Special 24 4 passways of increment totalizing ADC of Ling Li have calibrated temperature sensors
Dainty, 24 Location, 4 It has the calibrated temperature sensor that the increment of the passway adds ADC hard And Easy Drive input current dispels technology Ling Li belong to special company (Linear technology Corporation) Put out 4 passways of increment totalizing analog-digital converters (ADC) LTC2492, this device has integrated a temperature sensor and a novel front end design in dainty 4mm x 3mm DFN capsulated. Easy DriveTM of LTC2492 designs average differentiating input current produced as zero, so input the power on the high impedance of measurable quantity without the internal dashpot. This patent sampling circuit has simplified the design of the signal regulation circuit of forward end, and allow to drive this ADC with electrical bridge, RTD, heat electric coupling and high impedance sensor directly. The rail can be digitized directly, keep remarkable DC accuracy grade ( 2ppm INL) at the same time to the rail input signal . LTC2492 includes a high-accuracy internal temperature sensor, this sensor has the absolute accuracy of resolution rate 2oC of 1/30oC. This ADC changes the output of the temperature sensor or input multiplexer, can dispose into 4 single-end passways, two difference subchannels, or two pieces of single-end and add a difference subchannel. After choosing a new passway, the undelelayed increment totalizing (No Latency Delta-SigmaTM) of LTC2492 The digital filter is steady within one cycle. LTC2492 changes at a rate that 15Hz or 7.5Hz while using the internal Shaker through Line 4 SPI compatible serial interface communication. LTC2492 can configure to and inhibit 50Hz, 60Hz or line inhibiting 50Hz/60Hz at the same time frequently, and keep the noise of 600nVRMS within the range of whole input voltage. In terms of relatively application of the low resolution, Ling Li, the special company has also introduced the pin 16 compatible ADC LTC2488s. LTC2492 and LTC2488 all adopt DFN-14( 4mm x 3mm) Capsulate, the compatible and series that the code is compatible that offer a pin optimally to the characteristic / cost. Two Easy Drive these tired to add ADC, have commercial industrial the intersection of temperature and operating range in increment. Regard 1,000 as the unit to buy in batches, the trigger price of each slice of LTC2492 is 2.95 dollars, and LTC2488 is 2.15 dollars. The photo explains: 24, 4 The passway Easy Drive increment adds ADC hard Characteristic summary: LTC2492