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Analog Devices Inc. AD7262BCPZ-5
- Part No.:
- AD7262BCPZ-5
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD7262BCPZ-5.pdf
- Description:
- IC ADC 12BIT SAR 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,351
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Product details
Overview
AD7262BCPZ-5 from Analog Devices is a dual-channel, 12-bit, simultaneous-sampling SAR ADC with integrated programmable gain amplifier (PGA) and four on-chip comparators. It operates from a single 5 V supply, delivers 500 kSPS throughput per channel, supports true differential analog inputs, and features 14 PGA gain settings (×1 to ×128). It is used in motor control systems for position feedback signal acquisition from analog encoders.
For engineers reviewing the AD7262BCPZ-5 datasheet, AD7262BCPZ-5 pinout, AD7262BCPZ-5 application, or AD7262BCPZ-5 equivalent, this page provides verified specifications, functional context, package mapping, calibrated performance data, and validated alternative options for sensor signal conditioning and real-time monitoring designs.
Technical Context
The AD7262BCPZ-5 implements two independent successive approximation register (SAR) ADCs with track-and-hold circuits, each preceded by a fully differential PGA supporting 14 discrete gain settings. Its dual simultaneous sampling architecture ensures time-aligned conversion of two analog channels without inter-channel skew.
It integrates four comparators-two low-power (A/B) and two fast-propagation (C/D)-with separate supply domains (CA_CBVCC and CC_CDVCC), independent ground references (CA_CB_GND/CC_CD_GND), and CMOS push-pull outputs referenced to VDRIVE. Calibration logic supports device offset correction and system-level gain compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - guarantees monotonic output and no missing codes across full operating range. |
| Throughput Rate | 500 kSPS per ADC - enables real-time capture of fast-changing encoder or current-sense signals at ≤2 µs conversion interval. |
| PGA Gain Range | ×1 to ×128 in 14 discrete steps - allows direct digitization of mV-level sensor outputs without external amplification. |
| SNR | 73 dB typical at gain = 2 - supports high-fidelity acquisition of low-noise analog position or voltage feedback signals. |
| Input Impedance | >1 GΩ - minimizes loading on high-impedance sources such as piezoelectric sensors or resistive divider networks. |
| On-Chip Reference | 2.5 V ±5 mV - eliminates need for external reference in cost-sensitive motor control or industrial monitoring applications. |
| Operating Temperature | −40°C to +105°C - qualified for under-hood automotive, industrial drive, and factory automation environments. |
Pinout & Package
The AD7262BCPZ-5 is housed in a 48-lead LFCSP (Lead Frame Chip Scale Package) with exposed metal paddle, requiring soldering to PCB ground for thermal management, noise reduction, and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA+, VA− / VB+, VB− | Differential analog inputs for ADC A and ADC B | Accept true differential signals up to ±2.5 V at gain = 2; support common-mode range from (AVCC/2) − 0.6 V to (AVCC/2) + 0.8 V depending on PGA gain. |
| G0–G3 | PGA gain selection inputs | Set one of 14 gain values (×1, ×2, ..., ×128); when all low, enable serial register programming via PD0/DIN. |
| DOUTA, DOUTB | Serial data outputs | Provide simultaneous 12-bit twos-complement results MSB-first; support dual-port readout or cascaded single-port access using 31 SCLK cycles. |
| COUTA–COUTD | Comparator digital outputs | CMOS push-pull outputs referenced to VDRIVE; A/B optimized for low power (≤8.5 µA), C/D for speed (≤0.13 µs propagation delay at 5 V). |
| VREFA, VREFB | Reference input/output pins | Source or sink 2.5 V internal reference; require 1 µF decoupling per pin; support external reference injection when REFSEL = GND. |
| REFSEL | Reference selection control | Logic-high selects internal 2.5 V reference; logic-low enables external reference connection to VREFA/VREFB. |
| PD0/DIN, PD1, PD2 | Power-down and serial data input | Three-pin encoding selects shutdown mode; when G0–G3 = low, PD0 functions as DIN for control register writes via SPI-compatible interface. |
| SCLK, CS, CAL | Serial interface and calibration control | SCLK clocks conversion and data transfer (max 20 MHz for AD7262BCPZ-5); CS initiates conversion; CAL triggers internal offset calibration sequence. |
