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Analog Devices Inc. AD7266BCPZ-REEL7
- Part No.:
- AD7266BCPZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 32-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD7266BCPZ-REEL7.pdf
- Description:
- IC ADC 12BIT SAR 32LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,499
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Product details
Overview
AD7266BCPZ-REEL7 from Analog Devices is a dual 12-bit, 2 MSPS successive approximation ADC with integrated 2.5 V reference, pin-configurable analog input modes (single-ended, pseudo-differential, fully differential), and simultaneous dual-channel conversion for high-fidelity data acquisition in industrial control and motor feedback systems.
For engineers reviewing the AD7266BCPZ-REEL7 datasheet, AD7266BCPZ-REEL7 pinout, AD7266BCPZ-REEL7 application, or AD7266BCPZ-REEL7 equivalent, key selection criteria include simultaneous dual-channel sampling at 2 MSPS, on-chip 2.5 V ±0.2% reference, flexible 0–VREF / 0–2×VREF input range selection, SPI/QSPI/MICROWIRE-compatible serial interface, and operation across −40°C to +125°C.
Technical Context
The AD7266BCPZ-REEL7 integrates two independent 12-bit 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 timing is fully controlled by SCLK frequency (up to 32 MHz).
It supports three analog input configurations per ADC-six single-ended, three fully differential, or three pseudo-differential channels-with independent RANGE and SGL/DIFF logic inputs. The device uses straight binary or twos complement output coding and allows external reference injection via DCAPA/DCAPB pins when REF SELECT = high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete digital codes for precise amplitude quantization in closed-loop control and sensor digitization. |
| Throughput Rate | 2 MSPS - enables real-time sampling of fast transients such as motor phase currents or power line harmonics without undersampling. |
| SNR (Differential) | 71 dB min @ 50 kHz - ensures high dynamic fidelity for low-noise signal chains in instrumentation and precision monitoring. |
| On-Chip Reference | 2.5 V ±0.2% @ 25°C, 20 ppm/°C max - eliminates need for external reference in space-constrained designs while maintaining system-level accuracy. |
| Power Consumption | 27 mW @ 5 V / 2 MSPS - balances speed and efficiency for battery-backed or thermally constrained embedded systems. |
| Input Range Options | 0 V to VREF or 0 V to 2×VREF - selectable via RANGE pin to optimize dynamic range for both unipolar and bipolar-scaled signals. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial drives, and harsh-environment telemetry applications. |
Pinout & Package
AD7266BCPZ-REEL7 is packaged in a 32-lead LFCSP (CP-32-7) with exposed thermal pad requiring soldering to PCB ground. Pin functions are validated per Analog Devices Rev. C datasheet Figure 2 and Table 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DGND (Pins 1, 29) | Digital Ground Reference | Reference for all digital I/O; must be tied to DGND plane and kept within 0.3 V of AGND to prevent noise coupling into conversion results. |
| AGND (Pins 5, 6, 19) | Analog Ground Reference | Reference for analog inputs, reference buffer, and internal analog circuitry; all three pins must connect to clean AGND plane. |
| VA1–VA6 / VB1–VB6 (Pins 7–12, 13–18) | Analog Input Channels | Two independent 6-channel banks (A/B); configurable as 6 single-ended, 3 fully differential, or 3 pseudo-differential pairs per ADC. |
| CS (Pin 26) | Chip Select / Conversion Trigger | Active-low signal that initiates sampling on falling edge and frames serial data transfer; defines acquisition instant with no latency uncertainty. |
| SCLK (Pin 27) | Serial Clock Input | Drives both conversion timing and serial readout; supports up to 32 MHz for 437.5 ns conversion time and 14-cycle data access. |
| DOUTA / DOUTB (Pins 28, 30) | Independent Serial Data Outputs | Simultaneously deliver 12-bit results from ADC A and ADC B; MSB-first format with two leading zeros; enable true parallel readout or time-multiplexed single-port use. |
| REF SELECT (Pin 2) | Reference Source Control | Logic input selecting internal 2.5 V reference (tied low) or external reference applied to DCAPA/DCAPB (tied high). |
| RANGE (Pin 21) | Analog Input Range Selector | Configures input span as 0–VREF (low) or 0–2×VREF (high), enabling optimal full-scale utilization for varying sensor output ranges. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous dual-channel sampling | Enables phase-aligned capture of correlated signals (e.g., current/voltage in power converters) without inter-channel skew or software synchronization overhead. |
| No pipeline delay | Guarantees deterministic, one-shot conversion latency tied directly to CS edge and SCLK frequency-critical for time-critical control loops. |
| Flexible analog input configuration | Single-pin control (SGL/DIFF + RANGE) reconfigures all 12 channels between single-ended, pseudo-differential, and fully differential modes without firmware change. |
| Low aperture jitter (50 ps typ) | Preserves SNR at high input frequencies (>100 kHz), essential for accurate FFT-based analysis and harmonic distortion measurement. |
| Channel-to-channel isolation (−88 dB typ) | Minimizes crosstalk between ADC A and ADC B during simultaneous sampling-vital for multi-sensor systems where signal integrity is paramount. |
Applications
| Motor Phase Current Sensing | Industrial PLC Analog Input Module |
|---|---|
Use Scenario: Real-time sampling of three-phase motor currents using shunt resistors or current transformers. IC Role / Device Role / Timing Role: Dual ADC simultaneously captures two phase currents with sub-ns timing alignment; third channel acquired sequentially via multiplexer. Use Value: Enables vector control algorithms with <1 µs inter-channel skew, preserving field-oriented control accuracy at high PWM frequencies. |
Use Scenario: High-density analog input card in programmable logic controllers handling multiple 4–20 mA or ±10 V sensor inputs. IC Role / Device Role / Timing Role: Provides two independent 12-bit digitization paths per AD7266BCPZ-REEL7, reducing component count versus discrete single-channel solutions. Use Value: Achieves 2 MSPS aggregate throughput across 6+ channels with shared serial interface, simplifying FPGA/DSP host interfacing and PCB layout. |
