LT1881/LT1882
Dual and Quad
Rail-to-Rail Output, Picoamp
Input Precision Op Amps
DESCRIPTION
FEATURES
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Offset Voltage: 50μV Maximum (LT1881A)
Input Bias Current: 200pA Maximum (LT1881A)
Offset Voltage Drift: 0.8μV/°C Maximum
Rail-to-Rail Output Swing
Supply Range: 2.7V to 36V
Operates with Single or Split Supplies
Open-Loop Voltage Gain: 1 Million Minimum
1mA Maximum Supply Current Per Amplifier
Stable at AV = 1, CL = 1000pF
Standard Pinouts
Wide Operating Temperature Range:
–55°C to 125°C (LT1882)
APPLICATIONS
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Thermocouple Amplifiers
Bridge Transducer Conditioners
Instrumentation Amplifiers
Battery-Powered Systems
Photo Current Amplifiers
The LT®1881 and LT1882 op amps bring high accuracy
input performance to amplifiers with rail-to-rail output
swing. Input bias currents and capacitive load driving
capabilities are superior to the similar LT1884 and LT1885
amplifiers, at the cost of a slight loss in speed. Input
offset voltage is trimmed to less than 50μV and the
low drift maintains this accuracy over the operating
temperature range. Input bias currents are an ultralow
200pA maximum.
The amplifiers work on any total power supply voltage
between 2.7V and 36V (fully specified from 5V to ±15V).
Output voltage swings to within 40mV of the negative
supply and 220mV of the positive supply make these
amplifiers good choices for low voltage single supply
operation.
Capacitive loads up to 1000pF can be driven directly in
unity-gain follower applications.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
The dual LT1881 and LT1881A are available with standard
pinouts in S8 and PDIP packages. The quad LT1882 is in a
14-pin SO package. For a higher speed device with similar
DC specifications, see the LT1884/LT1885.
TYPICAL APPLICATION
16-Bit Voltage Output DAC on ± 5V Supply
TC VOS Distribution, Industrial Grade
5V
5V
PERCENT OF UNITS (%)
1.65k
+
LT1881
–
LT1634
4.096V
–5V
R1
RCOM
REF
ROFS
33pF
5V
DAC
–
LT1881
LTC®1597
+
26
24
22
20
18
16
14
12
10
8
6
4
2
0
VOUT
–4.096V
TO 4.096V
VS = ±15V
40 N8 (1 LOT)
144 S8 (2 LOTS)
184 TOTAL PARTS
1 –0.9 –0.8 –0.7 –0.6 –0.5 –0.4 –0.3 –0.2 –0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
INPUT OFFSET VOLTAGE DRIFT (μV/°C)
18812 TA01b
–5V
18812 TA01a
18812fb
1
LT1881/LT1882
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltage (V + to V –) .........................................40V
Differential Input Voltage (Note 2)...........................±10V
Input Voltage..................................................... V + to V –
Input Current (Note 2)..........................................±10mA
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 4)
LT1881C/LT1882C ................................–40°C to 85°C
LT1881I/LT1882I ..................................–40°C to 85°C
LT1882H ............................................–40°C to 125°C
LT1882MP..........................................–55°C to 125°C
Specified Temperature Range (Note 5)
LT1881C/LT1882C ................................–40°C to 85°C
LT1881I/LT1882I ..................................–40°C to 85°C
LT1882H ............................................–40°C to 125°C
LT1882MP..........................................–55°C to 125°C
Maximum Junction Temperature........................... 150°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
