參數(shù)資料
型號: S-89440ANC-HBX-TF
英文描述: Operational Amplifier
中文描述: 運算放大器
文件頁數(shù): 9/14頁
文件大?。?/td> 129K
代理商: S-89440ANC-HBX-TF
MINI-ANALOG SERIES CMOS SINGLE OPERATIONAL AMPLIFIER
Rev.1.0
S-8944XA Series
Seiko Instruments Inc.
9
8. Slew rate (SR)
VOUT
VOUT
IN(+)=VDD
IN(+)=0V
tTLH
tTHL
VOH
VOL
tR= tF=1
μ
s (0V to VDD)
Rising:
Falling:
VOH
VOL
t
THL
SR =
VOH
VOL
t
TLH
SR =
Figure 10
VOH=2.7 V (at V
DD
=3.0 V), 1.62 V (at V
DD
=1.8 V), 0.81 V (at V
DD
=0.9 V)
VOL=0.3 V (at V
DD
=3.0 V), 0.18 V (at V
DD
=1.8 V), 0.09 V (at V
DD
=0.9 V)
9. Voltage gain (Open loop)
Voltage gain (Open loop) (AVOL)
Measure V
OUT
for each V
M
.
Calculate the voltage gain (AVOL) by the
following fomula:
Test Conditions:
When V
M
= V
DD
-0.1 V;
V
M
=V
M1
V
OUT
=V
OUT1
When V
M
= 0.1 V;
V
M
=V
M2
V
OUT
=V
OUT2
Figure 11
RF
RS
RS
RF
+
D.U.T
VDD
VDD/2
VDD/2
1M
VDD/2
VM
+
NULL
VOUT
NVSS
NVDD
(
)
AVOL
20log
V
- V
V
V
R
R
R
M1
M2
OUT1
OUT2
F
S
S
=
×
+
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