16-Bit, 250ksps, ±5V SAR ADC with Internal Reference in µMAX

 

器件号	Replacement	Explanation

说明

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The MAX11169 is a 16-bit, 250ksps, SAR ADC offering excellent AC and DC performance with true bipolar input range, internal reference, and small size. The MAX11169 measures a ±5V (10V_P-P) input range while operating from a single 5V supply. A patented charge-pump architecture allows direct sampling of high-impedance sources. The MAX11169 integrates a low drift reference with internal buffer, saving the cost and space of an external reference.

This ADC achieves 93dB SNR at 10kHz and -101dB THD. The MAX11169 guarantees 16-bit no-missing codes and ±0.5 LSB INL (typ).

The MAX11169 communicates using an SPI-compatible serial interface at 2.5V, 3V, 3.3V, or 5V logic. The serial interface can be used to daisy-chain multiple ADCs for multichannel applications and provides a busy indicator option for simplified system synchronization and timing.

The MAX11169 is offered in a 10-pin, 3mm x 5mm, µMAX® package and is specified over the -40°C to +85°C temperature range.

MAX11169: Functional Diagram 放大+

关键特性

• High DC/AC Accuracy Improves Measurement Quality
  • 16-Bit Resolution with No Missing Codes
  • 250ksps Throughput Rates without Pipeline Delay/Latency
  • 93dB SNR and -101dB THD at 10kHz
  • 0.5LSB_RMS Input-Referred Noise
  • ±0.2 LSB DNL (typ) and ±0.5 LSB INL (typ)
• Highly Integrated ADC Saves Cost and Space
  • ±7ppm/°C Internal Reference
  • Internal Reference Buffer
  • ±5V Bipolar Analog Input Range
• Wide Supply Range and Low Power Simplify Power-Supply Design
  • 5V Analog Supply
  • 2.3V to 5V Digital Supply
  • 33mW Power Consumption at 250ksps
  • 10µA in Shutdown Mode
• Multi-Industry Standard Serial Interface and Small Package Reduce Size
  • SPI/QSPI™/MICROWIRE^®/DSP-Compatible Serial Interface
  • 3mm x 5mm, Tiny 10-Pin µMAX Package

应用

• 自动测试设备
• 数据采集系统
• 工业过程控制
• 医疗仪表