ML2258*

Features:

Conversion time                                                         6.6µs
Total unadjusted error                                               ±1/2LSB or ±1LSB
No missing codes
Sample and hold                                                        390ns acquisition
Capable of digitizing a 5V, 50kHz sine wave
8-input multiplexer
0V to 5V analog input range with single 5V power supply
Operates ratiometrically or with up to 5V voltage reference
No zero-or full-scale adjust required
Analog input protection                                            25mA per input min
Low power dissipation                                             3mA max
TTL and CMOS compatible digital inputs and outputs
Standard 28-pin DIP or surface mount PCC
Superior pin compatible replacement for ADC0808 and ADC0809


Pinout




Specifications

Supply Voltage, V_CC .............................................. 6.5V
Voltage
Logic Inputs .................................. 0.3V to V_CC +0.3V
Analog Inputs ............................... 0.3V to V_CC +0.3V
Input Current per Pin (Note 2) ..........................±25mA
Storage Temperature .....................  65°C to +150°C
Package Dissipation
at TA = 25°C (Board Mount) ............................875mW
Lead Temperature (Soldering 10 sec.)
Dual-In-Line Package (Plastic) .......................... 260°C
Molded Chip Carrier Package
Vapor Phase (60 sec.) .....................................  215°C
Infrared (15 sec.) ............................................  220°C


Description

The ML2258*combines an 8-bit A/D converter, 8-channel analog multiplexer, and a microprocessor compatible 8- bit parallel interface and control logic in a single monolithic device. Easy interface to microprocessors is provided by the latched and decoded multiplexer address inputs and latched three-state outputs. The ML2258* is suitable for a wide range of applications from process and machine control to consumer, automotive, and telecommunication applications.

The ML2258* is an enhanced, pin-compatible, second source for the industry standard ADC0808/ADC0809. The ML2258 enhancements are faster conversion time, true sample and hold function, superior power supply rejection, wider reference range, and a double buffered data bus as well as faster digital timing. All parameters of ML2258* are guaranteed over temperature with a power supply voltage of 5V ±10%.