MAX1279 Datasheet | Maxim Integrated

19-3365; Rev 0; 8/04 .. 1.5Msps, Single-Supply, Low-Power, True Differential, 12-Bit ADCs with Internal Reference General Description The MAX1277/MAX1279 are low-power, high-speed, serial-output, 12-bit, analog-to-digital converters (ADCs) with an internal reference that operates at up to 1.5Msps. These devices feature true-differential inputs, offering better noise immunity, distortion improvements, and a wider dynamic range over single-ended inputs. A standard SPI™/QSPI™/MICROWIRE™ interface provides the clock necessary for conversion. These devices easily interface with standard digital signal processor (DSP) synchronous serial interfaces. The MAX1277/MAX1279 operate from a single +2.7V to +3.6V supply voltage. The MAX1277/MAX1279 include a 2.048V internal reference. The MAX1277 has a unipolar analog input, while the MAX1279 has a bipolar analog input. These devices feature a partial power-down mode and a full power-down mode for use between conversions, which lower the supply current to 2m A (typ) and 1µA (max), respectively. Also featured is a separate power-supply input (VL), which allows direct interfacing to +1.8V to VDD digital logic. The fast conversion speed, low-power dissipation, excellent AC performance, and DC accuracy (±1 LSB INL) make the MAX1277/MAX1279 ideal for industrial process control, motor control, and base-station applications. The MAX1277/MAX1279 e in a 12-pin TQFN package, and are available in the mercial (0°C to +70°C) and extended (-40°C to +85°C) temperature ranges. - 1.5Msps Sampling Rate - Only 22m W (typ) Power Dissipation - Only 1µA (max) Shutdown Current - High-Speed, SPI-patible, 3-Wire Serial Interface - 68.5d B S/(N + D) at 525k Hz Input Frequency - Internal True-Differential Track/Hold (T/H) - Internal 2.048V Reference - No Pipeline Delays - Small 12-Pin TQFN Package Features MAX1277/MAX1279 Ordering Information PART MAX1277ACTC-T MAX1277BCTC-T MAX1277AETC-T MAX1277BETC-T MAX1279ACTC-T MAX1279BCTC-T...