Key Features
| Feature | Design Value |
|---|---|
| Dual simultaneous sampling | Enables precise phase-aligned capture of two sensor channels (e.g., sine/cosine encoder outputs) without timing skew or software synchronization overhead. |
| Integrated 14-step PGA | Eliminates external op-amp stages for signal scaling, reducing board area, component count, and gain error accumulation in multi-range sensing systems. |
| Four dedicated comparators | Supports pole counting in brushless DC motor commutation: low-power A/B for standby monitoring, fast C/D for real-time edge detection in closed-loop control. |
| On-chip 2.5 V reference | Provides stable, temperature-compensated reference (20 ppm/°C) with 20 µV rms noise-sufficient for 12-bit accuracy without external precision reference IC. |
| Calibration capability | Internal offset calibration removes device-specific errors; programmable gain adjust registers allow system-level compensation for sensor offset and path gain drift. |
Applications
| Motor Position Feedback | Industrial Current Sensing |
|---|---|
|
Use Scenario: Acquiring sine/cosine analog outputs from resolvers or analog encoders in servo drives and robotic joints. IC Role / Device Role / Timing Role: Dual simultaneous-sampling ADC with matched gain and timing paths ensures zero-phase-error digitization of quadrature signals for high-resolution angle computation. Use Value: Enables sub-arcminute angular resolution without external synchronization circuitry or post-processing alignment, directly supporting field-oriented control (FOC) algorithms. |
Use Scenario: Digitizing isolated shunt voltage drops in three-phase inverters for real-time overcurrent protection and torque regulation. IC Role / Device Role / Timing Role: PGA-configured ADC channel captures low-amplitude mV-level signals while rejecting common-mode noise from switching transients. Use Value: Delivers 500 kSPS sampling with 73 dB SNR at gain = 2, allowing accurate RMS current calculation and fast fault response within <2 µs latency. |
| Condition Monitoring Sensor Hub | Automotive Battery Cell Monitoring |
|
Use Scenario: Aggregating vibration, temperature, and pressure signals from multiple MEMS or thermistor sensors in predictive maintenance gateways. IC Role / Device Role / Timing Role: Dual ADC channels with independent PGA settings condition diverse sensor outputs; four comparators monitor threshold crossings for event-triggered logging. Use Value: Reduces system BOM by integrating signal conditioning, conversion, and level detection into one 48-lead package-cutting PCB space and interconnect complexity by >40% vs. discrete solutions. |
Use Scenario: Measuring individual cell voltages and temperatures in 12–48-cell Li-ion battery packs for EV and energy storage systems. IC Role / Device Role / Timing Role: Simultaneous sampling of adjacent cell pairs improves voltage delta accuracy; built-in comparators flag overvoltage/undervoltage events with <0.32 µs latency. Use Value: Supports ISO 26262 ASIL-B compliance through deterministic timing, on-chip calibration, and −40°C to +105°C operation without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, PGA-equipped SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7262BCPZ | Same pinout and feature set but rated for 1 MSPS throughput (vs. 500 kSPS); higher dynamic power (33.3 mA vs. 31.5 mA typical) | Better suited for applications requiring maximum sampling rate, e.g., high-bandwidth current loop control or wideband vibration analysis | Select AD7262BCPZ only if ≥1 MSPS per channel is required; AD7262BCPZ-5 offers identical functionality with lower power and relaxed timing margins. |
| AD7322BRUZ | 12-bit dual SAR ADC with ±10 V/±5 V/±2.5 V/0–10 V input ranges, no PGA, no comparators, 1 MSPS, 24-TSSOP package | Lacks integrated gain and comparator functions; requires external amplifiers and discrete comparators for equivalent signal chain functionality | Choose AD7322BRUZ only when fixed full-scale ranges suffice and board space permits added external components; AD7262BCPZ-5 provides higher integration and smaller footprint. |
Compared with AD7262BCPZ and AD7322BRUZ, the AD7262BCPZ-5 uniquely combines simultaneous dual-channel sampling, programmable gain, four comparators, and on-chip reference in a single 48-lead LFCSP-reducing total solution size and design effort for sensor-rich embedded systems.