PIN CONFIGURATION
TOP VIEW
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
A
B
14 OUT D
OUT A 1
8
V+
–IN A 2
7
OUT B
+IN A 3
6
5
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
8-LEAD PLASTIC SO
D
+IN B 5
+IN B
13 –IN D
12 +IN D
V+ 4
–IN B
V– 4
A
11 V –
B
C
10 +IN C
–IN B 6
9
–IN C
OUT B 7
8
OUT C
TJMAX = 150°C, θJA = 130°C/W (N8)
TJMAX = 150°C, θJA = 190°C/W (S8)
S PACKAGE
14-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 160°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
SPECIFIED TEMPERATURE RANGE
LT1881CN8#PBF
LT1881CN8#TRPBF
LT1881CN8
8-Lead PDIP
0°C to 70°C
LT1881IN8#PBF
LT1881IN8#TRPBF
LT1881IN8
8-Lead PDIP
–40°C to 85°C
LT1881CS8#PBF
LT1881CS8#TRPBF
1881
8-Lead Plastic SO
0°C to 70°C
LT1881IS8#PBF
LT1881IS8#TRPBF
1881I
8-Lead Plastic SO
–40°C to 85°C
LT1881ACN8#PBF
LT1881ACN8#TRPBF
LT1881ACN8
8-Lead PDIP
0°C to 70°C
LT1881AIN8#PBF
LT1881AIN8#TRPBF
LT1881AIN8
8-Lead PDIP
–40°C to 85°C
LT1881ACS8#PBF
LT1881ACS8#TRPBF
1881A
8-Lead Plastic SO
0°C to 70°C
LT1881AIS8#PBF
LT1881AIS8#TRPBF
1881AI
8-Lead Plastic SO
–40°C to 85°C
LT1882CS#PBF
LT1882CS#TRPBF
LT1882CS
14-Lead Plastic SO
0°C to 70°C
LT1882IS#PBF
LT1882IS#TRPBF
LT1882IS
14-Lead Plastic SO
–40°C to 85°C
LT1882HS#PBF
LT1882HS#TRPBF
LT1882HS
14-Lead Plastic SO
–40°C to 125°C
LT1882MPS#PBF
LT1882MPS#TRPBF
LT1882MPS
14-Lead Plastic SO
–55°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
2
18812fb
LT1881/LT1882
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Single supply operation VS = 5V, 0V; VCM = VS/2 unless otherwise noted.
(Note 5)
C/I Grades
SYMBOL PARAMETER
VOS
CONDITIONS
MIN
Input Offset Voltage (LT1881A)
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
Input Offset Voltage (LT1881/LT1882)
ΔVOS /ΔT Input Offset Voltage Drift
(Note 6)
ΔVOS /
ΔTIME
Long-Term Input Offset
Voltage Stability
IOS
Input Offset Current (LT1881A)
MAX
25
50
85
110
30
80
125
150
0.3
0.3
MIN
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l
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
MAX
30
80
300
300
μV
μV
μV
μV
μV
0.8
0.8
μV/°C
μV/°C
μV/°C
μV/°C
0.8
0.8
0.3
100
200
250
300
150
500
600
700
μV/month
pA
pA
pA
150
500
2000
2000
Input Bias Current (LT1881A)
Input Bias Current (LT1881/LT1882)
100
200
250
300
150
500
600
700
UNITS
μV
μV
μV
0.3
0°C < TA < 70°C
– 40°C < TA < 85°C
TYP
0.3
0.3
Input Offset Current (LT1881/LT1882)
IB
H/MP Grades
TYP
pA
pA
pA
pA
pA
pA
pA
pA
150
500
3000
3000
pA
pA
pA
pA
pA
Input Noise Voltage
0.1Hz to 10Hz
0.5
0.5
μVP-P
en
Input Noise Voltage Density
f = 1kHz
14
14
nV/√Hz
in
Input Noise Current Density
f = 1kHz
RIN
Input Resistance
Differential Mode
Common Mode
0.03
0.03
pA/√Hz
l
l
20
100
20
100
MΩ
GΩ
2
CIN
Input Capacitance
l
VCM
Input Voltage Range
V – + 1.0
l V – + 1.2
CMRR
Common Mode Rejection Ratio
PSRR
Power Supply Rejection Ratio
Minimum Operating Supply Voltage
1V < VCM < 4V
1.2V < VCM < 3.8V
l
V – = 0V, VCM = 1.5V
0°C < TA < 85°C, 2.7V < V+ < 32V l
0°C < TA < 125°C, 2.7V < V+ < 32V l
TA = –40°C, 3V < V+ < 32V
TA = –55°C, 3V < V+ < 32V
l
106
104
2
V+ – 1.0 V – + 1.0
V+ – 1.2 V – + 1.2
128
106
102
pF
V+ – 1.0
V+ – 1.2
128
dB
dB
dB
dB
dB
dB
106
106
106
106
2.4
2.7
V
V
2.4
2.7
V
18812fb
3
LT1881/LT1882
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Single supply operation VS = 5V, 0V; VCM = VS/2 unless otherwise noted.
