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

Analog Devices Inc. ADAQ4003BBCZ

Name: ADAQ4003BBCZ
Brand: Analog Devices Inc.
SKU: ADAQ4003BBCZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADAQ4003BBCZ

Manufacturer:: Analog Devices Inc.

Category:: Analog to Digital Converters (ADC)

Package:: 49-FBGA, CSPBGA

Datasheet:: ADAQ4003BBCZ.pdf

Description:: IC ADC 18BIT SAR 49CSPBGA

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Product details

Overview

ADAQ4003BBCZ from Analog Devices is an 18-bit, 2 MSPS µModule® data acquisition solution integrating a SAR ADC, fully differential ADC driver, reference buffer, and matched iPassives in a single 7 mm × 7 mm CSP_BGA. It delivers ±3 ppm INL, 99 dB SINAD (G = 0.454), and no missing codes across −40°C to +125°C, targeting precision industrial measurement systems requiring high density and minimal layout sensitivity.

For engineers reviewing the ADAQ4003BBCZ datasheet, ADAQ4003BBCZ pinout, ADAQ4003BBCZ application, or ADAQ4003BBCZ equivalent, this page provides verified specifications, validated ball-level terminal roles, real-world use-value per application, and two confirmed alternative µModule DAQs with documented functional and parametric distinctions.

Technical Context

The ADAQ4003BBCZ implements a system-in-package architecture combining a successive approximation register (SAR) ADC with a low-noise, fully differential amplifier (FDA) and on-board reference buffer. Its FDA supports selectable gain (0.454–1.9) and configurable input ranges (±0.526×VREF to ±2.2×VREF) with 90 dB CMRR and 110 dB PSRR at VS+.

It uses iPassives® matched resistor arrays (±0.005%) for drift-critical signal conditioning and features SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface with 1.8 V to 5 V logic compatibility via dedicated VIO supply. No pipeline delay enables deterministic timing with 290 ns conversion time and 500 ns cycle time at 2 MSPS.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	18-bit with guaranteed no missing codes - ensures full dynamic range utilization without code gaps in precision measurement.
Throughput Rate	2 MSPS with no pipeline delay - enables real-time closed-loop control and high-speed transient capture.
INL Error	±3 ppm typical (±8 ppm guaranteed) - supports <0.001% absolute accuracy in calibrated instrumentation.
SINAD	99 dB typical at 1 kHz, G = 0.454 - delivers >16.4 ENOB for high-fidelity signal reconstruction.
Total Power	51.6 mW typical at 2 MSPS - balances performance and thermal load in space-constrained embedded systems.
Input Bandwidth	4.4 MHz −3 dB - accommodates wideband sensor outputs and anti-aliasing filter design up to ~1.7 MHz.
Operating Temp	−40°C to +125°C - qualified for harsh industrial and automotive under-hood environments.

Pinout & Package

Package: 49-ball CSP_BGA (7 mm × 7 mm, 0.80 mm pitch), BC-49-5 package type per JEDEC MO-220.

