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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Analog Devices Inc. AD4632-16BBCZ

Name: AD4632-16BBCZ
Brand: Analog Devices Inc.
SKU: AD4632-16BBCZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD4632-16BBCZ

Manufacturer:: Analog Devices Inc.

Category:: Analog to Digital Converters (ADC)

Package:: 64-FBGA, CSPBGA

Datasheet:: AD4632-16BBCZ.pdf

Description:: 16-BIT, 0.5 MSPS, DUAL

Quantity:: RFQ Add To RFQ list

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Product details

Overview

AD4632-16BBCZ from Analog Devices is a dual-channel, simultaneous-sampling, 16-bit SAR ADC optimized for high-precision industrial and scientific measurement systems. It delivers 500 kSPS per channel, ±3 ppm INL over −40°C to +125°C, 97.4 dB SNR, and −127 dB THD - enabling accurate digitization of low-noise sensor signals in automated test equipment and digital control loops.

For engineers reviewing the AD4632-16BBCZ datasheet, AD4632-16BBCZ pinout, AD4632-16BBCZ application, or AD4632-16BBCZ equivalent, this page provides verified specifications, validated pin functions, confirmed package mapping (64-ball CSP_BGA), real-world application contexts, and two technically documented alternative parts with explicit functional and application-level differences.

Technical Context

The AD4632-16BBCZ implements a successive approximation register architecture with simultaneous sampling across two independent analog input channels (IN0±, IN1±). Its Easy Drive™ input stage reduces charge kickback and enables direct interface with high-impedance sources, while the integrated reference buffer supports 4.096 V to 5 V external references with ±25 µV offset error and <0.3 µV/°C drift.

Digital interface flexibility is achieved via Flexi-SPI: configurable 1/2/4 SDO lanes per channel, echo clock mode for digital isolator compatibility, and support for SDR/DDR timing with 1.2 V–1.8 V logic levels. Internal bypass capacitors (1 µF on VDD_5V, 1 µF on VDD_1.8V, 2 µF on REF) eliminate external decoupling requirements in the 7 mm × 7 mm CSP_BGA package.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	16-bit - guarantees no missing codes and full monotonicity for precision metrology applications.
Throughput Rate	500 kSPS per channel - enables real-time capture of medium-bandwidth signals such as motor current feedback or vibration sensing.
INL Error	±3 ppm max (−40°C to +125°C) - ensures sub-LSB linearity stability across extended industrial temperature range without calibration.
SNR / THD	97.4 dB typical SNR, −127 dB typical THD - supports >15.5 ENOB for high-fidelity signal acquisition in seismology or medical instrumentation.
Input Current	0.6 µA at DC inputs - minimizes loading on high-impedance transducer outputs and simplifies front-end design.
Common-Mode Range	−(1/128)×VREF to +(129/128)×VREF - allows full-scale differential input swing without clipping, even with rail-to-rail common-mode offsets.
Reference Support	4.096 V to 5 V external reference with integrated buffer - eliminates need for external op-amp buffering and improves system noise floor.
Power Dissipation	10–14.2 mW total at 500 kSPS - enables thermally constrained designs in dense PCB layouts or sealed enclosures.

Pinout & Package

AD4632-16BBCZ is housed in a 7 mm × 7 mm, 64-ball Chip Scale Package Ball Grid Array (CSP_BGA) with internal 1 µF (VDD_5V), 1 µF (VDD_1.8V), and 2 µF (REF) bypass capacitors - reducing board area, component count, and layout sensitivity.

