MAX1278 Datasheet | Maxim Integrated

19-3364; Rev 0; 8/04 .. 1.8Msps, Single-Supply, Low-Power, True Differential, 12-Bit ADCs with Internal Reference General Description The MAX1276/MAX1278 are low-power, high-speed, serial-output, 12-bit, analog-to-digital converters (ADCs) that operate at up to 1.8Msps and have an internal reference. 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 MAX1276/MAX1278 operate from a single +4.75V to +5.25V supply voltage. The MAX1276/MAX1278 include a 4.096V internal reference. The MAX1276 has a unipolar analog input, while the MAX1278 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 (±1.25 LSB INL) make the MAX1276/MAX1278 ideal for industrial process control, motor control, and base-station applications. The MAX1276/MAX1278 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. - 1.8Msps Sampling Rate - Only 55m W (typ) Power Dissipation - Only 1µA (max) Shutdown Current - High-Speed, SPI-patible, 3-Wire Serial Interface - 70d B S/(N + D) at 525k Hz Input Frequency - Internal True-Differential Track/Hold (T/H) - Internal 4.096V Reference - No Pipeline Delays - Small 12-Pin TQFN Package Features MAX1276/MAX1278 Ordering Information PART MAX1276CTC-T MAX1276ETC-T MAX1278CTC-T MAX1278ETC-T TEMP RANGE 0°C to +70°C...