4
LT2078/LT2079
20789fa
LT2078AI/LT2079AI LT2078I/LT2079I
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT2078 90 430 120 600 µV
LT2079 100 500 130 700 µV
V
OS
Input Offset Voltage Drift LT2078 0.5 1.8 0.6 2.5 µV/°C
T (Note 6) LT2079 0.6 3.0 0.7 3.8 µV/°C
I
OS
Input Offset Current 0.07 0.70 0.1 1.0 nA
I
B
Input Bias Current 710 712 nA
A
VOL
Large-Signal Voltage Gain V
O
= ±10V, R
L
= 5k 200 700 150 700 V/mV
CMRR Common Mode Rejection Ratio V
CM
= 13V, –14.9V 92 110 88 110 dB
PSRR Power Supply Rejection Ratio V
S
= 5V, 0V to ±18V 96 110 92 110 dB
Maximum Output Voltage Swing R
L
= 5k ±11.0 ±13.5 ±11.0 ±13.5 V
I
S
Supply Current per Amplifier 52 80 54 95 µA
The denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25°C.
V
S
= ±15V, –40°C T
A
85°C for I grades, unless otherwise noted.
LT2078AC/LT2079AC LT2078C/LT2079C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
A
VOL
Large-Signal Voltage Gain V
O
= 0.05V to 4V, No Load 150 750 110 750 V/mV
V
O
= 0.05V to 3.5V, R
L
= 50k 110 500 80 500 V/mV
Maximum Output Voltage Output Low, No Load
4.0 7 4.0 7 mV
Swing Output Low, I
SINK
= 100µA 105 150 105 150 mV
Output High, No Load
4.1 4.3 4.1 4.3 V
Output High, 2k to GND 3.3 3.8 3.3 3.8 V
I
S
Supply Current per Amplifier 40 55 42 63 µA
V
S
= ±15V, T
A
= 25°C, unless otherwise noted.
LT2078AC/LT2078AI LT2078C/LT2078I
LT2079AC/LT2079AI LT2079C/LT2079I
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT2078 50 250 70 350 µV
LT2079 60 350 80 450 µV
I
OS
Input Offset Current 0.05 0.25 0.05 0.35 nA
I
B
Input Bias Current 6 8 6 10 nA
Input Voltage Range 13.5 13.8 13.5 13.8 V
–15.0 –15.3 –15.0 –15.3 V
CMRR Common Mode Rejection Ratio V
CM
= 13.5V, –15V 98 114 95 114 dB
PSRR Power Supply Rejection Ratio V
S
= 5V, 0V to ±18V 100 114 98 114 dB
A
VOL
Large-Signal Voltage Gain V
O
= ±10V, R
L
= 50k 1000 5000 1000 5000 V/mV
V
O
= ±10V, R
L
= 2k 400 1100 300 1100 V/mV
V
OUT
Maximum Output Voltage R
L
= 50k ±13.0 ±14.0 ±13.0 ±14.0 V
Swing R
L
= 2k ±11.0 ±13.2 ±11.0 ±13.2 V
SR Slew Rate 0.06 0.10 0.06 0.10 V/µs
I
S
Supply Current per Amplifier 46 65 47 75 µA
ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
S
= 5V, 0V, V
CM
= 0.1V, V
O
= 1.4V, 0°C T
A
70°C, unless otherwise noted.
5
LT2078/LT2079
20789fa
LT2078AC/LT2079AC LT2078C/LT2079C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT2078 70 330 90 460 µV
LT2079 80 410 100 540 µV
V
OS
Input Offset Voltage Drift LT2078 0.5 1.8 0.6 2.5 µV/°C
T (Note 6) LT2079 0.6 3.0 0.7 3.8 µV/°C
I
OS
Input Offset Current 0.06 0.35 0.06 0.50 nA
I
B
Input Bias Current 69 611 nA
A
VOL
Large-Signal Voltage Gain V
O
= ±10V, R
L
= 5k 300 1200 250 1200 V/mV
CMRR Common Mode Rejection Ratio V
CM
= 13V, –15V 95 112 92 112 dB
PSRR Power Supply Rejection Ratio V
S
= 5V, 0V to ±18V 98 112 95 112 dB
Maximum Output Voltage Swing R
L
= 5k ±11.0 ±13.6 ±11.0 ±13.6 V
I
S
Supply Current per Amplifier 49 73 50 85 µA
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Typical parameters are defined as the 60% yield of parameter
distributions of individual amplifiers, i.e., out of 100 LT2079s (or 100
LT2078s) typically 240 op amps (or 120) will be better than the indicated
specification.
Note 3: This parameter is tested on a sample basis only. All noise
parameters are tested with V
S
= ±2.5V, V
O
= 0V.
Note 4: This parameter is guaranteed by design and is not tested.
