MAX1394 Datasheet | Maxim Integrated

.. 19-3720; Rev 0; 11/06 1.5V to 3.6V, 416ksps, 1-Channel True-Differential/ 2-Channel Single-Ended, 8-Bit, SAR ADCs General Description The MAX1391/MAX1394 micropower, serial-output, 8-bit, analog-to-digital converters (ADCs) operate with a single power supply from +1.5V to +3.6V. These ADCs feature automatic shutdown, fast wake-up, and a highspeed 3-wire interface. Power consumption is only 0.743m W (VDD = +1.5V) at the maximum conversion rate of 416ksps. Auto Shutdown™ between conversions reduces power consumption at slower throughput rates. The MAX1391/MAX1394 require an external reference V REF that has a wide range from 0.6V to V DD . The MAX1391 provides one true-differential analog input that accepts signals ranging from 0 to VREF (unipolar mode) or ±VREF/2 (bipolar mode). The MAX1394 provides two single-ended inputs that accept signals ranging from 0 to V REF . Analog conversion results are available through a 5MHz 3-wire SPI™-/QSPI™-/ MICROWIRE™-/digital signal processor (DSP)-patible serial interface. Excellent dynamic performance, low voltage, low power, ease of use, and small package sizes make these converters ideal for portable battery-powered data-acquisition applications, as well as other applications that demand low-power consumption and minimal space. The MAX1391/MAX1394 are available in a space-saving (3mm x 3mm), 10-pin TDFN package. The parts operate over the extended (-40°C to +85°C) and military (-55°C to +125°C) temperature ranges. Features o 416ksps, 8-Bit Successive-Approximation Register (SAR) ADCs o Single True-Differential Analog Input Channel with Unipolar-/Bipolar-Selected Input (MAX1391) o Dual Single-Ended Input Channel with Channel Selected Input (MAX1394) o ±0.2 LSB INL, ±0.2 LSB DNL, No Missing Codes o ±0.25 LSB Total Unadjusted Error (TUE) o 49d B SINAD at 100k Hz Input Frequency o Single-Supply Voltage (+1.5V to +3.6V) o 0.97m W at 416ksps, 1.8V o 0.230m W at 100ksps, 1.8V o 3.1µW at 1ksps, 1.8V o < 1µA...