Overview: DATASHEET ISL24211
Programmable V Calibrator with EEPROM and Output Buffer FN7585 Rev 0.00 February 23, 2011 The ISL24211 is an 8-bit programmable current sink that can be used in conjunction with an external voltage divider to generate a voltage source (V) positioned between the analog supply voltage and ground. The current sink’s full-scale range is controlled by an external resistor, RSET. With the appropriate choice of external resistors R1 and R2, the V voltage range can be controlled between any arbitrary voltage range. The ISL24211 has an 8-bit data register and 8-bit EEPROM for storing both a volatile and a permanent value for its output, with an I2C interface to read and write to the register and EEPROM. After the part is programmed, the I2C interface is no longer needed; on power-up the EEPROM contents are automatically transferred to the data register, and the pre-programmed output voltage appears on the V_OUT pin.
