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MAX11169：16-Bit, 250ksps, ±5V SAR ADC with Internal Reference in µMAX

Small, True Bipolar Input, 16-Bit SAR ADC with Internal Reference

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 (10VP-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.

Key Features 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 0.5LSBRMS 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

MAX11169: Functional Diagram Applications/Uses Automatic Test Equipment Data Acquisition Systems Industrial Process Control Medical Instrumentation

DataSheet

Parametrics

Design kits & evaluation modules

• MAX11150EVKIT
• MAX11152EVKIT
• MAX11158EVKIT
• MAX11160EVKIT
• MAX11162EVKIT
• MAX11168EVKIT

Quality and Environmental Data

• MAX11169.pdf

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