Availability
AD7262BCPZ-5 is available at Aetrix Electronics and suitable for motor control, industrial current sensing, condition monitoring sensor hubs, and automotive battery cell monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7262BCPZ-5 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design and manufacturing facilities worldwide.
The AD7262 product line targets high-accuracy, real-time sensor signal acquisition in demanding industrial and automotive environments-designed to replace multi-component signal chains with a single, calibrated, temperature-stable data converter subsystem.
FAQ
What is the maximum sampling rate supported by the AD7262BCPZ-5?
The AD7262BCPZ-5 supports a maximum throughput rate of 500 kSPS per ADC channel. This is confirmed in the datasheet Rev. C, Table 1 (Conversion Rate section) and distinguishes it from the AD7262BCPZ, which supports 1 MSPS. The 500 kSPS rate is achieved with fSCLK = 20 MHz and ensures consistent timing margins for reliable serial interface operation in noisy industrial environments.
Does the AD7262BCPZ-5 include an internal voltage reference?
Yes, the AD7262BCPZ-5 includes an on-chip 2.5 V reference with ±5 mV accuracy at 25°C and 20 ppm/°C temperature coefficient. It can be enabled via the REFSEL pin (logic high) and sourced from VREFA/VREFB pins. When disabled, external references up to 5.25 V may be applied-providing flexibility for systems requiring tighter reference tolerance or different voltage levels.
How many gain settings does the PGA in the AD7262BCPZ-5 support?
The programmable gain amplifier (PGA) in the AD7262BCPZ-5 supports 14 discrete gain settings: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128. These are selected using the G0–G3 logic inputs. The gain configuration directly affects input bandwidth (e.g., 1.7 MHz at ×2, 1.2 MHz at ×128) and SNR (73 dB typical at ×2, 66 dB at ×32), enabling optimization for specific sensor signal amplitudes and frequency content.
Can the AD7262BCPZ-5 perform simultaneous sampling on both channels?
Yes, the AD7262BCPZ-5 features true dual simultaneous sampling: both ADCs acquire their respective analog inputs (VA± and VB±) at the exact same instant, eliminating inter-channel phase skew. This is essential for coherent quadrature signal processing (e.g., resolver-to-digital conversion) and is implemented via independent track-and-hold circuits synchronized by a shared conversion trigger-verified in the Functional Block Diagram and General Description sections of the datasheet.
What are the key differences between the comparators in the AD7262BCPZ-5?
The AD7262BCPZ-5 integrates four comparators divided into two optimized pairs: Comparators A and B are low-power (≤8.5 µA at 5.25 V), while Comparators C and D offer fast propagation delay (≤0.13 µs at 5 V). All share 1 GΩ input impedance and 0–4 V common-mode range at 5 V supply, but operate from separate supplies (CA_CBVCC for A/B, CC_CDVCC for C/D) and grounds-enabling independent power domain control and noise isolation in mixed-signal systems.
AD7262BCPZ-5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 2
- Input Type:
- Differential
- Data Interface:
- SPI, DSP
- Configuration:
- PGA-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- PGA, Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 48-LFCSP-VQ (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7262BCPZ-5 FAQ
1.How can I place an order for AD7262BCPZ-5 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7262BCPZ-5 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 AD7262BCPZ-5 reliable?
The price and inventory of AD7262BCPZ-5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7262BCPZ-5 is usually 5 days.
3.What payment methods are accepted for AD7262BCPZ-5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7262BCPZ-5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7262BCPZ-5?
AD7262BCPZ-5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7262BCPZ-5 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 AD7262BCPZ-5?
For technical support, including AD7262BCPZ-5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7262BCPZ-5 requirements.
6.How does Aetrix verify that AD7262BCPZ-5 is sourced from the original manufacturer or authorized distributors?
All AD7262BCPZ-5 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 AD7262BCPZ-5 meets industry standards.
7.What is the process for return or replacement of AD7262BCPZ-5?
All AD7262BCPZ-5 units undergo pre-shipment inspection (PSI). If there is an issue with AD7262BCPZ-5, 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 AD7262BCPZ-5 part is unused and in its original packaging.
Return procedure for AD7262BCPZ-5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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