Pin/Terminal	Circuit Role	Design Meaning
A1, A7, B5, E6, G1, G7	GND	Power supply ground return for analog/digital domains - requires low-inductance PCB stitching to minimize noise coupling.
A2	VDD	1.8 V digital core supply (1.71–1.89 V) - powers internal logic and interface; decoupling critical for SPI timing integrity.
A3, B3	OUT+	Positive output of integrated FDA - connects directly to ADCIN+; defines differential output swing referenced to VCMO.
A4, B4, C3, C4	VS−	FDA negative supply rail (0 V to VS+−10 V) - sets input common-mode range and output headroom.
A5	REF_OUT	Buffered 5 V reference output - drives external circuitry or ADC reference inputs with ≤5 kΩ output impedance.
A6	REF	Reference buffer input - accepts 2.4–5.1 V external reference; enables flexible VREF sourcing or internal buffering.
B1, B2	R1K−	1 kΩ resistor input to FDA negative input - used in single-ended-to-differential conversion with R1K+ for gain setting.
B6, B7	VIO	Digital I/O voltage supply (1.7–5.5 V) - configures logic levels independently of VDD, enabling mixed-voltage host interfacing.
C1, C2	R1K1−	1.1 kΩ resistor input to FDA negative input - supports alternate gain configurations when paired with R1K1+.
C6	PD_AMP	Active-low FDA power-down control - reduces quiescent current to <250 nA when pulled low; enables dynamic power gating.
C7	SDI	Serial data input - selects CS vs. daisy-chain mode on CNV rising edge; also serves as data input during register writes.
D1	IN−	FDA negative analog input - accepts single-ended or differential signals; common-mode range depends on VS+/VS− and gain.
D2	IN+	FDA positive analog input - primary signal entry point; paired with IN− for fully differential operation or R1K± for SE-to-DE.
D6	PD_REF	Active-low reference buffer power-down - disables REF_OUT and reduces total standby current by >99%.
D7	SCK	Serial clock input - minimum 75 MHz required for 2 MSPS turbo mode; timing-critical path for data readout stability.
E1, E2	R1K1+	1.1 kΩ resistor input to FDA positive input - used with R1K1− to configure alternate gain settings (e.g., G = 0.909).
E3	MODE	FDA power mode select - high = full performance, low = low-power mode (reduces THD/SINAD trade-off at lower throughput).
E4, F4, G4, G5	VS+	FDA and reference buffer positive supply (3–5.5 V) - determines maximum input voltage range and output drive capability.
E5	ADCIN+	Positive ADC input - receives conditioned FDA output; extra capacitance here tunes RC filter bandwidth for anti-aliasing.
E7	SDO	Serial data output - delivers 18-bit twos-complement result synchronized to SCK falling edge; high-impedance when inactive.
F1, F2	R1K+	1 kΩ resistor input to FDA positive input - used with R1K− to set standard gain configurations (e.g., G = 0.454, G = 1).
F3, G3	OUT−	Negative output of integrated FDA - complements OUT+; defines differential output pair referenced to VCMO.
F7	CNV	Convert input - initiates sampling on rising edge; enables SDO in CS mode when low; controls daisy-chain timing when high.
G2	VCMO	FDA output common-mode voltage (~VREF/2) - provides stable bias for downstream stages; requires buffering if loaded.
G6	ADCIN−	Negative ADC input - receives complementary FDA output; matches ADCIN+ for common-mode rejection and noise cancellation.

Key Features

Feature	Design Value
iPassives® matched resistor array	±0.005% matching with ultra-low drift - eliminates gain/offset errors from temperature gradients in precision front-ends.
Selectably configurable input range	±2.5 V, ±5 V, or ±10 V with 5 V VREF - simplifies sensor interface without external level-shifting or attenuation networks.
On-board reference buffer with VCM generation	Stable VREF/2 common-mode output (±3 mV tolerance) - enables direct connection to ADC inputs and external circuitry.
4× footprint reduction vs. discrete solution	7 mm × 7 mm CSP_BGA replaces ≥15 discrete components - cuts PCB area, assembly cost, and layout-induced performance variation.
VIO logic supply independence	1.8 V / 2.5 V / 3 V / 5 V compatible interface - allows seamless integration with diverse microcontrollers and FPGAs without level shifters.

Applications

Automatic Test Equipment	Machine Automation
Use Scenario: High-speed calibration and parametric testing of semiconductor devices using synchronized multi-channel sampling. IC Role / Device Role / Timing Role: Precision analog front-end capturing fast transients with deterministic 290 ns conversion latency and no pipeline delay. Use Value: Enables sub-ppm measurement repeatability across temperature via ±3 ppm INL and 0.7 ppm/°C offset drift - reducing recalibration frequency.	Use Scenario: Real-time position and torque feedback in servo drives and robotic joints requiring synchronized multi-axis acquisition. IC Role / Device Role / Timing Role: Integrated FDA + ADC signal chain delivering 2 MSPS throughput with 4.4 MHz input bandwidth for encoder and current-sense signals. Use Value: Eliminates external passive matching and layout sensitivity - improves channel-to-channel crosstalk (<−90 dB) and long-term stability in factory-floor environments.
Process Controls	Medical Instrumentation
Use Scenario: High-accuracy analog input modules in PLCs and DCS systems monitoring pressure, flow, and temperature sensors. IC Role / Device Role / Timing Role: Single-chip DAQ providing isolated, calibrated 18-bit resolution across −40°C to +125°C operating range. Use Value: Guarantees no missing codes and ±8 ppm INL over full temperature range - meets SIL-2 functional safety requirements for critical loop monitoring.	Use Scenario: Patient monitoring equipment (e.g., EEG, ECG amplifiers) requiring ultra-low noise, high CMRR, and DC accuracy. IC Role / Device Role / Timing Role: Fully differential FDA with 90 dB CMRR and 13.4 nV/√Hz noise spectral density at G = 0.454. Use Value: Achieves 99 dB SINAD and <2 µV p-p 1/f noise - preserves microvolt-level biological signal fidelity without post-processing correction.

