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Analog Devices Inc. AD4003BCPZ-RL7
- Part No.:
- AD4003BCPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
AD4003BCPZ-RL7.pdf
- Description:
- IC ADC 18BIT SAR 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:1,526
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Product details
Overview
AD4003BCPZ-RL7 from Analog Devices is a high-accuracy, 18-bit, 2 MSPS differential successive approximation register (SAR) ADC with Easy Drive architecture, operating from a single 1.8 V supply and supporting external reference voltages from 2.4 V to 5.1 V. It delivers ±1.0 LSB INL, 100.5 dB SNR at 1 kHz, and features input overvoltage clamp protection sinking up to 50 mA - enabling direct connection to industrial sensor front-ends in precision data acquisition systems.
For engineers reviewing the AD4003BCPZ-RL7 datasheet, AD4003BCPZ-RL7 pinout, AD4003BCPZ-RL7 application, or AD4003BCPZ-RL7 equivalent, key selection considerations include its 2 MSPS throughput with turbo mode, 290 ns acquisition phase, 1.8 V logic compatibility via VIO, and guaranteed operation from −40°C to +125°C in harsh environments.
Technical Context
The AD4003BCPZ-RL7 implements a differential SAR architecture with integrated input span compression and high-Z acquisition mode, allowing single-supply operation without negative rail support while preserving full 18-bit code range. Its Easy Drive design reduces input current to 0.5 μA/MSPS and extends acquisition time to ≥79% of cycle time at 1 MSPS - eliminating need for dedicated op-amp drivers in many configurations.
It supports SPI/QSPI/MICROWIRE/DSP-compatible serial interfaces with configurable 3-wire or 4-wire modes, daisy-chain capability, and six status bits. The input overvoltage clamp activates at 5.25 V (VREF = 5 V), limiting transient-induced reference disturbance and removing external protection diodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 18-bit, no missing codes - guarantees monotonicity and full code coverage for metrology-grade measurements. |
| Throughput Rate | 2 MSPS (turbo mode enabled) - enables accurate capture of signals up to 10 MHz bandwidth with oversampling flexibility. |
| INL Error | ±1.0 LSB max - ensures absolute accuracy within ±3.8 ppm of full scale for calibration-critical applications. |
| SNR @ 1 kHz | 100.5 dB (VREF = 5 V) - provides >16.7 effective number of bits (ENOB) for high-fidelity signal reconstruction. |
| Input Voltage Range | Differential ±VREF (up to ±5.1 V) - supports wide dynamic range sensors without external level-shifting. |
| Power Dissipation | 16 mW at 2 MSPS (total), 2.4 mW on VDD only - enables low-power, high-density channel designs in battery or thermally constrained systems. |
| Operating Temperature | −40°C to +125°C - qualified for industrial automation, motor control, and downhole instrumentation. |
Pinout & Package
AD4003BCPZ-RL7 is housed in a 10-lead, 3 mm × 3 mm LFCSP package with exposed pad (CP-10-3), optimized for thermal performance and board space efficiency in high-channel-count systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+ | Differential analog input positive | Accepts high-impedance voltage signal; clamped to VREF + 0.4 V max; supports span compression for single-supply amplifiers. |
| IN− | Differential analog input negative | Completes differential pair; matched to IN+ for CMRR >68 dB at 500 kHz; shares same overvoltage clamp behavior. |
| VREF | External reference voltage input | Accepts 2.4 V–5.1 V; supplies internal DAC and determines full-scale range; draws ≤1.1 mA at 2 MSPS. |
| VDD | Analog core supply | 1.71 V–1.89 V only; powers SAR array and internal logic; contributes 2.4 mW at 2 MSPS (VDD-only power). |
| VIO | Digital I/O supply | 1.71 V–5.5 V; sets logic thresholds independently; enables interface with 1.8 V/2.5 V/3.3 V/5 V hosts without level shifters. |
| SDO | Serial data output | 18-bit twos-complement MSB-first; tri-state capable; valid after SCK falling edge with <10.5 ns hold time (VIO ≤ 2.7 V). |
| SDI | Serial data input | Configures mode registers (e.g., turbo, high-Z); requires 2 ns setup/hold relative to CNV or SCK edges. |
| SCK | Serial clock input | Supports up to 100 MHz (VIO ≥ 2.7 V); minimum period 9.8 ns; 50% duty cycle required for reliable timing. |
