MAX1084

19-1686; Rev 1; 12/10 MAX1084/MAX1085 400ksps/300ksps, Single-Supply, Low-Power, Serial 10-Bit ADCs with Internal Reference General Description The MAX1084/MAX1085 10-bit analog-to-digital converters (ADCs) combine a high-bandwidth track/hold, a serial interface with high conversion speed, an internal +2.5V reference, and low power consumption. The MAX1084 operates from a single +4.5V to +5.5V supply; the MAX1085 operates from a single +2.7V to +3.6V supply. The 3-wire serial interface connects directly to SPI™/QSPI™/MICROWIRE™ devices without external logic. The devices use an external serial-interface clock to perform successive-approximation analog-to-digital conversions. Low power combined with ease of use and small package size make these converters ideal for remote-sensor and data-acquisition applications, or for other circuits with demanding power consumption and space requirements. The MAX1084/MAX1085 are available in 8-pin SO packages. These devices are pin-compatible, higher-speed versions of the MAX1242/MAX1243; for more information, refer to the respective data sheets. Applications Portable Data Logging Data Acquisition Medical Instruments Battery-Powered Instruments Pen Digitizers Process Control Pin Configuration Features ♦ Single-Supply Operation +4.5V to +5.5V (MAX1084) +2.7V to +3.6V (MAX1085) ♦ 10-Bit Resolution ♦ 400ksps Sampling Rate (MAX1084) ♦ Internal Track/Hold ♦ Internal +2.5V Reference ♦ Low Power: 2.5mA (400ksps) ♦ SPI/QSPI/MICROWIRE 3-Wire Seri...