Pin/Terminal	Circuit Role	Design Meaning
IN0+, IN0− IN1+, IN1−	Differential analog inputs (Ch0, Ch1)	Accept ±(65/64)×VREF differential voltage; wide common-mode range supports direct connection to isolated amplifiers or resistive sensors.
REFIN	Buffered reference input	Accepts 4.096 V–5 V reference; internal buffer enables shared reference routing with other precision ICs without gain/phase errors.
REF	Unbuffered reference input	Alternative reference path when internal buffer is disabled; requires external 2 µF capacitor if used (internal cap not connected).
CNV	Convert trigger input	Rising-edge–sensitive; low-jitter requirement (<1.4 ps rms aperture jitter) preserves dynamic performance in time-critical sampling.
SDO0–SDO3 SDO4–SDO7	Serial data outputs (2×4 lanes)	Configurable per-channel SDO count (1/2/4) allows reduction of SCK frequency - e.g., 10 MHz SCK suffices for 500 kSPS with 4-lane mode.
BUSY/SCKOUT	Conversion status or echo clock output	In SPI mode: BUSY flag indicates active conversion; in echo mode: outputs inverted SCK for simplified digital isolation timing alignment.
CS, SDI, SCK	Standard SPI interface	Supports 1.2 V–1.8 V logic; tCSSCK min = 12.3 ns at VIO = 1.14 V - compatible with low-voltage microcontrollers and FPGAs.

Key Features

Feature	Design Value
Easy Drive™ analog inputs	0.6 µA input current and 60 pF acquisition-phase capacitance reduce settling burden on driving amplifiers and enable use of lower-power AFEs.
Programmable block averaging filter	Up to 2¹⁶ decimation ratio extends effective resolution to 30 bits for low-bandwidth DC or slow-varying signals (e.g., temperature or strain).
Integrated reference buffer	2 µF internal bypass + ±25 µV offset error eliminates external buffer op-amp and associated noise, drift, and PCB space.
Flexi-SPI interface	1/2/4 SDO lanes + echo clock mode relaxes timing constraints and removes need for external clock domain crossing logic when using digital isolators.
On-package bypass capacitors	1 µF (VDD_5V), 1 µF (VDD_1.8V), 2 µF (REF) integrated - cuts BOM count by ≥3 components and removes critical high-frequency decoupling layout dependencies.

Applications

Automatic Test Equipment (ATE)	Digital Control Loops
Use Scenario: High-accuracy parametric testing of semiconductor devices requiring synchronized dual-channel voltage/current measurement at 500 kSPS. IC Role / Device Role / Timing Role: Simultaneous sampling ADC capturing correlated analog stimuli and responses with <1.4 ps rms aperture jitter and ±3 ppm INL traceability. Use Value: Eliminates inter-channel skew-induced measurement uncertainty and enables single-shot characterization without post-processing alignment.	Use Scenario: Real-time current and position feedback acquisition in servo drives operating at 10–50 kHz PWM frequencies. IC Role / Device Role / Timing Role: Dual-channel SAR ADC providing synchronized, low-latency (2 µs cycle time) digitization of motor phase currents and encoder signals. Use Value: Enables predictive current control algorithms with deterministic timing and <0.01% gain error stability over temperature - improving torque ripple suppression.
Medical Instrumentation	Seismology
Use Scenario: Digitizing low-amplitude bio-potential signals (e.g., EEG, ECG) with minimal front-end gain to preserve dynamic range and reduce noise folding. IC Role / Device Role / Timing Role: Precision ADC with 97.4 dB SNR and −157.4 dBFS/Hz NSD serving as primary digitizer in battery-powered portable diagnostics. Use Value: Supports >15.5 ENOB at 500 kSPS without oversampling, allowing direct digitization of mV-level signals and extending battery life via low 14.2 mW power draw.	Use Scenario: Low-noise acquisition of ground motion signals from geophone arrays deployed in remote, unattended seismic monitoring stations. IC Role / Device Role / Timing Role: Dual-channel ADC with extended sample resolution (30-bit avg.) and −127 dB THD capturing sub-microvolt seismic transients over decades of amplitude range. Use Value: Delivers 140+ dB dynamic range in field-deployed systems without external programmable gain amplifiers - reducing failure points and calibration complexity.

