San Jose, California, December 12, 2012—Maxim Integrated Products (NASDAQ: MXIM) announced the introduction of the MAX11166 and MAX11167, the industry's smallest bipolar 5V, 16-bit analog-to-digital converter (ADC) products.

Offered in a compact 9mm² package, the MAX11166 and MAX11167 are the only 12-pin 16-bit bipolar ADC products that integrate a buffer and internal reference, reducing costs and saving at least 88 percent board space compared to competitive products. By adopting Beyond-the-Rails™ technology, these highly integrated ADC products can support ±5V input signals using a single +5V rail. Consequently, this technology eliminates the need for negative power supplies and simplifies system design. Consuming 19.5mW at 500ksps and 1µA in shutdown mode, these ADC products are well-suited for applications requiring precise measurement such as data acquisition systems (DAS), industrial control systems/process control, medical equipment, and automated test equipment (ATE).

The MAX11166 and MAX11167 communicate through an SPI-compatible serial interface using 2.5V, 3V, 3.3V, and 5V logic, with sampling rates of 500ksps and 250ksps, respectively. In multi-channel simultaneous sampling applications, multiple ADCs can be daisy-chained using this serial interface. The serial interface also provides a "busy" indicator option to simplify system synchronization and timing. Maxim's proprietary input charge pump architecture enables direct sampling of high-impedance sources, eliminating the need for external analog buffers in some applications to drive the ADC input.

Product Features
• High integration: Industry's smallest package (9mm²), 16-bit ADC with integrated reference featuring buffer and Beyond-the-Rails technology enabling true bipolar ±5V measurements above and below ground
• Superior analog performance: 92.6dB SNR enables wide dynamic range applications, and industry-leading linearity (rated 0.5LSB INL, 0.2LSB DNL) enables precise measurements with approximately half the power of comparable competitors
• Convenient design: Precision voltage reference with reference buffer and high-impedance input conserves power and space

Industry Recognition
• Martin Mason, ADC Business Management Director at Maxim Integrated, stated: "Maxim is the only company to integrate an internal reference in a compact 16-bit bipolar ADC. By integrating the reference and providing bipolar input in a small package, engineers can save power, space, and cost compared to using external solutions."
• Susie Inouye, Research Director at Databeans, said: "Until now, engineers have had to use substantial external circuitry to measure true bipolar signals. The MAX11166 and MAX11167 product families excellently combine small size and wide input range, and by integrating an internal reference, they enable engineers to simplify their designs."

Supply, Temperature, and Pricing
• Robust 12-pin package (3mm x 3mm TDFN), 5V input, with 250ksps and 500ksps options available
• Operating temperature range of -40°C to +85°C

An extended version of these products with 18-bit resolution is planned for introduction in the first half of 2013.