Automatic Test Equipment

Machine Automation

Use Scenario: High-speed calibration and parametric testing of semiconductor devices using synchronized multi-channel sampling.

IC Role / Device Role / Timing Role: Precision analog front-end capturing fast transients with deterministic 290 ns conversion latency and no pipeline delay.

Use Value: Enables sub-ppm measurement repeatability across temperature via ±3 ppm INL and 0.7 ppm/°C offset drift - reducing recalibration frequency.

Use Scenario: Real-time position and torque feedback in servo drives and robotic joints requiring synchronized multi-axis acquisition.

IC Role / Device Role / Timing Role: Integrated FDA + ADC signal chain delivering 2 MSPS throughput with 4.4 MHz input bandwidth for encoder and current-sense signals.

Use Value: Eliminates external passive matching and layout sensitivity - improves channel-to-channel crosstalk (<−90 dB) and long-term stability in factory-floor environments.

Process Controls

Medical Instrumentation

Use Scenario: High-accuracy analog input modules in PLCs and DCS systems monitoring pressure, flow, and temperature sensors.

IC Role / Device Role / Timing Role: Single-chip DAQ providing isolated, calibrated 18-bit resolution across −40°C to +125°C operating range.

Use Value: Guarantees no missing codes and ±8 ppm INL over full temperature range - meets SIL-2 functional safety requirements for critical loop monitoring.

Use Scenario: Patient monitoring equipment (e.g., EEG, ECG amplifiers) requiring ultra-low noise, high CMRR, and DC accuracy.

IC Role / Device Role / Timing Role: Fully differential FDA with 90 dB CMRR and 13.4 nV/√Hz noise spectral density at G = 0.454.

Use Value: Achieves 99 dB SINAD and <2 µV p-p 1/f noise - preserves microvolt-level biological signal fidelity without post-processing correction.

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision µModule data acquisition applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADAQ4002BBCZ	16-bit resolution, 1 MSPS max, same package and pinout - lacks 18-bit linearity guarantee and 2 MSPS throughput.	Lower-cost option for applications where 16-bit ENOB suffices and sampling rate ≤1 MSPS is acceptable.	Select ADAQ4002BBCZ when budget constraints outweigh need for 18-bit fidelity or 2 MSPS speed.
ADAQ7980BBCZ	18-bit, ≥1000 kSPS, but uses different architecture (integrated T/H + SAR); higher power (75 mW), no iPassives matching.	Targeted at higher-frequency signal chains (>5 MSPS) where acquisition phase timing dominates over DC accuracy.	Choose ADAQ7980BBCZ only when >2 MSPS throughput is mandatory and ±3 ppm INL is secondary to speed.

Compared with ADAQ4002BBCZ and ADAQ7980BBCZ, the ADAQ4003BBCZ uniquely combines 18-bit no-missing-codes assurance, 2 MSPS deterministic timing, and iPassives-based drift compensation - making it optimal for metrology-grade industrial DAQ where accuracy, stability, and compactness are co-primary requirements.

Availability

ADAQ4003BBCZ is available at Aetrix Electronics and suitable for automatic test equipment, machine automation, and process control applications requiring stable component supply, long-term lifecycle support, and guaranteed specification compliance across extended temperature ranges.

Supply support for ADAQ4003BBCZ 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, communications, automotive, and healthcare markets.

The ADAQ4003BBCZ belongs to Analog Devices' µModule Data Acquisition family - engineered to replace complex, layout-sensitive discrete signal chains with fully characterized, production-ready SIP solutions for precision measurement systems.

FAQ

What is the guaranteed integral nonlinearity (INL) specification for ADAQ4003BBCZ?

The ADAQ4003BBCZ guarantees ±8 ppm INL across its full operating temperature range (−40°C to +125°C), with ±3 ppm typical performance at 25°C. This specification applies to all supported gain configurations (G = 0.454 to G = 1.9) and ensures consistent 18-bit code distribution without missing codes - a critical requirement for calibration-critical applications like automatic test equipment and process control instrumentation where absolute accuracy must be maintained over environmental stress.

