MAX187BCWE

The MAX187BCWE is one member of the MAX187 series.It has the following features including (1)12-bit resolution;(2)internal track/hold, 75kHz sampling rate;(3)single +5V operation;(4)3-wire serial interface, compatible with SPI,QSPI, and microwire;(5)small-footprint 8-pin DIP and 16-pin SO.

The MAX187BCWE serial 12-bit analog-to-digital converters (ADCs) operate from a single +5V supply and accept a 0V to 5V analog input. Both parts feature an 8.5s successive-approximation ADC, a fast track/hold (1.5s), an on-chip clock, and a high-speed 3-wire serial interface.The MAX187 digitize signals at a 75ksps throughput rate. An external clock accesses data from the interface, which communicates without external hardware to most digital signal processors and microcontrollers.The MAX187 has an on-chip buffered reference.The MAX187 save space with 8-pin DIP and 16-pin SO packages. Power consumption is 7.5mW and reduces to only 10W in shutdown.Excellent AC characteristics and very low power consumption combined with ease of use and small package size make these converters ideal for remote DSP and sensor applications, or for circuits where power consumption and space are crucial.

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device.These are stress ratings only, and functionaloperation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.remainder of the conversion cycle to restore node ZERO to 0V within the limits of a 12-bit resolution. This action is equivalent to transferring a charge from CHOLD to the binary-weighted capacitive DAC, which in turn forms a digital representation of the analog input signal. At the conversion's end, the input side of CHOLD switches back to AIN, and CHOLD charges to the input signal again.The ADCs' input tracking circuitry has a 4.5MHz smallsignal bandwidth, and an 8V/s slew rate. It is possible to digitize high-speed transient events and measure periodic signals with bandwidths exceeding the ADC's sampling rate by using undersampling techniques. To avoid aliasing of unwanted high-frequency signals into the frequency band of interest, an anti-alias filter is recommended.