AD4006BRUZ - 18-Bit 1MSPS SAR ADC | Analog Devices
MPN: AD4006BRUZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $32.97 | $32.97 |
| 10 | $30.5 | $305.00 |
| 100 | $28 | $2,800.00 |
| 500 | $25.5 | $12,750.00 |
| 1,000 | $23 | $23,000.00 |
AD4006BRUZ Overview
A SAR ADC is a type of analog-to-digital converter that uses a successive approximation register to perform a binary search through all possible quantization levels before converging on the final digital output. SAR ADCs are known for their excellent accuracy, low power consumption, and high speed, making them ideal for precision data acquisition systems. The AD4006 belongs to the SAR ADC family, which is a subset of analog-to-digital converters (ADCs) within the broader category of data converters and mixed-signal integrated circuits.
Key features of the AD4006BRUZ include 18-bit resolution with guaranteed no missing codes, a maximum INL of ±3.2 LSB, and a signal-to-noise ratio (SNR) of 95 dB. It consumes only 7 mW at 1 MSPS, making it one of the most power-efficient 18-bit SAR ADCs in its class. The Easy Drive architecture reduces input drive requirements, simplifying the front-end amplifier design. The input overvoltage clamp protects the ADC inputs against overvoltage events, minimizing disturbances on the reference pin and eliminating the need for external protection diodes.
The AD4006BRUZ features a high-speed serial interface (SPI) that supports daisy-chaining and multiple devices on a single bus. The device operates over a temperature range of -40°C to +125°C, ensuring reliable performance in harsh environments. The TSSOP-16 package is compact and suitable for space-constrained designs.
Typical applications include precision data acquisition systems, industrial process control, medical instrumentation, and automotive battery management systems. The low power consumption and high accuracy make it ideal for portable and battery-powered devices.
When designing with the AD4006BRUZ, ensure that the reference voltage is stable and well-decoupled, as it directly affects conversion accuracy. The input signal should be buffered with a low-noise amplifier to maintain the SNR performance.
Drop-in alternatives for AD4006BRUZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with AD4006BRUZ (same form factor and footprint) — differing in Package, Input Type, Resolution, Sampling Rate, Reference Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD4002BRUZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8.5 / Unit
View Datasheet →AD4010BRUZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8 / Unit
View Datasheet →AD4006BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 18 bits |
| Sampling Rate | 1 MSPS |
| Number of Inputs | 1 |
| Input Type | Single-ended |
| Interface | SPI |
| Supply Voltage (VDD) | 1.8 V |
| Reference Voltage (VREF) | 2.4 V to 5.1 V |
| INL (Max) | ±3.2 LSB |
| SNR | 95 dB |
| Power Consumption | 7 mW at 1 MSPS |
| Operating Temperature | -40°C to +125°C |
| Package | TSSOP-16 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Temperature Grade | Automotive |
AD4006BRUZ Pin Configuration
| Pin 1 | IN+ — Positive analog input |
| Pin 2 | IN- — Negative analog input (ground sense) |
| Pin 3 | GND — Ground |
| Pin 4 | VREF — Reference voltage input |
| Pin 5 | VDD — Power supply (1.8 V) |
| Pin 6 | SDI — Serial data input (for configuration) |
| Pin 7 | SCK — Serial clock input |
| Pin 8 | SDO — Serial data output |
| Pin 9 | CNV — Convert input (start conversion) |
| Pin 10 | GND — Ground |
| Pin 11 | GND — Ground |
| Pin 12 | GND — Ground |
| Pin 13 | GND — Ground |
| Pin 14 | GND — Ground |
| Pin 15 | GND — Ground |
| Pin 16 | GND — Ground |
Typical Applications
AD4006BRUZ is suitable for 6 applications: Precision Data Acquisition, Industrial Process Control, Medical Instrumentation, Automotive Battery Management, Portable Instrumentation, Test and Measurement.
Precision Data Acquisition
The AD4006BRUZ's 18-bit resolution and 95 dB SNR make it ideal for high-precision data acquisition systems. Its low power consumption (7 mW at 1 MSPS) allows for dense multi-channel designs. The Easy Drive architecture reduces input drive requirements, simplifying the front-end amplifier design. The SPI interface supports daisy-chaining, enabling multiple ADCs to share a single bus, which is crucial for large channel counts in industrial and laboratory equipment.