(Note 5)
C/I Grades
SYMBOL PARAMETER
AVOL
Large-Signal Voltage Gain
CONDITIONS
RL = 10k; 1V < VOUT < 4V
RL = 2k; 1V < VOUT < 4V
RL = 1k; 1V < VOUT < 4V
MIN
TYP
l
500
350
l
l
H/MP Grades
MAX
MIN
TYP
MAX
UNITS
1600
500
300
1600
V/mV
V/mV
300
250
800
300
200
800
V/mV
V/mV
250
200
400
250
150
400
V/mV
V/mV
VOL
Output Voltage Swing Low
No Load
ISINK = 100μA
ISINK = 1mA
ISINK = 5mA
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l
l
l
20
25
70
270
40
50
150
600
20
25
70
270
50
60
200
750
mV
mV
mV
mV
VOH
Output Voltage Swing High
(Referred to V +)
No Load
ISINK = 100μA
ISINK = 1mA
ISINK = 5mA
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l
l
l
120
130
180
360
220
230
300
600
120
130
180
360
300
325
450
800
mV
mV
mV
mV
IS
Supply Current Per Amplifier
VS = 3V, 0V
0.45
0.65
0.85
1.2
0.45
0.65
0.85
1.5
mA
mA
0.5
0.65
0.9
1.4
0.5
0.65
0.9
1.7
mA
mA
0.5
0.70
1.0
1.5
0.5
0.70
1.0
1.8
mA
mA
15
15
30
30
10
10
30
30
mA
mA
0.35
1.0
0.35
1.0
MHz
VS = 5V, 0V
VS = 12V, 0V
ISC
Short-Circuit Current
VOUT Short to GND
VOUT Short to V +
GBW
Gain Bandwidth Product
f = 20kHz
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l
Channel Separation
f = 1kHz
120
120
dB
tS
Settling Time
0.01%, VOUT = 1.5V to 3.5V,
AV = –1, RL = 2k
30
30
μs
SR +
Slew Rate Positive
AV = –1
SR –
FPBW
ΔVOS
ΔIB+
0.15
0.12
0.35
0.15
0.1
0.35
l
V/μs
V/μs
0.11
0.08
0.18
0.11
0.06
0.18
l
V/μs
V/μs
VOUT = 4VP-P
(Note 10)
8.75
6.35
14
8.75
4.75
14
l
kHz
kHz
Offset Voltage Match
(LT1881A)
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
Offset Voltage Match
(LT1881/LT1882)
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
Offset Voltage Match Drift
(Notes 6, 7)
l
Noninverting Bias Current Match
(LT1881A)
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
Slew Rate Negative
Full-Power Bandwidth
AV = –1
30
70
125
160
35
125
175
235
0.4
1.2
200
300
400
500
μV
μV
μV
35
0.4
125
385
385
μV
μV
μV
μV
μV
1.2
μV/°C
pA
pA
pA
18812fb
4
LT1881/LT1882
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Single supply operation VS = 5V, 0V; VCM = VS/2 unless otherwise noted.