| CNV | Conversion start trigger | Rising-edge initiated; initiates sampling; must meet tQUIET1 (190 ns) and tQUIET2 (60 ns) timing for optimal SINAD. |
| GND | Analog/digital ground | Single ground pin; requires low-inductance connection to PCB ground plane; exposed pad must be soldered for thermal and noise integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Easy Drive input architecture | Reduces input current to 0.5 μA/MSPS and extends acquisition phase to 290 ns at 2 MSPS - eliminates need for high-speed, high-output-current driver amplifiers. |
| Input span compression | Shifts input range to 0.1×VREF to 0.9×VREF when enabled - allows use of single-supply op-amps while retaining full 18-bit code utilization. |
| Integrated overvoltage clamp | Sinks up to 50 mA per input at 5.4 V (VREF = 5 V) - protects ADC and reference from transients without external diodes or resistors. |
| Turbo mode operation | Enables 2 MSPS throughput with ≥75 MHz SCK - reduces digital interface speed requirements and eases isolation barrier design. |
| High-Z acquisition mode | Reduces input current to 1 μA during conversion at 2 MSPS - improves settling in multiplexed or high-source-impedance sensor arrays. |
Applications
| Precision Industrial Sensor Interface | High-Speed Battery Monitoring |
|---|---|
|
Use Scenario: Digitizing outputs from strain gauges, RTDs, and load cells in PLC analog input modules with ±10 V or ±5 V ranges. IC Role / Device Role / Timing Role: Primary SAR ADC capturing synchronized multi-channel measurements at 2 MSPS with deterministic latency and no pipeline delay. Use Value: ±1.0 LSB INL and 100.5 dB SNR ensure sub-0.01% measurement accuracy across temperature; input clamp protects against field-wiring faults. |
Use Scenario: Real-time cell voltage and temperature sampling in EV battery management systems (BMS) requiring simultaneous 12+ cell monitoring. IC Role / Device Role / Timing Role: High-throughput, low-latency ADC interfacing directly to isolated front-end amplifiers with minimal external components. Use Value: 2.4 mW VDD-only power at 500 kSPS enables ultra-low quiescent current in sleep-mode BMS; 1.8 V logic compatibility simplifies MCU integration. |
| Automated Test Equipment (ATE) | Medical Imaging Signal Chain |
|
Use Scenario: High-fidelity waveform digitization in modular ATE platforms where channel density and thermal management are critical. IC Role / Device Role / Timing Role: Precision acquisition node in multi-slot PXI chassis, leveraging daisy-chain SPI to minimize interconnect count and routing complexity. Use Value: Oversampled dynamic range of 130.5 dB (OSR = 1024) enables software-defined filtering and resolution enhancement without hardware redesign. |
Use Scenario: Digitizing low-noise, low-amplitude signals from ultrasound transducer arrays or MRI gradient coils. IC Role / Device Role / Timing Role: Final-stage ADC in analog front-end, converting conditioned differential signals with minimal added noise or distortion. Use Value: −123 dB THD at 1 kHz preserves harmonic integrity for diagnostic image clarity; 1/f noise of 6 μV p-p supports DC-coupled physiological monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-accuracy SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD4007BCPZ-RL7 | 1 MSPS throughput, longer 790 ns acquisition phase, lower 8–9.3 mW power at 1 MSPS | Better suited for multiplexed multi-channel systems where throughput can be traded for lower power and relaxed driver bandwidth | Select when system sampling rate ≤1 MSPS and thermal budget is tighter; shares identical pinout and register map with AD4003BCPZ-RL7. |
| AD4020BRMZ-RL7 | 20-bit resolution, 1 MSPS, higher 102 dB SNR, larger 16-lead MSOP package | Targeted at metrology and calibration equipment requiring extended resolution beyond 18 bits | Choose when ENOB >16.7 bits is mandatory and board area allows larger footprint; not pin-compatible - requires layout revision. |
Compared with AD4003BCPZ-RL7, AD4007BCPZ-RL7 offers lower power and relaxed timing at reduced speed, while AD4020BRMZ-RL7 trades speed for higher resolution and SNR - making AD4003BCPZ-RL7 optimal for 2 MSPS, 18-bit, space-constrained industrial DAQ where latency and driver simplicity are critical.
