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

The MAX11161 is a 16-bit, 250ksps, SAR ADC offering excellent AC and DC performance with true unipolar input range, internal reference, and small size. The MAX11161 measures a +5V (0 to 5V) input range and can operate with a single 5V supply. The MAX11161 integrates a low drift reference with internal buffer, saving the cost and space of an external reference.

This ADC achieves 92.2dB SNR at 10kHz and -106.5dB THD. The MAX11161 guarantees 16-bit no-missing codes and ±0.8 LSB INL (typ).

The MAX11161 communicates using an SPI-compatible serial interface at 2.3V, 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 MAX11161 is offered in a 10-pin, 3mm x 5mm, µMAX® package and is specified over the -40°C to +85°C temperature range.

Applications

* Automatic Test Equipment * Data Acquisition Systems * Industrial Process Control * Medical Instrumentation

* High DC/AC Accuracy Improves Measurement Quality

* 16-Bit Resolution with No Missing Codes

* 250ksps Throughput Rates Without Pipeline Delay/Latency

* 92.2dB SNR and -106.5dB THD at 10kHz

* 0.5 LSBRMS Transition Noise

* ±0.8 LSB INL (typ) and ±0.3 LSB DNL (typ)

* Highly Integrated ADC Saves Cost and Space

* ±7ppm/°C Internal Reference

* Internal Reference Buffer

* Flexible and Low Power Supply Saves Space and Cost

* +5V Analog and +2.3V to +5V Digital Supply

* 31mW Power Consumption at 250ksps

* 10µA in Shutdown Mode

* Multi-Industry Standard Serial Interface and Small Package Reduces Size

* SPI/QSPI™/MICROWIRE®/DSP-Compatible

* 3mm x 5mm, Tiny 10-Pin µMAX Package