zetex Bipolar Array

The Zetex 700 series bipolar arrays (now part of Diodes Inc.) offer a very low cost entry into custom ICs. As there is only a single metallisation layer required the NRE is very low and the turn-round time for prototype devices is very quick. With a range of devices from something small enough to fit in a SOT23 package to something large enough to replace a couple of dozen opamps, there is considerable flexibility to provide an innovative, low cost design solution either for improved product security, size or cost.

The devices are economical at low volumes, even as low as 1000 parts. In conjunction with an associate company, Key Design can ensure the supply of fully tested, packaged parts. While the arrays are mostly suited to analogue circuitry, limited digital logic can be added. Another option is to pair an analogue array with a small, low cost microcontroller. This can even be packaged with the analogue array for high volume applications resulting in a single, mixed signal product.

Circuits with quiescent current below 1µA running, even lower with shutdown. Input bias current cancellation can be used to reduce input bias current to below 500pA.

To visit the Diodes Inc web site, click on the Diodes logo below (opens in a new window).

IC Design Analogue Design
RF Design Digital Design
Opto Electronics

expertise

A large range of building blocks can be designed and interconnected such as:

bandgap reference
voltage regulator
double balanced mixer
opamp
instrumentation amplifier
buffer
constant current source
oscillator
temperature sensor
multiplexer
comparator
digital to analogue converter (DAC)
transimpedance amplifier (e.g. for photodiodes)

Circuit blocks

Key Parameters

BVCEO minimum 20V
NPN current gain of 200
NPN fT 800MHz
Schottky diodes
junction capacitors
3 resistor types
fusing option for trimming
zener diode
PNP
Large PNP
Large NPN up to 200mA

Chip Range

9 chips in the range
from 0.84mm square to 3mm square
4 pads to 48 pads
up to 630 transistors