LT 2078/LT 2079
The
q
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).
SYMBOL PARAMETER
V
OS
∆V
OS
∆T
I
OS
I
B
A
VOL
CMRR
PSRR
Input Offset Voltage
Input Offset Voltage Drift
(Note 6)
Input Offset Current
Input Bias Current
Large-Signal Voltage Gain
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Maximum Output Voltage Swing
I
S
Supply Current per Amplifier
V
O
=
±10V,
R
L
= 5k
V
CM
= 13V, –15V
V
S
= 5V, 0V to
±18V
R
L
= 5k
CONDITIONS
LT2078
LT2079
LT2078
LT2079
q
q
q
q
q
q
q
q
q
q
q
ELECTRICAL CHARACTERISTICS
LT2078AC/LT2079AC
MIN
TYP
MAX
70
80
0.5
0.6
0.06
6
300
95
98
±11.0
1200
112
112
±13.6
49
73
330
410
1.8
3.0
0.35
9
LT2078C/LT2079C
MIN
TYP
MAX
90
100
0.6
0.7
0.06
6
250
92
95
±11.0
1200
112
112
±13.6
50
85
460
540
2.5
3.8
0.50
11
UNITS
µV
µV
µV/°C
µV/°C
nA
nA
V/mV
dB
dB
V
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
Distribution of Offset Voltage
Drift with Temperature
OFFSET CURRENT (pA)
25
V
S
= 5V, 0V
V
CM
= 0.1V
80 LT2078'S
25 LT2079'S
= 260 OP AMPS
INPUT BIAS CURRENT (nA)
20
PERCENT OF UNITS (%)
15
10
BIAS CURRENT (nA)
5
0
–2
0
1
–1
2
OFFSET VOLTAGE DRIFT WITH TEMPERATURE (µV/°C)
LT2078/79 • TPC01
U W
Input Bias and Offset Currents vs
Temperature
100
V
S
= 5V, 0V TO
±15V
I
OS
0
Input Bias Current vs
Common Mode Voltage
V
S
= 5V, 0V
–2
–4
–6
–8
–10
–12
–1
0
1
2
3
COMMON MODE VOLTAGE (V)
4
T
A
= 125°C
T
A
= –55°C
T
A
= 25°C
50
0
–5
I
B
–6
–7
–50 –25
50
0
75
25
TEMPERATURE (°C)
100
125
LT2078/79 • TPC02
LT2078/79 • TPC03
20789fa
5
LINEAR_DIMENSIONS [ LINEAR DIMENSIONS SEMICONDUCTOR ]