Availability
AD4003BCPZ-RL7 is available at Aetrix Electronics and suitable for precision data acquisition systems, automated test equipment, and battery-powered instrumentation requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for AD4003BCPZ-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, with R&D and manufacturing facilities worldwide.
The AD4003BCPZ-RL7 belongs to the Easy Drive SAR ADC family designed specifically for high-channel-density, low-power, precision data acquisition in industrial, medical, and test equipment - emphasizing simplified signal chain design and robustness in real-world environments.
FAQ
What is the maximum achievable throughput for AD4003BCPZ-RL7, and what conditions are required?
The AD4003BCPZ-RL7 achieves 2 MSPS maximum throughput only when turbo mode is enabled and the SCK frequency is ≥75 MHz (≥100 MHz recommended for VIO ≥ 2.7 V). At 2 MSPS, the acquisition phase is 290 ns and conversion time is 290 ns typical. Lower speeds (1 MSPS, 500 kSPS) are supported without turbo mode and relax SCK requirements significantly.
Does AD4003BCPZ-RL7 require an external driver amplifier for sensor interfacing?
No - the AD4003BCPZ-RL7's Easy Drive architecture reduces input current to 0.5 μA/MSPS and extends acquisition time to ≥79% of the cycle, enabling direct connection to moderate-bandwidth sensors (e.g., RTDs, bridge transducers) without a dedicated driver. High-Z mode further lowers input current to 1 μA at 2 MSPS, improving compatibility with high-impedance sources.
How does the input overvoltage clamp in AD4003BCPZ-RL7 protect the system?
The AD4003BCPZ-RL7 input overvoltage clamp activates at 5.25 V (for VREF = 5 V), sinking up to 50 mA per input terminal. This prevents damage to the ADC core and minimizes disturbance on the VREF pin during transient events - eliminating the need for external Schottky diodes or series resistors in most industrial field-wiring scenarios.
Can AD4003BCPZ-RL7 operate with a 2.5 V reference voltage, and how does that affect performance?
Yes - AD4003BCPZ-RL7 supports VREF from 2.4 V to 5.1 V. With VREF = 2.5 V, SNR drops to 94.5 dB (vs. 100.5 dB at 5 V), THD is −119 dB, and reference current draw falls to 1.1 mA × (2.5/5) ≈ 0.55 mA. Full-scale range becomes ±2.5 V differentially, maintaining 18-bit resolution but reducing dynamic range by ~6 dB.
Is AD4003BCPZ-RL7 pin-compatible with other devices in the AD4000 family?
Yes - AD4003BCPZ-RL7 is pin-compatible with AD4000/AD4004/AD4008 family members in the same 10-lead LFCSP package. Register maps, timing, and interface protocols are aligned, enabling drop-in replacement where throughput and resolution requirements match - e.g., AD4004BCPZ-RL7 (18-bit, 1 MSPS) shares identical pinout and software interface.
AD4003BCPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 18
- Sampling Rate (Per Second):
- 2M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- DSP, MICROWIRE™, QSPI™, and SPI™
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 1.71V ~ 1.89V
- Voltage - Supply, Digital:
- 1.71V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-LFCSP-WD (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD4003BCPZ-RL7 FAQ
1.How can I place an order for AD4003BCPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD4003BCPZ-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 AD4003BCPZ-RL7 reliable?
The price and inventory of AD4003BCPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD4003BCPZ-RL7 is usually 5 days.
3.What payment methods are accepted for AD4003BCPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD4003BCPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD4003BCPZ-RL7?
AD4003BCPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD4003BCPZ-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 AD4003BCPZ-RL7?
For technical support, including AD4003BCPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD4003BCPZ-RL7 requirements.
6.How does Aetrix verify that AD4003BCPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All AD4003BCPZ-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 AD4003BCPZ-RL7 meets industry standards.
7.What is the process for return or replacement of AD4003BCPZ-RL7?
All AD4003BCPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD4003BCPZ-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 AD4003BCPZ-RL7 part is unused and in its original packaging.
Return procedure for AD4003BCPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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