AD4002BRUZ - 18-Bit SAR ADC, 2 MSPS | Analog Devices
MPN: AD4002BRUZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.5 | $8,500.00 |
Drop-in alternatives for AD4002BRUZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →AD4002BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 18-bit |
| Sampling Rate | 2 MSPS |
| Input Type | Single-ended |
| Interface | SPI |
| Supply Voltage | 1.8V to 5V |
| Reference Voltage | VREF (external) |
| Package | 16-TSSOP (0.173", 4.40mm Width) |
| Operating Temperature | -40°C to +125°C |
| Power Dissipation | [DATA_NEEDED: Power Dissipation] |
| INL | [DATA_NEEDED: INL] |
| SNR | [DATA_NEEDED: SNR] |
| THD | [DATA_NEEDED: THD] |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Number of Channels | 1 |
AD4002BRUZ Pin Configuration
| Pin 1 | VDD — Power supply |
| Pin 2 | GND — Ground |
| Pin 3 | VREF — Reference voltage input |
| Pin 4 | IN+ — Positive analog input |
| Pin 5 | IN- — Negative analog input |
| Pin 6 | SCK — Serial clock input |
| Pin 7 | SDI — Serial data input |
| Pin 8 | SDO — Serial data output |
| Pin 9 | CNV — Convert input |
| Pin 10 | BUSY — Busy output |
| Pin 11 | GND — Ground |
| Pin 12 | VDD — Power supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
AD4002BRUZ is suitable for 6 applications: High-Speed Data Acquisition, Industrial Automation, Medical Instrumentation, Precision Instrumentation, Battery-Powered Devices, Communication Systems.
High-Speed Data Acquisition
The AD4002BRUZ's 18-bit resolution and 2 MSPS sampling rate make it ideal for high-speed data acquisition systems. Its Easy Drive feature reduces input drive requirements, simplifying the analog front-end. The input overvoltage clamp protects against transients, ensuring reliable operation in industrial environments. With a wide supply range and low power, it suits portable and battery-powered data loggers.
Recommended
Industrial Automation
In industrial automation, the AD4002BRUZ provides precise analog-to-digital conversion for process control and monitoring. Its wide operating temperature range (-40°C to +125°C) ensures reliability in harsh environments. The SPI interface simplifies integration with industrial microcontrollers. The input overvoltage clamp eliminates the need for external protection diodes, reducing BOM cost and board space.
Recommended
Medical Instrumentation
The AD4002BRUZ is suitable for medical instrumentation such as patient monitoring and diagnostic equipment. Its high accuracy and low noise ensure precise measurements. The small 16-TSSOP package fits compact medical devices. The Easy Drive feature reduces the complexity of the driving amplifier, which is beneficial in battery-powered portable medical devices. The wide supply range allows operation from common battery voltages.
Recommended
Precision Instrumentation
For precision instrumentation like digital multimeters and spectrum analyzers, the AD4002BRUZ offers 18-bit resolution and high linearity. Its SPI interface allows easy connection to DSPs and FPGAs. The input span compression feature eliminates the need for a negative supply, simplifying the design. The overvoltage clamp protects sensitive inputs, enhancing robustness in test and measurement equipment.
Recommended
Battery-Powered Devices
The AD4002BRUZ's low power consumption and wide supply range (1.8V to 5V) make it ideal for battery-powered devices. Its small package and Easy Drive feature reduce overall system power and size. The input overvoltage clamp provides protection without external components, saving board space. This makes it suitable for portable medical devices, handheld instruments, and wireless sensors.
Recommended
Communication Systems
In communication systems, the AD4002BRUZ can be used for baseband signal processing and digital predistortion. Its high sampling rate and resolution enable accurate signal capture. The SPI interface supports high-speed data transfer. The Easy Drive feature simplifies the interface to RF front-ends. The wide supply range allows integration with various logic levels.
Recommended
Recommended Products Summary
Engineering reference data for AD4002BRUZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD4000BRUZ | AD4006BRUZ | AD4001BRUZ |
|---|---|---|---|---|
| Resolution | 18-bit | 16-bit | 18-bit | 16-bit |
| Sampling Rate | 2 MSPS | 1 MSPS | 500 kSPS | 2 MSPS |
| Supply Voltage | 1.8V to 5V | 1.8V to 5V | 1.8V to 5V | 1.8V to 5V |
| Package | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP |
| Interface | SPI | SPI | SPI | SPI |
| Input Type | Single-ended | Single-ended | Single-ended | Single-ended |
| Operating Temperature | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
Key Differentiators
- 18-bit resolution at 2 MSPS (vs AD4000BRUZ)
- Easy Drive technology (vs AD4006BRUZ)
- Input overvoltage clamp (vs AD4001BRUZ)
Design Notes
Decouple the VDD pin with a 10uF ceramic capacitor and a 0.1uF capacitor placed as close to the pin as possible. The VREF pin should also be decoupled with a 10uF capacitor to ensure a stable reference voltage. Proper decoupling minimizes noise and ensures accurate conversions.
Use a solid ground plane under the ADC to minimize noise. Keep analog and digital grounds separate and connect them at a single point. Route the SPI lines away from analog input traces to avoid crosstalk. Follow the layout guidelines in the AD4002 datasheet for optimal performance.
Ensure the input signal is within the specified common-mode range. The input overvoltage clamp protects against overvoltage, but do not rely on it for continuous operation. Also, avoid driving the input with a high-impedance source without a buffer, as this can cause settling errors. Use a low-impedance driver or an op-amp buffer.
Compliance Information
RoHS compliant per DigiKey listing. Other compliance data not provided.
