AD4004BRUZ - 16-Bit 1 MSPS SAR ADC | Analog Devices
MPN: AD4004BRUZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $10.42 | $10.42 |
| 10 | $9.38 | $93.80 |
| 100 | $8.34 | $834.00 |
| 500 | $7.29 | $3,645.00 |
| 1,000 | $6.25 | $6,250.00 |
AD4004BRUZ Overview
An SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input into a digital output. It is known for its high speed, low power, and excellent accuracy, making it ideal for applications such as industrial process control, medical instrumentation, and portable battery-powered devices. The AD4004BRUZ belongs to the PulSAR family of ADCs, which are recognized for their high performance and ease of use.
Key features of the AD4004BRUZ include a 16-bit resolution, a maximum sampling rate of 1 MSPS, and a pseudo-differential input that rejects common-mode noise. It also offers a high signal-to-noise ratio (SNR) and low power consumption, making it suitable for power-sensitive designs. The device includes an internal reference buffer and supports both external and internal reference options.
The AD4004BRUZ uses a charge redistribution architecture with a capacitive DAC, ensuring high linearity and low noise. It provides a serial interface that is compatible with SPI, QSPI, and MICROWIRE protocols, allowing easy integration with microcontrollers and DSPs. The device also features a busy indicator and a conversion result readback function.
Typical applications for the AD4004BRUZ include data acquisition systems, industrial automation, medical imaging, and scientific instrumentation. Its high accuracy and speed make it suitable for applications such as motor control, power monitoring, and vibration analysis. The device is also used in portable devices where low power consumption is critical.
When designing with the AD4004BRUZ, it is important to provide a clean analog supply and a stable reference voltage. Proper decoupling and layout techniques should be used to minimize noise and ensure optimal performance. The device operates over a temperature range of -40°C to +125°C, making it suitable for harsh environments.
Drop-in alternatives for AD4004BRUZ — 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 AD4004BRUZ (same form factor and footprint) — differing in Interface, Input Type, Package, Resolution, Sampling Rate.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD4000BRUZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$8.1 / Unit
View Datasheet →AD4001BRUZ
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.6818 / Unit
View Datasheet →AD4004BRUZ Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Sampling Rate | 1 MSPS |
| Input Type | Pseudo-Differential |
| Number of Inputs | 2 |
| Architecture | SAR |
| Supply Voltage | 5 V |
| Interface | SPI, QSPI, MICROWIRE |
| Package | 16-Lead TSSOP |
| Operating Temperature Range | -40°C to +125°C |
| Reference Voltage | External or Internal |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
AD4004BRUZ Pin Configuration
| Pin 1 | REF — Reference voltage input |
| Pin 2 | IN+ — Positive analog input |
| Pin 3 | IN- — Negative analog input |
| Pin 4 | GND — Ground |
| Pin 5 | VDD — Power supply |
| Pin 6 | SCK — Serial clock |
| Pin 7 | SDI — Serial data input |
| Pin 8 | SDO — Serial data output |
| Pin 9 | CNV — Convert input |
| Pin 10 | BUSY — Busy indicator |
| Pin 11 | VIO — I/O supply voltage |
| Pin 12 | PD — Power-down input |
| Pin 13 | NC — No connect |
| Pin 14 | NC — No connect |
| Pin 15 | NC — No connect |
| Pin 16 | NC — No connect |
Typical Applications
AD4004BRUZ is suitable for 6 applications: Industrial Process Control, Medical Instrumentation, Data Acquisition Systems, Motor Control, Power Monitoring, Scientific Instrumentation.
Industrial Process Control
The AD4004BRUZ is ideal for industrial process control due to its 16-bit resolution and 1 MSPS sampling rate. It can accurately digitize sensor signals such as temperature, pressure, and flow, enabling precise control loops. Its pseudo-differential input rejects common-mode noise, ensuring reliable operation in noisy industrial environments. The wide operating temperature range of -40°C to +125°C makes it suitable for harsh conditions. The SPI interface simplifies integration with industrial microcontrollers and PLCs.
