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Analog Devices Inc. AD7264BCPZ-5-RL7
- Part No.:
- AD7264BCPZ-5-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-VFQFN Exposed Pad, CSP
- Datasheet:
-
AD7264BCPZ-5-RL7.pdf
- Description:
- IC ADC 14BIT SAR 48LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,769
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Product details
Overview
AD7264BCPZ-5-RL7 from Analog Devices is a dual-channel, 14-bit, simultaneous-sampling SAR ADC with integrated PGA (×1 to ×128), four on-chip comparators, and 1 MSPS throughput per channel. It operates from a single 5 V supply, features 2.5 V internal reference, and targets precision sensor signal acquisition in motor control feedback loops.
For engineers reviewing the AD7264BCPZ-5-RL7 datasheet, AD7264BCPZ-5-RL7 pinout, AD7264BCPZ-5-RL7 application, or AD7264BCPZ-5-RL7 equivalent, key selection factors include simultaneous dual-channel sampling, programmable gain calibration, comparator propagation delay matching (±10 ns for C/D), SNR of 78 dB at gain = 2, and LFCSP-48 thermal performance (θJA = 30°C/W).
Technical Context
The AD7264BCPZ-5-RL7 integrates two independent SAR ADCs sharing a common clock domain, enabling true simultaneous sampling of differential analog inputs VA± and VB±. Each channel includes a low-noise, rail-to-rail input PGA with 14 discrete gain settings and on-chip offset/gain calibration registers.
Four dedicated comparators are partitioned into two low-power pairs (A/B) and two high-speed pairs (C/D), each with separate supply domains (CA_CBVCC and CC_CDVCC) and ground references (CA_CB_GND, CC_CD_GND), supporting independent voltage domain interfacing and precise timing-critical edge detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees monotonicity and no missing codes across full temperature range (−40°C to +105°C) |
| Throughput Rate | 1 MSPS per ADC - enables real-time capture of fast transients in closed-loop motor control systems |
| PGA Gain Range | ×1 to ×128 in 14 steps - supports direct interface to mV-level encoder signals without external amplification |
| SNR | 78 dB typical at gain = 2 - delivers >12.6 effective bits for high-fidelity position feedback digitization |
| Comparator Propagation Delay | 0.12 µs max for C/D at 5 V - enables sub-microsecond pole detection in high-RPM BLDC commutation |
| Reference | 2.5 V internal ±5 mV - eliminates need for external reference IC while maintaining 20 ppm/°C drift stability |
| Input Impedance | >1 GΩ - minimizes loading on high-impedance sensor outputs such as resolvers or LVDTs |
Pinout & Package
AD7264BCPZ-5-RL7 is housed in a 48-lead LFCSP (7 mm × 7 mm, 0.8 mm height) with exposed thermal pad requiring soldering to PCB ground for thermal management (θJC = 3°C/W) and noise reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA+, VA− | Differential analog input A | True differential front-end for ADC A; supports common-mode range up to AVCC/2 ± 0.4 V at gain ≥ 2 |
| VB+, VB− | Differential analog input B | Independent differential input for ADC B; enables simultaneous sampling with ADC A for phase-current monitoring |
| DOUTA, DOUTB | Serial data outputs | Simultaneous MSB-first twos-complement output streams; support SPI/QSPI/MICROWIRE interfaces up to 34 MHz SCLK |
| COUTA–COUTD | Comparator outputs | CMOS push-pull digital outputs referenced to VDRIVE; C/D pair achieves <0.13 µs propagation delay at 5 V |
| G0–G3 | PGA gain select inputs | Hardwired logic pins setting gain from ×1 to ×128; alternative register-based programming via PD0/DIN when all Gx = low |
| REFSEL | Reference source control | Logic-high selects internal 2.5 V reference; logic-low enables external reference injection via VREFA/VREFB |
Key Features
| Feature | Design Value |
|---|---|
| Dual simultaneous sampling | Eliminates inter-channel skew (<1 ns aperture mismatch), critical for vector-controlled PMSM current reconstruction |
| Integrated PGA with 14 gain options | Enables single-chip scaling of ±10 mV resolver outputs to full-scale ADC range without external op-amps or gain-switching circuitry |
| Four independent comparators | Supports concurrent rotor position sensing (A/B) and overcurrent protection (C/D) with separate supply domains and matched delays |
| On-chip offset and system gain calibration | Removes device-specific DC errors and compensates for sensor path gain drift, reducing factory calibration burden |
| LFCSP thermal performance | 30°C/W junction-to-ambient thermal resistance allows sustained 1 MSPS operation at +105°C ambient without derating |
Applications
| Motor Control Feedback | Industrial Sensor Interface |
|---|---|
Use Scenario: Real-time acquisition of dual-phase current and back-EMF signals in field-oriented controlled PMSM drives. IC Role / Device Role / Timing Role: Simultaneous dual-channel ADC captures IA and IB at exact same instant; PGA scales shunt voltage drops (±50 mV) to full-scale range. Use Value: Enables accurate torque estimation and dynamic current regulation with <1 ns inter-channel skew and 78 dB SNR at gain = 2. |
Use Scenario: Digitizing low-amplitude outputs from strain gauges, RTDs, and piezoelectric sensors in condition-monitoring systems. IC Role / Device Role / Timing Role: PGA amplifies µV–mV signals prior to 14-bit conversion; internal reference ensures stable full-scale definition across temperature. Use Value: Delivers 14-bit linearity (±3 LSB INL) and 2.5 µV/°C zero-code drift, eliminating need for external instrumentation amplifiers. |
| Encoder Position Monitoring | Power Quality Monitoring |
Use Scenario: Interfacing with analog encoders (sin/cos resolvers) in servo actuators requiring sub-arcminute angular resolution. IC Role / Device Role / Timing Role: Dual ADC channels sample sine and cosine outputs simultaneously; comparators detect zero-crossings for coarse position tracking. Use Value: Achieves <0.01° angular resolution using 14-bit conversion and ±10 ns C/D comparator delay matching for precise commutation timing. |
Use Scenario: Capturing transient voltage/current waveforms during grid fault events in smart breakers and energy meters. IC Role / Device Role / Timing Role: High-speed 1 MSPS sampling captures 50/60 Hz harmonics up to 17th order; 1.7 MHz bandwidth at gain = 2 preserves waveform fidelity. Use Value: Supports IEC 61000-4-30 Class A compliance with 77 dB SINAD and −97 dB SFDR for accurate harmonic distortion analysis. |
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 |
|---|---|---|---|
| AD7262BCPZ-RL7 | 12-bit resolution, no on-chip comparators, identical LFCSP-48 package and pinout | Lacks integrated comparators and 14-bit precision; suitable only where lower resolution and external zero-crossing detection are acceptable | Select when cost sensitivity outweighs need for 14-bit accuracy and on-chip event detection |
| ADS8684IPWR | 16-bit, 500 kSPS, integrated reference buffer but no PGA or comparators; TSSOP-38 package | Higher resolution but halved throughput and no simultaneous sampling; requires external PGA for low-level signals | Prefer for static high-precision measurements where speed and integrated signal conditioning are secondary |
Compared with AD7264BCPZ-5-RL7, AD7262BCPZ-RL7 trades 2 bits of resolution and all comparator functionality for lower power and cost, while ADS8684IPWR offers higher resolution at lower speed and lacks the integrated PGA/comparator subsystem essential for real-time motor control.