(Note 5)
C/I Grades
SYMBOL PARAMETER
CONDITIONS
ΔIB+
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
l
Noninverting Bias Current Match
(LT1881/LT1882)
MIN
ΔCMRR
Common Mode Rejection Ratio
Match
(Notes 7, 9)
ΔPSRR
Power Supply Rejection Match
(Notes 7, 9)
V – = 0V, VCM = 1.5V
0°C < TA < 85°C, 2.7V < V+ < 32V l
0°C < TA < 125°C, 2.7V < V+ < 32V l
TA = –40°C, 3V < V+ < 32V
TA = –55°C, 3V < V+ < 32V
H/MP Grades
TYP
MAX
250
700
900
1000
MIN
TYP
MAX
UNITS
250
700
pA
pA
pA
pA
pA
2000
2000
102
125
104
126
104
100
125
102
126
102
126
dB
dB
dB
dB
dB
126
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.
Split supply operation VS = ±15V, VCM = 0V unless otherwise noted. (Note 5)
C/I Grades
SYMBOL
PARAMETER
VOS
Input Offset Voltage
(LT1881A)
Input Offset Voltage
(LT1881/LT1882)
ΔVOS /ΔT
Input Offset Voltage Drift
(Note 6)
ΔVOS /
ΔTIME
Long-Term Input Offset
Voltage Stability
IOS
Input Offset Current (LT1881A)
Input Offset Current
(LT1881/LT1882)
IB
CONDITIONS
MIN
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
TYP
MAX
25
50
85
110
30
80
125
150
0.3
0.3
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
MIN
TYP
MAX
30
0.3
0.3
80
300
300
μV
μV
μV
μV
μV
0.8
0.8
μV/°C
μV/°C
μV/°C
μV/°C
0.3
100
200
250
300
150
500
600
700
μV/month
pA
pA
pA
150
500
2000
2000
100
200
250
300
150
500
600
700
UNITS
μV
μV
μV
0.8
0.8
0.3
Input Bias Current (LT1881A)
Input Bias Current
(LT1881/LT1882)
H/MP Grades
pA
pA
pA
pA
pA
pA
pA
pA
150
500
3000
3000
pA
pA
pA
pA
pA
18812fb
5
LT1881/LT1882
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Split supply operation VS = ±15V, VCM = 0V unless otherwise noted.
(Note 5)
C/I Grades
SYMBOL
PARAMETER
CONDITIONS
Input Noise Voltage
0.1Hz to 10Hz
0.5
0.5
μVP-P
en
Input Noise Voltage Density
f = 1kHz
14
14
nV/√Hz
in
Input Noise Current Density
f = 1kHz
Differential Mode
Common Mode
MIN
TYP
H/MP Grades
MAX
MIN
TYP
MAX
UNITS
0.03
0.03
pA/√Hz
l
l
20
100
20
100
MΩ
GΩ
2
RIN
Input Resistance
CIN
Input Capacitance
l
VCM
Input Voltage Range
V – + 1.0
l V – + 1.2
CMRR
Common Mode Rejection Ratio
–13.5V < VCM < 13.5V
l
114
130
110
130
dB
+PSRR
Positive Power Supply
Rejection Ratio
V – = –15V, VCM = 0V;
1.5V < V + < 18V
l
110
132
108
132
dB
–PSRR
Negative Power Supply
Rejection Ratio
V + = 15V, VCM = 0V;
–1.5V < V – < –18V
l
106
132
104
132
dB
l
Minimum Operating
Supply Voltage
AVOL
Large-Signal Voltage Gain
RL = 10k; –13.5V < VOUT < 13.5V
RL = 2k; –13.5V < VOUT < 4V
RL = 1k; 1V < VOUT < 4V
2
V + – 1.0 V – + 1.0
V + – 1.2 V – + 1.2
±1.2
±1.35
pF
V + – 1.0
V + – 1.2
±1.2
±1.35
V
V
V
1000
700
1600
1000
500
1600
l
V/mV
V/mV
175
125
420
175
110
420
l
V/mV
V/mV
90
65
230
90
7
230
