LTC2351IUH-12#PBF

LTC®2351-12 is a 12bit, 1.5Msps ADC with six simultaneously sampled differential inputs. A Sleep shutdown mode further reduces power consumption to 12μW. The combination of low power and tiny package makes the LTC2351-12 suitable for portable applications. The LTC2351-12 contains six separate differential inputs that are sampled simultaneously on the rising edge of the CONV signal. This six sampled input is then converted at a rate of 250Ksps per channel. The 83dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source. Any analog input may swing rail-to-rail as long as the differential input range is maintained. The conversion sequence can be abbreviated to convert fewer than six channels, depending on the logic state of the SEL2, SEL1 and SEL0 inputs. Application includes multiphase power measurement, multiphase motor control, data acquisition systems, uninterruptable power supplies.

• 250Ksps throughput per channel
• Signal-to-noise plus distortion ratio is 72dB (typ, 100KHz input signal)
• Low power dissipation is 16.5mW, 3V single supply operation
• 2.5V internal bandgap reference, can be overdriven with external reference
• 3-Wire SPI-compatible serial interface, internal conversion triggered by CONV
• SLEEP (12μW) shutdown mode, NAP (4.5mW) shutdown mode
• Resolution is 12bits (min, TA = 25°C, VDD = VCC = 3V)
• Integral linearity error is ±0.25LSB (typ, TA = 25°C, VDD = VCC = 3V)
• Offset error is ±1mV (typ, TA = 25°C, VDD = VCC = 3V)
• 32 pin plastic QFN 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