MAXIM MAX11156ETC+

The MAX11156 18-bit, 500ksps, SAR ADC offers excellent AC and DC performance with true bipolar input range, small size, and internal reference. The MAX11156 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 MAX11156 integrates an optional internal reference and buffer, saving additional cost and space. This ADC achieves 94.6dB SNR and -101.4dB THD (typ). The MAX11156 guarantees 18-bit no-missing codes and ±2.8 LSB INL (typ). The MAX11156 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 in parallel for multichannel applications and provides a busy indicator option for simplified system synchronization and timing. The MAX11156 is offered in a 12-pin, 3mm x 3mm, TDFN package and is specified over the -40°C to +85°C temperature range.

• High DC/AC Accuracy Improves Measurementuality
• 18-Bit Resolution with No Missing Codes
• 500ksps Throughput Rate Without Pipeline Delay/ Latency
• 94.6dB SNR and -101.4dB THD at 10kHz
• 1.6 LSBRMS Transition Noise
• ±0.5 LSB DNL (typ) and ±2.8 LSB INL (typ)
• Highly Integrated ADC Saves Cost and Space
• 6ppm/°C (typ) 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
• 25.8mW Power Consumption at 500ksps
• 10μA in Shutdown Mode
• Multi-Industry Standard Serial Interface and Small Package Reduce Size
• SPI/QSPI/MICROWIRE/DSP-Compatible Serial Interface
• 3mm x 3mm Tiny 12-Pin TDFN Package

• Data Acquisition Systems
• Industrial Control Systems/Process Control
• Medical Instrumentation
• Automatic Test Equipment