Availability
AD7264BCPZ-5-RL7 is available at Aetrix Electronics and suitable for motor control feedback, industrial sensor interface, encoder position monitoring, and power quality monitoring requiring stable component supply across extended temperature ranges.
Supply support for AD7264BCPZ-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 AD7264BCPZ-5-RL7 belongs to Analog Devices' precision SAR ADC product line, designed specifically for real-time, multi-channel signal acquisition in demanding industrial and motor control environments.
FAQ
What is the maximum guaranteed throughput rate of the AD7264BCPZ-5-RL7?
The AD7264BCPZ-5-RL7 guarantees 1 MSPS throughput per ADC channel under specified conditions (AVCC = 4.75 V to 5.25 V, fSCLK ≤ 34 MHz, TA = −40°C to +105°C). This rate is maintained for both channels simultaneously, with conversion time fixed at 19 × tSCLK cycles. The AD7264BCPZ-5-RL7 does not support oversampling modes that trade speed for resolution.
Does the AD7264BCPZ-5-RL7 support true differential analog inputs?
Yes, the AD7264BCPZ-5-RL7 provides true differential analog inputs for both channels: VA+ and VA− for ADC A, and VB+ and VB− for ADC B. Each pair accepts rail-to-rail common-mode voltages (e.g., VCM = AVCC/2 ± 0.4 V at gain ≥ 2) and delivers >76 dB CMRR at 50/60 Hz ripple frequencies, ensuring robust rejection of noise coupled into sensor cables.
How many gain settings does the integrated PGA in the AD7264BCPZ-5-RL7 support?
The AD7264BCPZ-5-RL7's programmable gain amplifier supports 14 discrete gain settings: ×1, ×2, ×3, ×4, ×6, ×8, ×12, ×16, ×24, ×32, ×48, ×64, ×96, and ×128. These are selected either via hardware pins G0–G3 or through the control register when all Gx pins are tied low, enabling flexible signal scaling for diverse sensor output ranges.
Can the AD7264BCPZ-5-RL7 operate without an external reference?
Yes, the AD7264BCPZ-5-RL7 includes an on-chip 2.5 V reference with ±5 mV accuracy at 25°C and 20 ppm/°C temperature coefficient. When REFSEL is tied high, this internal reference drives both ADCs. It can be disabled by pulling REFSEL low, allowing external reference injection via VREFA and/or VREFB pins for higher precision or custom voltage scaling.
What is the thermal resistance of the AD7264BCPZ-5-RL7 in its LFCSP package?
The AD7264BCPZ-5-RL7 in the 48-lead LFCSP package has a junction-to-ambient thermal resistance (θJA) of 30°C/W and junction-to-case (θJC) of 3°C/W, measured with the exposed paddle soldered to a solid PCB ground plane. This enables continuous 1 MSPS operation at +105°C ambient without thermal throttling, provided minimum copper area and via count per Analog Devices' layout guidelines are followed.
AD7264BCPZ-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:
- 14
- 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:
- -
AD7264BCPZ-5-RL7 FAQ
1.How can I place an order for AD7264BCPZ-5-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7264BCPZ-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 AD7264BCPZ-5-RL7 reliable?
The price and inventory of AD7264BCPZ-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 AD7264BCPZ-5-RL7 is usually 5 days.
3.What payment methods are accepted for AD7264BCPZ-5-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7264BCPZ-5-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7264BCPZ-5-RL7?
AD7264BCPZ-5-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7264BCPZ-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 AD7264BCPZ-5-RL7?
For technical support, including AD7264BCPZ-5-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7264BCPZ-5-RL7 requirements.
6.How does Aetrix verify that AD7264BCPZ-5-RL7 is sourced from the original manufacturer or authorized distributors?
All AD7264BCPZ-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 AD7264BCPZ-5-RL7 meets industry standards.
7.What is the process for return or replacement of AD7264BCPZ-5-RL7?
All AD7264BCPZ-5-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7264BCPZ-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 AD7264BCPZ-5-RL7 part is unused and in its original packaging.
Return procedure for AD7264BCPZ-5-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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