Recommended
Medical Instrumentation
In medical instrumentation, the AD4004BRUZ provides high accuracy and low noise, essential for applications like patient monitoring and diagnostic equipment. Its 16-bit resolution ensures precise measurement of physiological signals such as ECG and EEG. The low power consumption extends battery life in portable devices. The small TSSOP package allows compact designs, and the SPI interface enables easy data transfer to processing units. The device's reliability and wide temperature range make it suitable for medical environments.
Recommended
Data Acquisition Systems
The AD4004BRUZ is a core component in data acquisition systems, offering high-speed and high-resolution conversion. It can sample multiple channels with an external multiplexer, enabling efficient data logging. Its pseudo-differential input reduces ground noise, improving measurement accuracy. The device's low power dissipation is beneficial for portable data loggers. The SPI interface allows direct connection to DSPs and FPGAs, facilitating real-time signal processing. The TSSOP package is suitable for dense PCB layouts.
Recommended
Motor Control
The AD4004BRUZ is used in motor control systems to digitize current and voltage feedback signals. Its 1 MSPS sampling rate allows real-time monitoring of motor phases, enabling precise control algorithms. The high resolution ensures accurate current sensing, improving efficiency and torque control. The device's robust design and wide temperature range make it suitable for industrial motor drives. The SPI interface simplifies communication with motor control MCUs.
Recommended
Power Monitoring
The AD4004BRUZ is ideal for power monitoring applications, such as smart meters and power quality analyzers. It can accurately digitize voltage and current waveforms, enabling calculation of power, energy, and harmonics. Its high sampling rate and resolution ensure accurate measurement of fast transients. The pseudo-differential input rejects common-mode noise, improving measurement accuracy in high-voltage environments. The device's low power consumption is beneficial for always-on monitoring systems.
Recommended
Scientific Instrumentation
The AD4004BRUZ is used in scientific instrumentation, such as spectrometers and particle detectors, where high precision is critical. Its 16-bit resolution and low noise enable accurate measurement of weak signals. The high sampling rate allows capture of fast events. The device's wide temperature range and reliability make it suitable for laboratory and field use. The SPI interface facilitates integration with data acquisition systems.
Recommended
Recommended Products Summary
Engineering reference data for AD4004BRUZ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD4000BRUZ | AD4001BRUZ | AD4004BRMZ |
|---|---|---|---|---|
| Package | 16-Lead TSSOP | 16-Lead TSSOP | 16-Lead TSSOP | 10-Lead MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 bits | 16 bits | 16 bits | 16 bits |
| Sampling Rate | 1 MSPS | 500 kSPS | 1 MSPS | 1 MSPS |
| Input Type | Pseudo-Differential | Pseudo-Differential | Pseudo-Differential | Pseudo-Differential |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Interface | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
Key Differentiators
- Higher sampling rate than AD4000BRUZ (vs AD4000BRUZ)
- Same package as AD4001BRUZ (vs AD4001BRUZ)
- TSSOP package vs MSOP (vs AD4004BRMZ)
Design Notes
Provide a clean 5V analog supply and a separate digital supply (VIO) to minimize noise coupling. Use low-dropout regulators (LDOs) with low output noise, such as the ADP151, to power the ADC. Decouple each supply pin with a 10uF and 0.1uF capacitor placed close to the device.
Use a solid ground plane and separate analog and digital ground areas, connecting them at a single point. Place the ADC close to the signal source to minimize trace length. Route analog inputs away from digital traces to reduce crosstalk. Use a ground guard ring around the analog input pins.
Ensure the reference voltage is stable and low-noise. Use a precision reference such as the ADR4520. Avoid floating unused pins; connect them to ground or VDD as recommended in the datasheet. Do not exceed the absolute maximum ratings for input voltage and supply voltage.
Compliance Information
RoHS compliant per Analog Devices product page. Other compliance data not specified in provided data.