ML2252

Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
Supply Voltage, VCC .............................................................. 6.5V
Logic Inputs ....................................... 0.3V to VCC 0.3V
Analog Inputs ..................................... 0.3V to VCC 0.3V
Input Current per Pin ............................................±25mA
Storage Temperature ................................ 65°C to 150°C
Lead Temperature (Soldering 10 sec.) .................... 260°C
Thermal Resistance (qJA)
20-Pin PDIP ..................................................... 67°C/W
20-Pin PLCC .................................................... 78°C/W
28 Pin PDIP ..................................................... 48°C/W
28-Pin PLCC .................................................... 68°C/W

The ML2252 and ML2259 combine an 8-bit A/D converter, 2- or 8-channel analog multiplexer, and a microprocessor compatible 8-bit parallel interface and control logic in a single monolithic CMOS device.

Easy interface to microprocessors is provided by the latched and decoded multiplexer address inputs and a double buffered three-state data bus. These analog-todigital converters allow the microprocessor to operate completely asynchronous to the converter clock.

The built in sample and hold function of ML2252 provides the ability to digitize a 5V, 50kHz sinewave to 8-bit accuracy. The differential comparator design provides low power supply sensitivity to DC and AC variations. The voltage reference can be externally set to any value between ground and VCC, thus allowing a full conversion over a relatively small span. All parameters of ML2252 are guaranteed over temperature with a power supply voltage of 5V ±10%.

The ML2252 is suitable for a wide range of applications from process and machine control to consumer, automotive, and telecommunication applications.