A/D, 3 Digit BCD, +5V
Rochester Electronics is the only authorized source of Analog Devices' products that have previously been discontinued or have become obsolete. Product availability should be checked directly with Rochester Electronics.
The technology utilized in the AD2020 is Integrated Injection Logic (I2L), an extension of the long proven, high yield bipolar process. This technique offers a significantly higher circuit packing density. The input amplifier, comparator, band-gap reference, counters, clock, control logic, multiplexer and drivers needed to implement the dual slope conversion, are all included on a single die.
The AD2020, although it has an internal reference, consumes only SOmWof power and is operated from a single +5V supply, unlike most DPM chips requiring two (2) supplies. The DPM chip is packaged in a standard size 16 pin-dual-in-line package. Utilizing a unique double passivation and noble-metal interconnect scheme, this plastic package offers essentially hermetic performance over a wide temperature range. The chip is available in two versions with differing guaranteed operating temperature ranges. The standard AD2020 is specified from 0 to +75°C and because of the special packaging technique, an extended temperature version is also available upon request.