AD7457

Low Power, Pseudo Differential, 100 kSPS 12-Bit ADC in an 8-Lead SOT-23 AD7457 FEATURES Specified for VDD of 2.7 V to 5.25 V Low power: 0.9 mW max at 100 kSPS with VDD = 3 V 3 mW max at 100 kSPS with VDD = 5 V Pseudo differential analog input Wide input bandwidth: 70 dB SINAD at 30 kHz input frequency Flexible power/serial clock speed management No pipeline delays High speed serial interface—SPI®-/QSPI™-/ MICROWIRE™-/DSP-compatible Automatic power-down mode 8-lead SOT-23 package APPLICATIONS Transducer interface Battery-powered systems Data acquisition systems Portable instrumentation GENERAL DESCRIPTION The AD7457 is a 12-bit, low power, successive approximation (SAR) analog-to-digital converter that features a pseudo differential analog input. This part operates from a single 2.7 V to 5.25 V power supply and features throughput rates of up to 100 kSPS. The part contains a low noise, wide bandwidth, differential track-and-hold (T/H) amplifier that can handle input frequencies ...