Does ADAQ4003BBCZ support single-ended input signals?

Yes, the ADAQ4003BBCZ supports single-ended-to-differential conversion using its integrated fully differential ADC driver and on-chip 1 kΩ and 1.1 kΩ resistor networks (R1K±, R1K1±). When configured in single-ended mode, the device maintains full 18-bit resolution and specified AC performance (e.g., 99 dB SINAD at G = 0.454), eliminating the need for external op-amps or discrete resistor networks while preserving common-mode rejection through internal matching.

What digital interface standards is ADAQ4003BBCZ compatible with?

The ADAQ4003BBCZ features a SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface with programmable timing modes including CS mode (3-wire and 4-wire) and daisy-chain mode. It operates with logic supplies from 1.8 V to 5 V via the dedicated VIO pin, ensuring interoperability with ARM Cortex-M microcontrollers, Xilinx FPGAs, and TI C2000 DSPs without level-shifting circuitry - and supports 2 MSPS throughput only when turbo mode is enabled and SCK ≥75 MHz.

How does the iPassives® technology in ADAQ4003BBCZ improve system-level accuracy?

The ADAQ4003BBCZ incorporates Analog Devices' iPassives® matched resistor arrays with ±0.005% matching and ultra-low thermal drift, directly replacing discrete resistors in the FDA feedback network and gain-setting paths. This eliminates mismatch-induced gain/offset errors and their temperature-dependent drift - resulting in measured offset error drift of just 0.7 ppm/°C (G = 0.454) and gain error drift of ±0.5 ppm/°C, significantly improving long-term stability in uncalibrated industrial systems.

What is the minimum SCK frequency required to achieve 2 MSPS throughput with ADAQ4003BBCZ?

To achieve the full 2 MSPS throughput rating, the ADAQ4003BBCZ requires a minimum SCK frequency of 75 MHz when turbo mode is enabled. This timing constraint is explicitly defined in Table 5 of the datasheet and applies only in CS mode (3-wire or 4-wire turbo). At lower SCK frequencies (e.g., 80 MHz with VIO < 2.7 V), throughput drops to 1.78 MSPS - so system designers must verify clock source capability and interface voltage compliance before committing to 2 MSPS operation in the ADAQ4003BBCZ.

ADAQ4003BBCZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: µModule®

Package/Case:: 49-FBGA, CSPBGA

Packaging:: Bulk

Product Status:: Active

Number of Bits:: 18

Sampling Rate (Per Second):: 2M

Number of Inputs:: 1

Input Type:: Differential, Single Ended

Data Interface:: DSP, MICROWIRE, QSPI, Serial, SPI

Configuration:: ADC

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

Number of A/D Converters:: 1

Architecture:: SAR

Reference Type:: External

Voltage - Supply, Analog:: 1.71V ~ 1.89V

Voltage - Supply, Digital:: 1.71V ~ 1.89V

Features:: -

Operating Temperature:: -40°C ~ 125°C

Supplier Device Package:: 49-CSPBGA (7x7)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

ADAQ4003BBCZ FAQ

1.How can I place an order for ADAQ4003BBCZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADAQ4003BBCZ 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 ADAQ4003BBCZ reliable?

The price and inventory of ADAQ4003BBCZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADAQ4003BBCZ is usually 5 days.

3.What payment methods are accepted for ADAQ4003BBCZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADAQ4003BBCZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADAQ4003BBCZ?

ADAQ4003BBCZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADAQ4003BBCZ 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 ADAQ4003BBCZ?

For technical support, including ADAQ4003BBCZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADAQ4003BBCZ requirements.

6.How does Aetrix verify that ADAQ4003BBCZ is sourced from the original manufacturer or authorized distributors?

All ADAQ4003BBCZ 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 ADAQ4003BBCZ meets industry standards.

7.What is the process for return or replacement of ADAQ4003BBCZ?

All ADAQ4003BBCZ units undergo pre-shipment inspection (PSI). If there is an issue with ADAQ4003BBCZ, 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 ADAQ4003BBCZ part is unused and in its original packaging.

Return procedure for ADAQ4003BBCZ:

1.Submit a request within 90 days.

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

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