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Analog Devices Inc. AD7262BCPZ-5-RL7
- Part No.:
- AD7262BCPZ-5-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD7262BCPZ-5-RL7.pdf
- Description:
- IC ADC 12BIT SAR 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,705
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Product details
Overview
AD7262BCPZ-5-RL7 from Analog Devices is a dual-channel, 12-bit, simultaneous-sampling SAR ADC with integrated PGA (×1 to ×128), four on-chip comparators, and internal 2.5 V reference. It delivers 1 MSPS throughput per channel, supports true differential analog inputs, and operates across −40°C to +105°C for motor control position feedback and sensor monitoring applications.
For engineers reviewing the AD7262BCPZ-5-RL7 datasheet, AD7262BCPZ-5-RL7 pinout, AD7262BCPZ-5-RL7 application, or AD7262BCPZ-5-RL7 equivalent, this page provides verified specifications, validated pin functions, confirmed comparator timing behavior, calibrated DC accuracy data, and real-world motor encoder interface use cases - all specific to the AD7262BCPZ-5-RL7 variant in 48-lead LFCSP.
Technical Context
The AD7262BCPZ-5-RL7 implements two independent successive approximation register (SAR) ADCs with track-and-hold stages, each preceded by a programmable gain amplifier supporting 14 discrete gain settings. Its dual simultaneous sampling architecture ensures synchronized acquisition of two analog signals without inter-channel skew.
It integrates four comparators: Comparator A/B optimized for low power (3–8.5 µA total), and Comparator C/D optimized for speed (0.12–0.32 µs propagation delay). All comparators share independent supply domains (CA_CBVCC/CC_CDVCC) and ground references (CA_CB_GND/CC_CD_GND), enabling mixed-voltage signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - guarantees 4096 distinct digital codes with no missing codes over full operating range. |
| Throughput Rate | 1 MSPS per ADC - enables real-time capture of fast-changing encoder or current-sense waveforms at ≤1 µs sampling interval. |
| PGA Gain Range | ×1 to ×128 in 14 steps - allows direct digitization of mV-level sensor outputs (e.g., RTD, thermocouple, strain gauge) without external amplification. |
| SNR | 73 dB typical at gain = 2 - supports high-fidelity measurement of small-signal transients in noisy industrial environments. |
| Input Impedance | >1 GΩ - minimizes loading error on high-impedance sources such as piezoelectric sensors or capacitive encoders. |
| Reference | Internal 2.5 V ±5 mV - eliminates need for external reference IC while maintaining 20 ppm/°C drift and 20 µVrms noise. |
| Operating Temp | −40°C to +105°C - qualified for under-hood automotive motor control and industrial servo drive applications. |
Pinout & Package
AD7262BCPZ-5-RL7 is housed in a 48-lead LFCSP (7 mm × 7 mm, 0.8 mm height) with exposed metal paddle soldered to PCB ground for thermal and noise performance. Pin functions are validated per Analog Devices Rev. C datasheet Figures 3–4 and Table 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA+, VA− / VB+, VB− | Differential analog inputs for ADC A and ADC B | True differential front-end accepts ±VREF/GAIN input range; supports common-mode rejection up to −90 dB between channels. |
| DOUTA, DOUTB | Serial data outputs | Simultaneous MSB-first twos-complement output streams; each carries 12-bit result from its respective ADC after 19 SCLK edges. |
| G0–G3 | PGA gain selection inputs | Binary-coded gain control (e.g., G3G2G1G0 = 0001 → ×2); alternative programming via DIN/PD0 when all pins grounded. |
| COUTA–COUTD | Comparator digital outputs | CMOS push-pull outputs referenced to VDRIVE; support direct connection to FPGA GPIO or microcontroller interrupt pins. |
| VREFA, VREFB | Reference input/output terminals | Buffered 2.5 V reference source; can drive external circuitry or accept external reference when REFSEL = GND. |
| REFSEL | Reference selection control | Logic-high selects internal 2.5 V reference; logic-low enables external reference injection via VREFA/VREFB pins. |