Automatic Test Equipment (ATE)

Digital Control Loops

Use Scenario: High-accuracy parametric testing of semiconductor devices requiring synchronized dual-channel voltage/current measurement at 500 kSPS.

IC Role / Device Role / Timing Role: Simultaneous sampling ADC capturing correlated analog stimuli and responses with <1.4 ps rms aperture jitter and ±3 ppm INL traceability.

Use Value: Eliminates inter-channel skew-induced measurement uncertainty and enables single-shot characterization without post-processing alignment.

Use Scenario: Real-time current and position feedback acquisition in servo drives operating at 10–50 kHz PWM frequencies.

IC Role / Device Role / Timing Role: Dual-channel SAR ADC providing synchronized, low-latency (2 µs cycle time) digitization of motor phase currents and encoder signals.

Use Value: Enables predictive current control algorithms with deterministic timing and <0.01% gain error stability over temperature - improving torque ripple suppression.

Medical Instrumentation

Seismology

Use Scenario: Digitizing low-amplitude bio-potential signals (e.g., EEG, ECG) with minimal front-end gain to preserve dynamic range and reduce noise folding.

IC Role / Device Role / Timing Role: Precision ADC with 97.4 dB SNR and −157.4 dBFS/Hz NSD serving as primary digitizer in battery-powered portable diagnostics.

Use Value: Supports >15.5 ENOB at 500 kSPS without oversampling, allowing direct digitization of mV-level signals and extending battery life via low 14.2 mW power draw.

Use Scenario: Low-noise acquisition of ground motion signals from geophone arrays deployed in remote, unattended seismic monitoring stations.

IC Role / Device Role / Timing Role: Dual-channel ADC with extended sample resolution (30-bit avg.) and −127 dB THD capturing sub-microvolt seismic transients over decades of amplitude range.

Use Value: Delivers 140+ dB dynamic range in field-deployed systems without external programmable gain amplifiers - reducing failure points and calibration complexity.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel, 16-bit SAR ADC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD4630-16BBCZ	2 MSPS throughput, higher power (39 mW), identical INL/SNR specs, same package and pinout	Targeted at high-speed transient capture (e.g., power quality analysis), not low-power continuous monitoring	Select when sampling rate >500 kSPS is required; shares footprint and firmware interface but demands higher supply current.
ADS8924BRGER	Single-channel, 2 MSPS, 16-bit SAR; no integrated reference buffer; requires external 4.096 V reference and decoupling caps	Lacks simultaneous dual-channel sampling and on-die reference conditioning - unsuitable for phase-sensitive measurements	Choose only for cost-sensitive, single-input applications where board space permits external reference circuitry and timing alignment is non-critical.

Compared with AD4632-16BBCZ, AD4630-16BBCZ offers double the throughput at the expense of 2.8× higher power, while ADS8924BRGER sacrifices channel count, reference integration, and synchronization capability to reduce unit cost - making AD4632-16BBCZ optimal for thermally constrained, dual-signal, high-accuracy systems requiring minimal external components.

Availability

AD4632-16BBCZ is available at Aetrix Electronics and suitable for automatic test equipment, digital control loops, and medical instrumentation requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.

Supply support for AD4632-16BBCZ 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, serving industrial, automotive, communications, and healthcare markets since 1965.

The AD463x family was designed specifically for high-accuracy, low-power, dual-channel data acquisition in harsh environments - emphasizing thermal stability, integrated power management, and flexible digital interfacing for next-generation test and measurement systems.

FAQ

What is the maximum sampling rate supported by the AD4632-16BBCZ?

The AD4632-16BBCZ supports a maximum throughput rate of 500 kSPS per channel in simultaneous sampling mode. This is a fixed specification for the AD4632-16 variant - unlike the AD4630-16, which operates at 2 MSPS. The 500 kSPS rate is guaranteed across the full −40°C to +125°C temperature range and enables precise capture of medium-bandwidth signals such as motor current harmonics or vibration spectra without aliasing.

