7266BSUZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7266BSUZ-REEL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD7266BSUZ-REEL?
For technical support, including AD7266BSUZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7266BSUZ-REEL requirements.
6.How does Aetrix verify that AD7266BSUZ-REEL is sourced from the original manufacturer or authorized distributors?
All AD7266BSUZ-REEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD7266BSUZ-REEL meets industry standards.
7.What is the process for return or replacement of AD7266BSUZ-REEL?
All AD7266BSUZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD7266BSUZ-REEL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD7266BSUZ-REEL part is unused and in its original packaging.
Return procedure for AD7266BSUZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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