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Zarlink Semiconductor Inc |
THIS DOCUMENT IS FOR MAINTENANCE
PURPOSES ONLY AND IS NOT
RECOMMENDED FOR NEW DESIGNS
ZN426E8
8-BIT D-A CONVERTER
MAY 1994
DS3021-2.2
The ZN426 is a monolithic 8-bit D-A converter
containing an R-2R ladder network of diffused resistors with
precision bipolar switches, and a 2.5V precision voltage
reference.
FEATURES
s ±1/2 LSB Linearity Error
s Guaranteed Monolithic over the Full Operating
Temperature Range
s 0°C to +70°C
s TTL and 5V CMOS Compatible
s Single 5V Supply
s Settling Time 1 microsecond Typical
s Only Reference Capacitor and Resistor Required
ABSOLUTE MAXIMUM RATINGS
Supply voltage +7.0V
Max.voltage, logic and VREF inputs+5.5V
Operating temperature range0°C to +70°C
Storage temperature range-55°C to +125°C
ORDERING INFORMATION
Ambient operating temperature 0°C to +70°C
Package, ZN426E8DP14
BIT 3
BIT 2
(MSB) BIT 1
ANALOG OUTPUT
VREF IN
VREF OUT
0V
1 14
2 13
3 12
4 ZN426E8 11
5 10
69
78
VCC (+5V)
BIT 4
BIT 5
BIT 6
BIT 7
BIT 8 (LSB)
NC
DP14
Fig.1 Pin connections (not to scale) - top view
Fig.2 System diagram
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