16-Bit, 1Msps, Low-Power, Fully Differential SAR ADC

 

Part Number	Replacement	Explanation

Description

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The MAX11900 is a 16-bit, 1Msps, single-channel, fully differential SAR ADC with internal reference buffers. The MAX11900 provides excellent static and dynamic performance with best-in-class power consumption that directly scales with throughput. The device has a unipolar differential ±V_REF input range. Supplies include a 3.3V supply for the reference buffers, a 1.8V analog supply, a 1.8V digital supply, and a 1.5V to 3.6V digital interface supply.

This ADC achieves 95.6dB SNR and -115dB THD, guarantees 16-bit resolution with no-missing codes and 0.5 LSB INL (max).

The MAX11900 communicates data using a SPI-compatible serial interface. The MAX11900 is offered in a 20-pin, 4mm x 4mm, TQFN package and is specified over the -40°C to +85°C operating temperature range.

MAX11900: Functional Diagram Enlarge+

Key Features

• High DC/AC Accuracy Improves Measurement Quality
  • 16-Bit Resolution with No Missing Codes
  • 1Msps Throughput Rates Without Pipeline Delay/Latency
  • 95.6dB SNR and -115dB THD at 10kHz
  • 0.4 LSB_RMS Transition Noise
  • ±0.25 LSB DNL (max) and ±0.5 LSB INL (max)
• Highly Integrated ADC Saves Cost and Space
  • Internal Reference Buffer
• Wide Supply Range and Low Power Simplify Power-Supply Design
  • 1.8V Analog Supply
  • 1.5V to 3.6V Digital Supply
  • 6.7mW Power Consumption at 1Msps
  • 6.7µW Power Consumption at 1ksps
  • 1µA in Shutdown Mode
• Multi-Industry Standard Serial Interface and Small Package Reduces Size
  • SPI/QSPI™/MICROWIRE^®/DSP-Compatible Serial Interface
  • 4mm x 4mm 20-Pin TQFN Package

Applications/Uses

• Automatic Test Equipment
• Battery-Powered Equipment
• Data Acquisition Systems
• Medical Instrumentation
• Process Control and Industrial Automation
• Telecommunications
• Test and Measurement