| PD0/DIN, PD1, PD2 | Power-down and serial data input | Three-pin encoding selects shutdown mode (0.5–1 µA); PD0 becomes DIN when G0–G3 = 0000 for register-based configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Dual simultaneous sampling | Eliminates phase mismatch in multi-axis motor control feedback loops; enables precise rotor position estimation from two encoder channels. |
| Four integrated comparators | Two low-power (A/B) and two high-speed (C/D) comparators allow concurrent zero-crossing detection and pole counting in BLDC commutation. |
| On-chip offset and gain calibration | Removes device-specific errors and compensates for sensor path offsets/gain drift - reduces system-level calibration effort in production test. |
| Flexible reference architecture | Internal 2.5 V reference can be disabled; VREFA/VREFB pins support daisy-chained reference distribution to adjacent signal chains. |
| High input impedance & wide bandwidth | 1 GΩ input impedance prevents loading of high-Z sensors; 1.7 MHz −3 dB bandwidth at gain = 2 preserves fast transient response. |
Applications
| Motor Position Feedback | Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Monitoring analog sine/cosine outputs from resolvers or analog encoders in servo drives and robotics. IC Role / Device Role / Timing Role: Simultaneously samples both resolver windings with matched acquisition timing to compute accurate angular position via arctangent calculation. Use Value: Dual 1 MSPS sampling eliminates inter-channel latency skew, improving position resolution to <0.01° mechanical accuracy at 10 kHz update rates. |
Use Scenario: Digitizing low-amplitude outputs from strain gauges, thermopiles, or piezoresistive pressure sensors in industrial instrumentation. IC Role / Device Role / Timing Role: PGA amplifies mV-range signals before conversion; internal reference ensures stable scaling across temperature and supply variations. Use Value: 14 gain options and 73 dB SNR at gain = 2 enable direct interface to unamplified sensors - reducing BOM count and board area by eliminating external op-amps. |
| Current Sensing in Inverters | Multi-Channel Data Acquisition |
|
Use Scenario: Measuring phase currents in three-phase motor inverters using shunt resistors and isolated amplifiers. IC Role / Device Role / Timing Role: Samples two current channels simultaneously to reconstruct instantaneous three-phase current vector; comparators trigger overcurrent protection within 0.12 µs. Use Value: Integrated comparators with sub-0.3 µs propagation delay provide hardware-fast fault response - critical for IGBT short-circuit protection before thermal damage occurs. |
Use Scenario: High-precision logging of multiple analog parameters (voltage, temperature, vibration) in predictive maintenance edge nodes. IC Role / Device Role / Timing Role: Dual ADC channels acquire synchronized voltage and temperature readings; SPI interface enables burst reads at 40 MHz clock rate. Use Value: Single-chip dual acquisition reduces component count vs. two discrete ADCs; 12-bit resolution with ±0.5 LSB INL ensures traceable metrology-grade measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel SAR ADC with PGA applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7262BRUZ | LQFP-48 package; higher θJA (55°C/W vs. 30°C/W); same electrical specs and pinout. | Better suited for prototyping or low-volume assemblies where reworkability matters more than thermal density. | Select AD7262BRUZ if manual soldering or visual inspection is required; AD7262BCPZ-5-RL7 preferred for high-reliability, thermally constrained motor control PCBs. |
| AD7265BCPZ | 14-bit resolution; 1 MSPS per channel; no integrated comparators; different gain range (×1–×8 only). | Used where higher resolution outweighs need for hardware comparators - e.g., precision power quality analyzers. | Choose AD7265BCPZ only when 14-bit linearity is mandatory and external comparators are acceptable; AD7262BCPZ-5-RL7 retains integrated fault-detection capability. |
Compared with AD7262BRUZ and AD7265BCPZ, the AD7262BCPZ-5-RL7 uniquely combines 12-bit simultaneous sampling, 14-step PGA, four dedicated comparators, and LFCSP thermal performance - making it optimal for space-constrained, high-speed motor control systems requiring both precision and real-time fault response.
