LT2178/LT2179
5
21789fc
The l denotes the specifi cations which apply over the full operating temperature range. V
S
= ±15V, –40°C ≤ T
A
≤ 85°C for I-grades,
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS
LT2178AI LT2178I/LT2179I
UNITSMIN TYP MAX MIN TYP MAX
V
OS
Input Offset Voltage LT2178
LT2179
l
l
100
100
650
650
130
130
740
740
µV
µV
ΔV
OS
ΔT
Input Offset Voltage Drift LT2178 (Note 5)
LT2179
l
0.6
0.7
1.8
3
0.7
0.9
2.5
4
µV/ºC
µV/ºC
I
OS
Input Offset Current
l
0.07 0.7 0.1 1 nA
I
B
Input Bias Current
l
37 48 nA
A
VOL
Large-Signal Voltage Gain
V
O
= ±10V, R
L
= 50k
l
150 500 100 500 V/mV
CMRR Common Mode Rejection Ratio V
CM
= 13V, –14.9V
l
90 105 88 103 dB
PSRR Power Supply Rejection Ratio
V
S
= 0V, 5V to ±18V
l
92 110 88 109 dB
Maximum Output Voltage Swing R
L
= 5k
l
±11 ±13.5 ±11 ±13.5
V
I
S
Supply Current per Amplifi er
l
18 28 19 30 µA
SYMBOL PARAMETER CONDITIONS
LT2178AC/LT2179AC LT2178C/LT2179C
UNITSMIN TYP MAX MIN TYP MAX
V
OS
Input Offset Voltage LT2178
LT2179
l
l
100
120
480
550
130
150
660
750
µV
µV
ΔV
OS
ΔT
Input Offset Voltage Drift LT2178 (Note 5)
LT2179
l
0.6
0.7
1.5
3
0.7
0.9
2.5
4
µV/ºC
µV/ºC
I
OS
Input Offset Current
l
0.06 0.35 0.06 0.35 nA
I
B
Input Bias Current
l
36 37 nA
A
VOL
Large-Signal Voltage Gain
V
O
= ±10V, R
L
= 50k
l
200 800 150 750 V/mV
CMRR Common Mode Rejection Ratio V
CM
= 13V, –15V
l
94 104 91 104 dB
PSRR Power Supply Rejection Ratio R
L
= 5k
l
93 110 91 110 dB
Maximum Output Voltage Swing R
L
= 5k
l
±11 ±13.6 ±11 ±13.6
V
I
S
Supply Current per Amplifi er
l
17 24 18 28 µA
The l denotes the specifi cations which apply over the full operating temperature range. V
S
= ±15V, 0°C ≤ T
A
≤ 70°C, unless otherwise noted.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Typical parameters are defi ned as the 60% yield of parameter
distributions of individual amplifi ers, i.e., out of 100 LT2179s (or 100
LT2178s) typically 240 op amps (or 120) will be better than the indicated
specifi cation.
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 1.7V supply but with a typical offset
skew of –300µV.
Note 6: This parameter is not 100% tested.
Note 7: During testing at –40°C, the 5V power supply turn-on time is less
than 0.5s.
Note 8: 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.
The l denotes the specifi cations which apply over the full operating
temperature range. V
S
= 5V, 0V, V
CM
= 0.1V, V
O
= 1.4V, –40°C ≤ T
A
≤ 85°C for I-grades, unless otherwise noted. (Note 6)
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS
LT2178AC/LT2178AI
LT2179AC
LT2178C/LT2178I
LT2179C/LT2179I
UNITSMIN TYP MAX MIN TYP MAX
GBW Gain Bandwidth Product f
O
≤ 5kHz 85 85 kHz
I
S
Supply Current per Amplifi er 16 21 17 25 µA
