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

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 ±VREF 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.

Applications

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

* 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 LSBRMS 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