ba3121f ROHM Co. Ltd., ba3121f Datasheet - Page 2

• Manufacturer Part Number: ba3121f
• Description: Ground Isolation Amplifier
• Manufacturer: ROHM Co. Ltd.

Electrical characteristics (unless otherwise noted, Ta = 25°C, VCC = 12V, f = 1kHz, Rg = 1.8kΩ)
Electrical characteristics curves
vs. power supply voltage
vs. power supply voltage
Fig.1 Quiescent current
Note: This IC is not designed to be radiation-resistant.
Quiescent current
Output noise voltage
Voltage gain
Maximum output voltage
Total harmonic distortion
Common-mode rejection ratio
Common-made voltage
Ripple rejection ratio
Channel separation
Slew rate
Input resistance
Fig.4 Voltage gain
Parameter
Symbol
CMRR
THD
V
V
V
RR
CS
SR
R
G
I
OM
CM
Q
NO
IN
V
Fig.5 Voltage gain vs. frequency
Fig.2 Maximum output voltage
vs. power supply voltage
Min.
-1.5
5.6
1.8
2.5
41
72
44
－
－
－
－
0.002
-0.04
2/8
3.75
Typ.
9.0
2.0
3.5
2.0
57
80
82
55
Max.
14.0
0.02
8.0
1.5
66
－
－
－
－
－
－
μV
V/μS
V
V
Unit
mA
kΩ
dB
dB
dB
dB
％
rms
rms
rms
V
BPF＝20Hz-20kHz
V
THD＝0.1％, Vcc＝8V
V
Vcc＝8V,CMRR＝40dB
f
R
V
R
RR
IN
O
O
IN
g
g
＝0Ω
＝1.8kΩ/OPEN
＝－10dBm, R
＝0.7V
＝100Hz,V
＝0V
＝－10dBm,
Fig.3 Output noise voltage
Fig.6 Channel separation
vs. power supply voltage
rms
rms
Conditions
vs. frequency
RR
＝－10dBm,
g
＝0Ω