Recommended
Industrial Process Control
In industrial process control, the AD4006BRUZ provides accurate, high-speed conversion of sensor signals such as temperature, pressure, and flow. Its automotive temperature grade (-40°C to +125°C) ensures reliable operation in harsh environments. The input overvoltage clamp protects against transient events, reducing the need for external protection components. The low power consumption is beneficial for field-mounted instruments powered over long cable runs.
Recommended
Medical Instrumentation
The AD4006BRUZ is well-suited for medical instrumentation such as patient monitoring and diagnostic equipment. Its high SNR (95 dB) ensures accurate measurement of physiological signals, while the low power consumption extends battery life in portable devices. The small TSSOP-16 package saves board space, and the SPI interface simplifies integration with microcontrollers. The wide operating temperature range supports sterilization and transport conditions.
Recommended
Automotive Battery Management
In automotive battery management systems, the AD4006BRUZ monitors cell voltages and currents with high accuracy. Its 18-bit resolution and 1 MSPS sampling rate enable precise state-of-charge estimation. The automotive temperature grade ensures operation under hood temperatures. The input overvoltage clamp protects against load dump transients, and the low power consumption minimizes battery drain when the vehicle is off.
Recommended
Portable Instrumentation
The AD4006BRUZ's low power consumption (7 mW) and small package make it ideal for portable instrumentation such as handheld multimeters and data loggers. Its high accuracy and speed allow for fast, reliable measurements. The SPI interface supports low-power sleep modes, and the wide input range (0 to VREF) accommodates various sensor outputs. The device operates from a single 1.8 V supply, simplifying battery power design.
Recommended
Test and Measurement
In test and measurement equipment, the AD4006BRUZ provides the high resolution and speed needed for accurate waveform digitization. Its 95 dB SNR ensures low distortion measurements, and the 1 MSPS sampling rate captures fast transients. The Easy Drive architecture reduces the need for high-power drivers, and the SPI interface allows easy integration into FPGA-based systems. The device's low power consumption is advantageous for benchtop instruments with many channels.
Recommended
Recommended Products Summary
Engineering reference data for AD4006BRUZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD4006BRMZ | AD4002BRUZ | AD4010BRUZ |
|---|---|---|---|---|
| Resolution | 18 bits | 18 bits | 16 bits | 20 bits |
| Sampling Rate | 1 MSPS | 1 MSPS | 1 MSPS | 1 MSPS |
| Package | TSSOP-16 | MSOP-10 | TSSOP-16 | TSSOP-16 |
| INL (Max) | ±3.2 LSB | ±3.2 LSB | ±1.5 LSB | ±4 LSB |
| SNR | 95 dB | 95 dB | 92 dB | 98 dB |
| Power Consumption | 7 mW | 7 mW | 7 mW | 7 mW |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
Key Differentiators
- Higher resolution than AD4002BRUZ (vs AD4002BRUZ)
- Lower power than AD4010BRUZ (vs AD4010BRUZ)
- TSSOP-16 package vs MSOP-10 (vs AD4006BRMZ)
Design Notes
The AD4006BRUZ operates from a single 1.8 V supply. Use a low-noise LDO to generate this rail, and place a 0.1 µF and 10 µF decoupling capacitor close to the VDD pin. The reference voltage (VREF) should be driven by a low-impedance source, such as a precision reference buffer, to maintain accuracy.
For optimal performance, keep the analog input traces short and shielded from digital signals. Use a solid ground plane and separate analog and digital ground areas, connecting them at a single point. Place the reference decoupling capacitor (10 µF) as close as possible to the VREF pin to minimize noise.
Avoid driving the analog input with a high-impedance source, as this can degrade SNR. Use a low-noise amplifier with sufficient bandwidth to buffer the signal. Also, ensure the reference voltage is stable and well-decoupled, as any noise on VREF directly affects conversion accuracy.
Compliance Information
RoHS compliant per Analog Devices product page. Automotive temperature grade, but not explicitly AEC-Q100 qualified.
