S-89431A Seiko Instruments, S-89431A Datasheet - Page 11

• Manufacturer Part Number: S-89431A
• Description: MINI ANALOG SERIES 0.5 uA Rail-to-Rail CMOS OPERATIONAL AMPLIFIER
• Manufacturer: Seiko Instruments

Rev.5.1
8. Slew rate (SR):
9. Voltage gain (open loop)
The voltage gain (A
Voltage gain (open loop) (A
measured at each V
V
V
Measurement conditions:
When V
When V
V
Measured by the voltage follower circuit
IN (+) = V
IN (+) = 0 V
V
V
A
OH
OL
MINI ANALOG SERIES
CMR
OUT
OUT
VOL
_00
R
R
S
S
=V
=
When V
DD
20log
M
M
/ 2
DD
= V
= 0.1 V: V
2.7 V
0.3 V
R



F
DD
DD
D.U.T
V
−
+
Figure 16
= 3.0 V
OUT1
− 0.1 V: V
V
V
DD
M1
VOL
M
.
M
−
−
V
) can be calculated by the following formula, with the value of V
1 MΩ
DD
V
V
= V
M2
OUT2
/ 2
R
When V
t
F
M2
Figure 15
R
M
= t
VOL
, V
×
= V
R
F
1.62 V
0.18 V
)
OUT
F
= 1 µs (0 V ∼ V
0.5 µA Rail-to-Rail CMOS OPERATIONAL AMPLIFIER
R
t
t
M1
+
THL
TLH
DD
NULL
V
S
+
−
Seiko Instruments Inc.
R
, V
V
= V
M
= 1.8 V
V
S
DDN
SSN



OUT
OUT2
= V
When V
OUT1
DD
V
OUT
)
0.81 V
0.09 V
V
V
OH
OL
DD
= 0.9 V
When falling
When rising
SR
SR
=
=
V
V
OH
OH
t
t
THL
TLH
−
−
V
V
S-89430A/89431A
OL
OL
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