TSM1285: A Single-Supply, 12-bit, 300ksps Serial-Output ADC with Inernal Reference

The TSM1285 – a single-supply, single-channel, 12-bit analog-to-digital converter (ADC) – is an alternate source for the MAX1285 and a higher-speed upgrade to the MAX1240 and MAX1240 ADCs. The TSM1285 combines a high-bandwidth track-and-hold (T/H), a high-speed serial digital interface, an internal +2.5V reference, and low conversion-mode power consumption. The TSM1285 operates from a single +2.7V to+3.6V supply and draws less than 2.5mA at 300ksps.
Connecting directly to any SPI™/QSPI™/ MICROWIRE™ microcontrollers and other interface-compatible computing devices, the TSM1285’s 3-wire serial interface is easy to use and doesn’t require separate, external logic. An external serial-interface clock controls the TSM1285’s conversion process and its output shift register operation.

In PCB-space-conscious, low-power remote-sensor and data-acquisition applications, the TSM1285 is an excellent choice for its low-power, ease-of-use, and small-package-footprint attributes.

The TSM1285BC is fully specified over the 0°C to +70°C temperature range. TSM1285BE is fully specified over the -40°C to +85°C temperature range. Both products are available in a 8-pin SOIC package.