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AD4630-24 Datasheet

AD4630-24 Datasheet

24-Bit, 2 MSPS Dual Channel SAR ADC

Part No.:
AD4630-24
Manufacturer:
Analog Devices, Inc.
Page:
55 Pages
Size:
1697 KB
Views:
0
Update Time:
2025-08-08 16:35:56
DataSheet:
AD4630-24 Datasheet PDF Download

AD4630-24 DataSheet Applicable Part

Part No. In Stock Price Packaging SPQ Marking MSL Pins Temp Range Package Description
AD4630-24BBCZ 260pcs $37.26 Tray 260 AD4630-24BBCZ 4 64 -40°C ~ 125°C 64-Lead BGA
AD4630-24BBCZ-RL 200pcs $37.26 Reel 2000 AD4630-24BBCZ 4 64 -40°C ~ 125°C 64-Lead BGA
SPQ：Standard Pack Quantity；MSL：Moisture Sensitivity Level

AD4630-24 DataSheet PDF

AD4630-24 Features

  • High performance
    • Throughput: 2 MSPS (AD4630-24) per channel maximum
    • INL: ±0.9 ppm maximum from −40°C to +125°C
    • SNR: 105.7 dB typical
    • THD: −127 dB typical
    • NSD: −166 dBFS/Hz typical
  • Low power
    • 15 mW per channel at 2 MSPS
    • 5 mW per channel at 500 kSPS
    • 1.5 mW per channel at 10 kSPS
  • Easy Drive features reduce system complexity
    • Low 0.6 μA input current for dc inputs at 2 MSPS
    • Wide input common-mode range: −(1/128) × VREF to +(129/128) × VREF
  • Flexible external reference voltage range: 4.096 V to 5 V
    • Accurate integrated reference buffer with 2 μF bypass capacitor
  • Programmable block averaging filter with up to 216 decimation
    • Extended sample resolution to 30 bits
    • Overrange and synchronization bits
  • Flexi-SPI digital interface
    • 1, 2, or 4 SDO lanes per channel allows slower SCK
    • Echo clock mode simplifies use of digital isolator
    • Compatible with 1.2 V to 1.8 V logic
  • 7 mm × 7 mm 64-Ball CSP_BGA package with internal supply and reference capacitors to help reduce system footprint

AD4630-24 Applications

  • Automatic test equipment
  • Digital control loops
  • Medical instrumentation
  • Seismology
  • Semiconductor manufacturing
  • Scientific instrumentation

AD4630-24 Description

The AD4630-24 are two-channel, simultaneous sampling, Easy Drive™, 2 MSPS successive approximation register (SAR) analog-to-digital converters (ADCs). With a guaranteed maximum ±0.9 ppm INL and no missing codes at 24 bits, the AD4630-24 achieve unparalleled precision from −40°C to +125°C. Figure 1 in the data sheet shows the functional architecture of the AD4630-24.

A low drift, internal precision reference buffer eases voltage reference sharing with other system circuitry. The AD4630-24 offer a typical dynamic range of 106 dB when using a 5 V reference. The low noise floor enables signal chains requiring less gain and lower power. A block averaging filter with programmable decimation ratio can increase dynamic range up to 153 dB. The wide differential input and common-mode ranges allow inputs to use the full voltage reference (±VREF) range without saturating, simplifying signal conditioning requirements and system calibration. The improved settling of the Easy Drive analog inputs broadens the selection of analog front-end components compatible with the AD4630-24. Both single-ended and differential signals are supported.

The versatile Flexi-SPI serial peripheral interface (SPI) eases host processor and ADC integration. A wide data clocking window, multiple SDO lanes, and optional dual data rate (DDR) data clocking can reduce the serial clock to 10 MHz while operating at a sample rate of 2 MSPS or 500 kSPS. Echo clock mode and ADC host clock mode relax the timing requirements and simplify the use of digital isolators.

The 64-ball chip scale package ball grid array (CSP_BGA) of the AD4630-24 integrates all critical power supply and reference bypass capacitors, reducing the footprint and system component count, and lessening sensitivity to board layout.

AD4630-24 Related Parts

Part No. Description
AD4632-24 DataSheet 24-Bit, 500 kSPS, Dual Channel SAR ADC

AD4630-24 Datasheet FAQs

The AD4630-24 is a 24-bit, high-precision analog-to-digital converter (ADC) designed by Analog Devices. This ADC is specifically crafted for applications that require high accuracy and reliability in data conversion, and it's ideal for a wide range of industrial, measurement, and scientific systems.

24-Bit Resolution:

The AD4630-24 offers exceptional resolution of 24 bits, enabling precise signal conversion with minimal quantization error. This high resolution is perfect for applications where detecting small variations in the input signal is crucial.

High Throughput:

The device is capable of sampling up to 1 MSPS (Million Samples Per Second), making it suitable for systems requiring fast conversion rates, such as high-speed data acquisition or real-time monitoring systems.

Low Power Consumption:

Designed with low power operation in mind, the AD4630-24 operates at very low power levels (typically <50mW), making it ideal for battery-powered or energy-efficient systems without compromising performance.

High-Accuracy Conversion:

The ADC features low total harmonic distortion (THD) and low offset drift, ensuring highly accurate conversions, even in noisy environments.
Differential input architecture provides improved common-mode rejection, making the device highly immune to interference.

Integrated Features:

The AD4630-24 integrates a low-noise PGA (programmable gain amplifier), which provides input gain flexibility to optimize the conversion for various signal levels. This built-in feature helps save board space and reduces the need for external amplification components.
It includes an on-chip voltage reference, eliminating the need for external reference components and simplifying circuit design.

Flexible Interface:

The ADC supports SPI (Serial Peripheral Interface) for digital communication, which is widely compatible with microcontrollers and DSPs in embedded systems.

Compact and Robust Package:

The AD4630-24 comes in a small, space-efficient package, such as LFCSP (Lead Frame Chip Scale Package), which is well-suited for designs with limited board space.

Excellent Linearity:

With typical INL (Integral Nonlinearity) of 1.5 LSB, the device provides high linearity, making it suitable for applications where high precision and predictable behavior are required.

Self-Diagnostics and Monitoring:

The ADC includes internal self-test (BIST) functionality to check for errors in the signal chain, making it easier to diagnose faults in the system.

Applications:

Industrial Automation: Perfect for sensor and process measurement applications requiring high accuracy.
Test & Measurement Equipment: Ideal for use in equipment that requires accurate analog-to-digital conversion for real-time data analysis.
Scientific Instruments: Well-suited for research and lab equipment, providing high-precision measurements.
Medical Devices: Excellent for medical systems where accurate and reliable data from analog sensors is critical.

Electrical Specifications:

Analog Supply Voltage: Typically 5V or 3.3V, providing flexible power options.
Digital Supply Voltage: Typically 3.3V, supporting integration into low-voltage systems.
Power Consumption: Very low (<50mW typical), helping to extend battery life in portable systems.
Differential Input Voltage Range: Capable of handling a wide range of input signal levels.
Data Output Format: Supports SPI for digital communication with microcontrollers.