Availability
AD7262BCPZ-5-RL7 is available at Aetrix Electronics and suitable for motor control feedback, industrial sensor interfaces, inverter current monitoring, and multi-channel data acquisition requiring stable component supply and long-term lifecycle assurance.
Supply support for AD7262BCPZ-5-RL7 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.
The AD7262 product line targets high-accuracy, real-time analog acquisition in motion control and industrial automation - integrating PGA, dual SAR ADCs, comparators, and reference into a single chip to simplify encoder and current-sensing subsystems.
FAQ
What is the maximum throughput rate supported by the AD7262BCPZ-5-RL7?
The AD7262BCPZ-5-RL7 supports a maximum throughput rate of 1 MSPS per ADC channel. This is achieved with fSCLK = 40 MHz and requires 19 SCLK cycles per conversion. The device maintains this rate across its full operating temperature range (−40°C to +105°C) when powered from AVCC = 4.75 V to 5.25 V and using the internal 2.5 V reference.
Does the AD7262BCPZ-5-RL7 include an internal voltage reference?
Yes, the AD7262BCPZ-5-RL7 integrates a precision 2.5 V reference with ±5 mV initial accuracy at 25°C, 20 ppm/°C temperature coefficient, and 20 µVrms noise. The reference is accessible at pins VREFA and VREFB and can be disabled via the REFSEL pin to allow external reference use.
How many gain settings does the PGA in the AD7262BCPZ-5-RL7 support?
The programmable gain amplifier (PGA) in the AD7262BCPZ-5-RL7 supports 14 discrete gain settings: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128. Gain is selected either via hardware pins G0–G3 or through the control register when PD0 is configured as DIN.
What are the key differences between the comparators in the AD7262BCPZ-5-RL7?
The AD7262BCPZ-5-RL7 contains four comparators: Comparators A and B are optimized for ultra-low power (3–8.5 µA total), while Comparators C and D prioritize speed with propagation delays as low as 0.12 µs (at 5 V supply). Each pair has independent supply (CA_CBVCC/CC_CDVCC) and ground (CA_CB_GND/CC_CD_GND) domains.
Is the AD7262BCPZ-5-RL7 pin-compatible with other members of the AD7262 family?
Yes, the AD7262BCPZ-5-RL7 shares identical pinout and footprint with AD7262BRUZ (LQFP-48) and AD7262BCPZ (same LFCSP package), including matching signal assignments for DOUTA/DOUTB, COUTA–COUTD, VA+/VA−, VB+/VB−, and control pins like CS, SCLK, CAL, and REFSEL.
AD7262BCPZ-5-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-VFQFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- 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-RL7 FAQ
1.How can I place an order for AD7262BCPZ-5-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7262BCPZ-5-RL7 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-RL7 reliable?
The price and inventory of AD7262BCPZ-5-RL7 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-RL7 is usually 5 days.
3.What payment methods are accepted for AD7262BCPZ-5-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7262BCPZ-5-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7262BCPZ-5-RL7?
AD7262BCPZ-5-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7262BCPZ-5-RL7 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-RL7?
For technical support, including AD7262BCPZ-5-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7262BCPZ-5-RL7 requirements.
6.How does Aetrix verify that AD7262BCPZ-5-RL7 is sourced from the original manufacturer or authorized distributors?
All AD7262BCPZ-5-RL7 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-RL7 meets industry standards.
7.What is the process for return or replacement of AD7262BCPZ-5-RL7?
All AD7262BCPZ-5-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7262BCPZ-5-RL7, 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-RL7 part is unused and in its original packaging.
Return procedure for AD7262BCPZ-5-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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