| Power Quality Monitoring | Automotive Battery Management System (BMS) |
Use Scenario: Simultaneous voltage and current sampling for harmonic analysis, THD calculation, and RMS computation in smart meters. IC Role / Device Role / Timing Role: ADC A acquires voltage waveform while ADC B acquires current waveform-both at identical sample instants for coherent phasor calculation. Use Value: Delivers 71 dB SNR and −75 dB SFDR at 50/60 Hz fundamentals, meeting IEC 61000-4-30 Class A accuracy requirements. |
Use Scenario: Cell voltage and temperature monitoring in high-voltage traction battery packs operating up to 125°C ambient. IC Role / Device Role / Timing Role: Digitizes isolated cell voltage outputs (via resistive dividers) and thermistor voltages with guaranteed −40°C to +125°C operation. Use Value: On-chip 2.5 V reference stability (±0.2% @ 25°C, 20 ppm/°C) ensures consistent ADC gain across temperature, reducing calibration burden in production. |
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 |
|---|---|---|---|
| AD7265BCPZ-REEL7 | 1 MSPS maximum throughput, otherwise identical architecture, pinout, and feature set. | Lower sampling rate limits suitability for high-speed transient capture (e.g., fault detection in inverters). | Select AD7265BCPZ-REEL7 only when 1 MSPS suffices and lower power (9 mW @ 3 V) is prioritized over speed. |
| ADS8860IRGET | Single-channel, 16-bit, 1 MSPS SAR ADC with SPI interface; no on-chip reference; requires external 2.5 V reference. | Lacks simultaneous dual-channel capability and integrated reference-requires additional components and board area. | Choose ADS8860IRGET only when higher resolution (16-bit) outweighs dual-channel concurrency and system integration benefits of AD7266BCPZ-REEL7. |
Compared with AD7265BCPZ-REEL7, the AD7266BCPZ-REEL7 delivers 2× throughput for time-critical acquisition, while versus ADS8860IRGET it trades resolution for integrated dual-channel functionality, on-chip reference, and reduced BOM complexity in multi-signal systems.
Availability
AD7266BCPZ-REEL7 is available at Aetrix Electronics and suitable for industrial motor control, power quality analyzers, and automotive battery management systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for AD7266BCPZ-REEL7 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, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD7266BCPZ-REEL7 belongs to Analog Devices' high-speed precision SAR ADC product line, engineered specifically for applications demanding simultaneous multi-channel sampling, low-latency conversion, and robust operation across extended temperature ranges.
FAQ
What is the maximum sampling rate supported by the AD7266BCPZ-REEL7?
The AD7266BCPZ-REEL7 supports a maximum throughput rate of 2 MSPS when operated with a 32 MHz SCLK and 5 V supplies. At this rate, conversion time is fixed at 437.5 ns (14 SCLK cycles), and power consumption is 27 mW. Performance remains fully specified down to 1.5 MSPS with 24 MHz SCLK and 3 V supplies.
Does the AD7266BCPZ-REEL7 require an external reference voltage?
No, the AD7266BCPZ-REEL7 includes an accurate on-chip 2.5 V reference with ±0.2% initial error at 25°C and 20 ppm/°C maximum drift. External reference is optional and enabled only when REF SELECT is driven high; in that case, the reference must be applied to DCAPA and/or DCAPB pins within 100 mV to VDD.
How does the AD7266BCPZ-REEL7 handle simultaneous dual-channel conversion?
The AD7266BCPZ-REEL7 contains two fully independent 12-bit SAR ADCs, each with its own 3-channel multiplexer and track-and-hold amplifier. A single CS falling edge triggers simultaneous sampling and conversion on both ADCs, with results appearing concurrently on DOUTA and DOUTB-ensuring zero inter-channel timing skew.
What analog input configurations are supported by the AD7266BCPZ-REEL7?
The AD7266BCPZ-REEL7 supports three configurations per ADC bank: six single-ended inputs (VA1–VA6, VB1–VB6), three fully differential pairs (e.g., VA1+/VA1−), or three pseudo-differential pairs. Configuration is controlled by the SGL/DIFF and RANGE pins, allowing runtime reconfiguration without changing hardware connections.
Is the AD7266BCPZ-REEL7 compatible with standard microcontroller SPI interfaces?
Yes, the AD7266BCPZ-REEL7 features a SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface. It operates with standard 3-wire SPI (CS, SCLK, DOUT) and supports MSB-first 14-bit frame format (two leading zeros + 12 data bits), making it interoperable with most ARM Cortex-M, Renesas RX, and TI C2000 microcontrollers without protocol translation.
AD7266BCPZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad, CSP
- 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-LFCSP-VQ (5x5)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7266BCPZ-REEL7 FAQ
1.How can I place an order for AD7266BCPZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7266BCPZ-REEL7 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 AD7266BCPZ-REEL7 reliable?
The price and inventory of AD7266BCPZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7266BCPZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7266BCPZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7266BCPZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7266BCPZ-REEL7?
AD7266BCPZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7266BCPZ-REEL7 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 AD7266BCPZ-REEL7?
For technical support, including AD7266BCPZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7266BCPZ-REEL7 requirements.
6.How does Aetrix verify that AD7266BCPZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7266BCPZ-REEL7 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 AD7266BCPZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7266BCPZ-REEL7?
All AD7266BCPZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7266BCPZ-REEL7, 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 AD7266BCPZ-REEL7 part is unused and in its original packaging.
Return procedure for AD7266BCPZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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