LT1881(RevA) Просмотр технического описания (PDF) - Linear Technology
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Компоненты Описание
производитель
LT1881
(Rev.:RevA)
(Rev.:RevA)
Linear Technology
LT1881 Datasheet PDF : 16 Pages
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LT1881/LT1882
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
Split supply operation VS = ±15V, VCM = 0V unless otherwise noted. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IB
Input Bias Current (LT1881A)
0°C < TA < 70°C
– 40°C < TA < 85°C
Input Bias Current (LT1881/LT1882)
0°C < TA < 70°C
– 40°C < TA < 85°C
Input Noise Voltage
0.1Hz to 10Hz
en
Input Noise Voltage Density
in
Input Noise Current Density
RIN
Input Resistance
f = 1kHz
f = 1kHz
Differential Mode
Common Mode
150
200
pA
●
250
pA
●
300
pA
150
500
pA
●
600
pA
●
700
pA
0.5
μVP-P
14
nV/√Hz
0.03
pA/√Hz
●
20
MΩ
●
100
GΩ
CIN
Input Capacitance
VCM
Input Voltage Range
●
2
pF
V– + 1.0
● V– + 1.2
V+ – 1.0
V
V+ – 1.2
V
CMRR
Common Mode Rejection Ratio
–13.5V < VCM < 13.5V
●
114
130
dB
+PSRR
Positive Power Supply Rejection Ratio V– = –15V, VCM = 0V; 1.5V < V+ < 18V ●
110
132
dB
–PSRR
Negative Power Supply Rejection Ratio V+ = 15V, VCM = 0V; –1.5V < V– < –18V ●
106
132
dB
Minimum Operating Supply Voltage
●
±1.2
±1.35
V
AVOL
Large-Signal Voltage Gain
RL = 10k; –13.5V < VOUT < 13.5V
1000
1600
●
700
V/mV
V/mV
RL = 2k; –13.5V < VOUT < 13.5V
175
420
●
125
V/mV
V/mV
RL = 1k; –12V < VOUT < 12V
90
230
●
65
V/mV
V/mV
VOL
Output Voltage Swing Low
(Referred to VEE)
VOH
Output Voltage Swing High
(Referred to VCC)
IS
Supply Current Per Amplifier
ISC
Short-Circuit Current
No Load
ISINK = 100μA
ISINK = 1mA
ISINK = 5mA
No Load
ISOURCE = 100μA
ISOURCE = 1mA
ISOURCE = 5mA
VS = ±15V
VOUT Short to V–
VOUT Short to V+
●
20
40
mV
●
25
50
mV
●
70
150
mV
●
270
600
mV
●
160
220
mV
●
160
230
mV
●
180
300
mV
●
360
600
mV
0.5
0.85
1.1
mA
●
1.6
mA
20
40
mA
●
15
40
mA
20
30
mA
●
15
30
mA
GBW
Gain Bandwidth Product
f = 20kHz
0.4
0.85
MHz
Channel Separation
f = 1kHz
120
dB
tS
Settling Time
SR +
Slew Rate Positive
0.01%, VOUT = – 5V to 5V,
AV = –1, RL = 2k
35
μs
AV = – 1
0.21
0.4
V/μs
●
0.18
V/μs
18812fa
5
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