Does the AD4632-16BBCZ require external decoupling capacitors?

No, the AD4632-16BBCZ integrates all critical bypass capacitors internally: 1 µF for VDD_5V, 1 µF for VDD_1.8V, and 2 µF for the REF pin. This eliminates the need for external ceramic capacitors typically required for high-speed ADCs, significantly reducing PCB area, component count, and sensitivity to layout parasitics - a key enabler for compact, high-reliability industrial modules.

Can the AD4632-16BBCZ operate with a 4.096 V external reference?

Yes, the AD4632-16BBCZ supports an external reference voltage range of 4.096 V to 5 V on the REFIN pin when the internal reference buffer is enabled. At 4.096 V, the device maintains 97.1 dB SNR and 130 dB SFDR, with reference buffer offset error held to ±25 µV - making it ideal for systems using standard precision voltage references like the ADR4540 or REF5040.

How does the Easy Drive™ feature benefit system design with the AD4632-16BBCZ?

The Easy Drive™ input architecture of the AD4632-16BBCZ limits analog input current to just 0.6 µA during DC acquisition and reduces charge injection, allowing direct interface with high-output-impedance sensors and low-power op-amps. This eliminates the need for aggressive external buffering stages, lowers overall system power, and simplifies analog front-end design - especially critical in battery-operated or thermally limited applications.

Is the AD4632-16BBCZ pin-compatible with the AD4630-16BBCZ?

Yes, the AD4632-16BBCZ and AD4630-16BBCZ share identical 64-ball CSP_BGA packaging, pinout, and register map. They differ only in maximum throughput (500 kSPS vs. 2 MSPS), power consumption, and acquisition phase timing - enabling drop-in replacement in existing designs where lower sampling rate is acceptable and thermal/power budgets are tighter.

AD4632-16BBCZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 64-FBGA, CSPBGA

Packaging:: Tray

Product Status:: Active

Number of Bits:: 16

Sampling Rate (Per Second):: 500k

Number of Inputs:: 2

Input Type:: Differential, Single Ended

Data Interface:: SPI

Configuration:: ADC

Ratio - S/H:ADC:: 0:1

Number of A/D Converters:: 2

Architecture:: SAR

Reference Type:: Internal

Voltage - Supply, Analog:: 1.71V ~ 1.89V, 4.75V ~ 5.25V, 4.8V ~ 5.25V, 5.3V ~ 5.5V

Voltage - Supply, Digital:: 1.71V ~ 1.89V, 4.75V ~ 5.25V, 4.8V ~ 5.25V, 5.3V ~ 5.5V

Features:: Simultaneous Sampling

Operating Temperature:: -40°C ~ 125°C

Supplier Device Package:: 64-CSPBGA (7x7)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

AD4632-16BBCZ FAQ

1.How can I place an order for AD4632-16BBCZ through Aetrix?

Please submit a Request for Quotation (RFQ) for AD4632-16BBCZ 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 AD4632-16BBCZ reliable?

The price and inventory of AD4632-16BBCZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD4632-16BBCZ is usually 5 days.

3.What payment methods are accepted for AD4632-16BBCZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD4632-16BBCZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD4632-16BBCZ?

AD4632-16BBCZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD4632-16BBCZ 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 AD4632-16BBCZ?

For technical support, including AD4632-16BBCZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD4632-16BBCZ requirements.

6.How does Aetrix verify that AD4632-16BBCZ is sourced from the original manufacturer or authorized distributors?

All AD4632-16BBCZ 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 AD4632-16BBCZ meets industry standards.

7.What is the process for return or replacement of AD4632-16BBCZ?

All AD4632-16BBCZ units undergo pre-shipment inspection (PSI). If there is an issue with AD4632-16BBCZ, 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 AD4632-16BBCZ part is unused and in its original packaging.

Return procedure for AD4632-16BBCZ:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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