Date: 19970520
From: Mike Sprecher
To: Multiple recipients of list CHIPDIR-L
Subject: Looking for data on OLD chips
>I'd like to get the pinout, or even better, the datasheets.
>
>The chips are:
>UA725HC (chip is stamped: FUA 725HC 7717)
The uA 725 (not HC) is equivalent to the ECG 925 (12$ 50c)
Instrumentation Op amp (outline is a tin can)
Pins:
1 Offset null
2 inverting input
3 non.inverting input
4 V - (connected to case)
5 frequency compensation
6 output
7 V +
8 Offset null
-----------------------
Supply Voltage +/- 3 ... 22 V
Power Diss. 500mW
Max Input Voltage = max. supply voltage or +/- 22 V
Open loop gain 3'000'000
input voltage drift 0.6 uV/Celsius
Offset null capacity
Hope thats sufficient. I can supply more, if required
Greetings,
Catalyst
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