Note 5: Power supply rejection ratio is measured at the minimum supply
voltage. The op amps actually work at 1.8V supply but with a typical offset
skew of –300µV.
Note 6: This parameter is not 100% tested.
Note 7: The LT2078C/LT2079C 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
U
W
ELECTRICAL CHARACTERISTICS
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
S
= ±15V, 0°C T
A
70°C, unless otherwise noted (Note 7).
Input Bias Current vs
Common Mode Voltage
COMMON MODE VOLTAGE (V)
–1
INPUT BIAS CURRENT (nA)
0
–2
–4
–6
–8
–10
–12
0123
LT2078/79 • TPC03
4
T
A
= 125°C
T
A
= –55°C
V
S
= 5V, 0V
T
A
= 25°C
Input Bias and Offset Currents vs
Temperature
TEMPERATURE (°C)
–50
BIAS CURRENT (nA) OFFSET CURRENT (pA)
100
50
0
–5
–6
–7
0
50
75
LT2078/79 • TPC02
–25
25
100
125
I
OS
I
B
V
S
= 5V, 0V TO ±15V
Distribution of Offset Voltage
Drift with Temperature
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
PERCENT OF UNITS (%)
25
20
15
10
5
0
LT2078/79 • TPC01
–2
–1
0 1
2
V
S
= 5V, 0V
V
CM
= 0.1V
80 LT2078'S
25 LT2079'S
= 260 OP AMPS
6
LT2078/LT2079
20789fa
TIME (SEC)
0
NOISE VOLTAGE (0.4µV/DIV)
8
LT2078/79 • TPC04
2
4
6
10
CHANNEL A
CHANNEL B
T
A
= 25°C
V
S
= ±2.5V
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Noise Spectrum
0.01Hz to 10Hz Noise
TIME (SEC)
0
NOISE VOLTAGE (0.4µV/DIV)
80
LT2078/79 • TPC05
20
40
60
100
CHANNEL B
T
A
= 25°C
V
S
= ±2.5V
CHANNEL A
0.4µV
FREQUENCY (Hz)
0.1 1 100
10
VOLTAGE NOISE DENSITY (nV/Hz)
CURRENT NOISE DENSITY (fA/Hz)
100
30
1000
300
10 1000
LT2078/79 • TPC06
CURRENT
NOISE
VOLTAGE
NOISE
1/f CORNER
0.7Hz
T
A
= 25°C
V
S
= ±2.5V
(AT V
S
= ±15V
VOLTAGE NOISE
IS 4% LESS
CURRENT NOISE
IS UNCHANGED)
Warm-Up Drift
Long Term Stability of Two
Representative Units (LT2078)10Hz Voltage Noise Distribution
VOLTAGE NOISE DENSITY (nV/Hz)
25
LT2078/79 • TPC07
30
35 40
PERCENT OF UNITS
35
30
25
20
15
10
5
0
T
A
= 25°C
V
S
= ±2.5V
TIME AFTER POWER-ON (MINUTES)
0
CHANGE IN OFFSET VOLTAGE (µV)
LT2078/79 • TPC09
12
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
3
T
A
= 25°C
V
S
= ±15V
WARM UP DRIFT
AT V
S
= 5V, 0V IS
IMMEASURABLY LOW
LT2079
LT2078
TIME (MONTHS)
0
OFFSET VOLTAGE CHANGE (µV)
1234
LT2078/79 • TPC08
5
15
10
5
0
–5
–10
–15
T
A
= 25°C, V
S
= 5V, 0V
V
CM
= 0.1V
1A
2B
1B
2A
Output Voltage Swing vs
Load Current
Output Saturation vs Temperature
vs Sink CurrentMinimum Supply Voltage
POSITIVE SUPPLY VOLTAGE (V)
0
INPUT OFFSET VOLTAGE (µV)
100
0
100
200
300
400
500
LT2078/79 • TPC10
1
23
V
= 0V
0.1V V
CM
0.4V
125°C
–55°C
0°C
25°C
70°C
NONFUNCTIONAL
TEMPERATURE (°C)
–50
SATURATION VOLTAGE (mV)
1000
100
10
1
25 125
LT2078/79 • TPC11
0 25 50 10075
I
SINK
= 2mA
I
SINK
= 1mA
I
SINK
= 100µA
I
SINK
= 1µA
NO LOAD
R
L
= 5k TO GND
I
SINK
= 10µA
V
S
= 5V, 0V
SOURCING OR SINKING LOAD CURRENT (mA)
0.01
OUTPUT VOLTAGE SWING (V)
V
+
V
+
– 1
V
+
– 2
V
+ 2
V
+ 1
V
10
LT2078/79 • TPC11.5
0.1 1
125°C
25°C
–55°C
125°C
–55°C
25°C
0.1Hz to 10Hz Noise

LT2078AIS8#TRPBF

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers Dual uP Op Amp
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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