LT1884 Просмотр технического описания (PDF) - Linear Technology
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LT1884 Datasheet PDF : 12 Pages
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LT1884/LT1885
ELECTRICAL CHARACTERISTICS
The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
Single supply operation VEE = 0, VCC = 5V; VCM = VCC/2 unless otherwise noted. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IB
en
in
VCM
CMRR
PSRR
Input Bias Current (LT1884A)
Input Bias Current (LT1884/LT1885)
Input Noise Voltage
Input Noise Voltage Density
Input Noise Current Density
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
0°C < TA < 70°C
– 40°C < TA < 85°C
0°C < TA < 70°C
– 40°C < TA < 85°C
0.1Hz to 10Hz
f = 1kHz
f = 1kHz
1V < VCM < 4V
1.2V < VCM < 3.8V
VEE = 0, VCM = 1.5V
0°C < TA < 85°C, 2.7V < VCC < 32V
TA = – 40°C, 3V < VCC < 32V
100
400
pA
q
500
pA
q
600
pA
150
900
pA
q
1200
pA
q
1400
pA
0.4
µVP-P
9.5
nV/√Hz
0.05
pA/√Hz
VEE + 1.0
q VEE + 1.2
VCC – 1.0
V
VCC – 1.2
V
108
128
dB
q
106
dB
q
108
132
dB
108
132
dB
q
2.4
2.7
V
AVOL
Large-Signal Voltage Gain
RL = 10k; 1V < VOUT < 4V
500
1600
q
350
V/mV
V/mV
RL = 2k; 1V < VOUT < 4V
400
800
q
300
V/mV
V/mV
RL = 1k; 1V < VOUT < 4V
300
400
q
200
V/mV
V/mV
VOL
Output Voltage Swing Low
VOH
Output Voltage Swing High
(Referred to VCC)
IS
Supply Current per Amplifier
No Load
ISINK = 100µA
ISINK = 1mA
ISINK = 5mA
No Load
ISOURCE = 100µA
ISOURCE = 1mA
ISOURCE = 5mA
VCC = 3V
q
20
40
mV
q
25
50
mV
q
70
150
mV
q
270
600
mV
q
120
220
mV
q
130
230
mV
q
180
300
mV
q
360
600
mV
0.45
0.65
0.85
mA
q
1.30
mA
VCC = 5V
0.50
0.65
0.9
mA
q
1.4
mA
VCC = 12V
0.50
0.70
1.0
mA
q
1.5
mA
ISC
Short-Circuit Current
GBW
Gain-Bandwidth Product
VOUT Short to GND
VOUT Short to VCC
f = 20kHz
q
15
30
mA
q
15
30
mA
1.2
2
MHz
tS
Settling Time
SR +
Positive Slew Rate
SR –
Negative Slew Rate
0.01%, VOUT = 1.5V to 3.5V,
AV = –1, RL = 2k
10
µs
AV = – 1
0.45
0.9
V/µs
q 0.36
V/µs
AV = – 1
0.35
0.7
V/µs
q 0.25
V/µs
3
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