HA17902P Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics
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производитель
HA17902P Datasheet PDF : 14 Pages
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HA17902 Series
Test Circuits
1. Input offset voltage (VIO), input offset current (IIO), and Input bias current (IIB) test circuit
Rf 5k
SW1
VCC
RS 50
–
R 10k
RS 50 R 10k
+
Rf 5k SW2
VCM
Vout
V
SW1 SW2 VO
On
Off
On
Off
VO1
VO2
VCM =
1
2
VCC
On Off VO3
Off On VO4
VIO
=
1
VO1
+ Rf /
RS
IIO =
VO2 – VO1
R(1 + Rf / RS)
(mV)
(nA)
IIB =
| VO4 – VO3 |
2 · R(1 + Rf / RS)
(nA)
2. Common-mode rejection ratio (CMR) test circuit
CMR = 20 log VIN · Rf (dB)
VO · RS
Rf 5.0k
RS 50
VCC
–
+
RS 50 Rf
Vin
5.0k
Vout
3. Supply current (ICC) test circuit
A
VCC
–
Vout
+
5
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