參數(shù)資料
型號(hào)： LF412C
廠商： Texas Instruments, Inc.
英文描述： DUAL JFET-INPUT OPERATIONAL AMPLIFIER
中文描述： 雙JFET輸入運(yùn)算放大器
文件頁(yè)數(shù)： 2/3頁(yè)
文件大小： 46K
代理商： LF412C
LF412C
DUAL JFET-INPUT OPERATIONAL AMPLIFIER
SLOS010B – MARCH 1987 – REVISED AUGUST 1994
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
3.5
–3.5
MAX
UNIT
V
V
Supply voltage, VCC +
Supply voltage, VCC –
18
–18
electrical characteristics over operating free-air temperature range, V
CC
±
=
±
15 V (unless otherwise
specified)
PARAMETER
TEST CONDITIONS
RS = 10 k
TA
25
°
C
MIN
TYP
MAX
UNIT
VIO
Input offset voltage
VIC = 0,
1
3
mV
α
VIO
Average temperature coefficient of input offset
voltage
VIC = 0,
RS = 10 k
10
20
μ
V/
°
C
IIO
Inp t offset c rrent§
Input offset current§
VIC= 0
VIC = 0
25
°
C
70
°
C
25
°
C
70
°
C
25
100
pA
4
nA
IIB
Inp t bias c rrent§
Input bias current§
VIC= 0
VIC = 0
50
200
pA
8
nA
VICR
Common-mode input voltage range
±
11
–11.5
to
14.5
±
13.5
200
V
VOM
Maximum peak output voltage swing
RL = 10 k
±
12
25
V
AVD
Large signal differential voltage
Large-signal differential voltage
VO=
±
VO =
10 V,
RL= 2 k
RL = 2 k
25
°
C
Full range
V/mV
15
200
1012
ri
CMRR
Input resistance
TA = 25
°
C
RS
≤
10 k
See Note 2
Common-mode rejection ratio
70
100
dB
kSVR
ICC
Full range is 0
°
C to 70
°
C.
At least 90% of the devices meet this limit for
α
VIO.
§Input bias currents of a FET-input operational amplifier are normal junction reverse currents, which are temperature sensitive. Pulse techniques
must be used that will maintain the junction temperatures as close to the ambient temperature as possible.
NOTE 2: Supply-voltage rejection ratio is measured for both supply magnitudes increasing or decreasing simultaneously.
Supply-voltage rejection ratio
70
100
dB
Supply current
4.5
6.8
mA
operating characteristics, V
CC
±
=
±
15 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VO1/VO2
SR
Crosstalk attenuation
f = 1 kHz
120
dB
V/
μ
s
MHz
nV/
√
Hz
pA/
√
Hz
Slew rate
8
13
B1
Vn
In
Unity-gain bandwidth
2.7
3
Equivalent input noise voltage
f = 1 kHz,
RS = 20
18
Equivalent input noise current
f = 1 kHz
0.01
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參數(shù)描述
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