LTC2408IG#PBF

LTC2408 is a 8-channel 2.7V to 5.5V micropower 24bit A/D converters with an integrated oscillator, 4ppm INL no missing codes and 0.3ppm RMS noise. This uses delta-sigma technology and provide single cycle digital filter settling time (no latency delay) for multiplexed applications. The first conversion after the channel is changed is always valid. The internal oscillator requires no external frequency setting components. The converters accept any external reference voltage from 0.1V to VCC. With their extended input conversion range of -12.5% VREF to 112.5% VREF the LTC2408 smoothly resolve the offset and overrange problems of preceding sensors or signal conditioning circuits. This communicate through a flexible 4-wire digital interface which is compatible with SPI and MICROWIRETM protocols. Application includes weight scales, direct temperature measurement, gas analyzers, strain gauge transducers, instrumentation, data acquisition, industrial process control, 6-Digit DVMs.

• Single conversion digital filter settling time simplifies multiplexing
• 0.5ppm offset, 0.3ppm noise
• Internal oscillator no external components required
• Reference input voltage range from 0.1V to VCC
• Live zero extended input range accommodates 12.5% overrange and under range
• Single supply 2.7V to 5.5V operation range
• Low supply current (200µA) and auto shutdown
• Resolution is 24bits (typ, TA = 25°C)
• Output noise is 1.5µVRMS (typ, VIN = 0V, TA = 25°C)
• 28 lead plastic SSOP package, operating temperature range from -40°C to 85°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party