LT2179 Просмотр технического описания (PDF) - Linear Technology
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LT2179 Datasheet PDF : 12 Pages
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LT 2178/LT 2179
ELECTRICAL CHARACTERISTICS VS = ±15V, 0°C ≤ TA ≤ 70°C, unless otherwise noted.
SYMBOL PARAMETER
VOS
Input Offset Voltage
CONDITIONS
LT2178
LT2179
∆VOS
∆T
IOS
IB
AVOL
CMRR
PSRR
IS
Input Offset Voltage Drift
Input Offset Current
Input Bias Current
Large-Signal Voltage Gain
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Maximum Output Voltage Swing
Supply Current per Amplifier
LT2178 (Note 5)
LT2179
VO = ±10V, RL = 50k
VCM = 13V, –15V
VS = 5V, 0V to ±18V
RL = 5k
LT2178AC/LT2179AC
MIN TYP MAX
q
100 480
q
120 550
q
0.6 1.8
0.7 3.0
q
0.06 0.35
q
3
6
q 200 800
q 94 104
q 93 110
q ±11.0 ±13.6
q
17
24
LT2178C/LT2179C
MIN TYP MAX
130 660
150 750
0.7 2.5
0.9 4.0
0.06 0.35
3
7
150 750
91 104
91 110
±11.0 ±13.6
18
28
UNITS
µV
µV
µV/°C
µV/°C
nA
nA
V/mV
dB
dB
V
µA
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Typical parameters are defined as the 60% yield of parameter
distributions of individual amplifiers, i.e., out of 100 LT2179s (or 100
LT2178s) typically 240 op amps (or 120) will be better than the indicated
specification.
Note 2: This parameter is tested on a sample basis only. All noise
parameters are tested with VS = ±2.5V, VO = 0V.
Note 3: This parameter is guaranteed by design and is not tested.
Note 4: Power supply rejection ratio is measured at the minimum supply
voltage. The op amps actually work at 1.7V supply but with a typical offset
skew of –300µV.
Note 5: This parameter is not 100% tested.
Note 6: During testing at –40°C, the 5V power supply turn-on time is less
than 0.5s.
Note 7: The LT2178C/LT2179C are designed, characterized and expected
to meet the industrial temperature limits, but are not tested at – 40°C and
85°C. I-grade parts are guaranteed.
TYPICAL PERFORMANCE CHARACTERISTICS
Distribution of Input
Offset Voltage
800
VS = 5V, 0V
TA = 25°C
2500 OP AMPS
600 TESTED
400
200
0
–150 –100 –50 0 50 100 150
OFFSET VOLTAGE (µV)
LT2178/79 • TPC01
Minimum Supply Voltage
100
V– = 0V
0
–100
–200
85°C
–300
–400
NONFUCTIONAL
25°C
– 40°C
–500
0
1
2
3
POSITIVE SUPPLY VOLTAGE (V)
LT2178/79 • TPC02
Input Bias and Offset Currents vs
Temperature
100
VS = 5V, 0V
75
IOS
50
25
–2.5
–3.0
IB
–3.5
–4.0
–50 –25
0 25 50 75 100
TEMPERATURE (°C)
LT2178/79 • TPC03
5
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