l
V/mV
V/mV
VOL
Output Voltage Swing Low
(Referred to VEE)
No Load
ISINK = 100μA
ISINK = 1mA
ISINK = 5mA
l
l
l
l
20
25
70
270
40
50
150
600
20
25
70
270
50
60
200
750
mV
mV
mV
mV
VOH
Output Voltage Swing High
(Referred to VCC)
No Load
ISOURCE = 100μA
ISOURCE = 1mA
ISOURCE = 5mA
l
l
l
l
120
130
180
360
220
230
300
600
120
130
180
360
300
325
450
800
mV
mV
mV
mV
IS
Supply Current Per Amplifier
VS = ±15V
0.5
0.85
1.1
1.6
0.5
0.85
1.1
2.0
mA
mA
ISC
Short-Circuit Current
l
20
15
40
40
20
10
40
40
mA
mA
l
20
15
30
30
20
10
30
30
mA
mA
0.4
0.85
0.4
0.85
MHz
VOUT Short to V –
VOUT Short to V +
GBW
l
Gain Bandwidth Product
f = 20kHz
Channel Separation
f = 1kHz
120
120
dB
tS
Settling Time
0.01%, VOUT = – 5V to 5V,
AV = –1, RL = 2k
30
30
μs
SR +
Slew Rate Positive
AV = –1
SR –
Slew Rate Negative
AV = –1
0.21
0.18
0.4
0.21
0.15
0.4
l
V/μs
V/μs
0.13
0.1
0.20
0.11
0.07
0.20
l
V/μs
V/μs
18812fb
6
LT1881/LT1882
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. Split supply operation VS = ±15V, VCM = 0V unless otherwise noted.
(Note 5)
C/I Grades
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
FPBW
Full-Power Bandwidth
VOUT = 28VP-P
(Note 10)
2.25
l
1.47
1.13
Offset Voltage Match
(LT1881A)
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
Offset Voltage Match
(LT1881/LT1882)
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
Offset Voltage Match Drift
(Notes 6, 7)
l
ΔIB+
Noninverting Bias Current Match
(LT1881A)
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
l
l
ΔIB+
Noninverting Bias Current Match
(LT1881/LT1882)
(Note 7)
0°C < TA < 70°C
– 40°C < TA < 85°C
– 40°C < TA < 125°C
– 55°C < TA < 125°C
l
l
l
l
ΔVOS
H/MP Grades
MAX
35
70
125
160
42
125
175
235
0.4
1.1
200
300
400
500
250
700
900
1000
MIN
TYP
1.47
0.79
2.25
MAX
UNITS
kHz
kHz
μV
μV
μV
42
0.4
125
435
435
μV
μV
μV
μV
μV
1.1
μV/°C
pA
pA
pA
250
700
2000
2000
pA
pA
pA
pA
pA
ΔCMRR
Common Mode Rejection Match
(Notes 7, 9)
l
110
125
106
125
dB
Δ+PSRR
Positive Power Supply
Rejection Ratio Match
V – = – 15V, VCM = 0V,
1.5V < V + < 18V, (Notes 7, 9)
l
108
130
108
130
dB
Δ–PSRR
Negative Power Supply
Rejection Ratio Match
V+ = 15V, VCM = 0V,
– 1.5V < V – < – 18V, (Notes 7, 9)
l
104
130
104
130
dB
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: The inputs are protected by internal resistors and back-to-back
diodes. If the differential input voltage exceeds ±0.7V, the input current
should be limited externally to less than 10mA.
Note 3: A heat sink may be required to keep the junction temperature
below absolute maximum.
Note 4: The LT1881C/LT1882C and LT1881I/LT1882I are guaranteed
functional over the operating temperature range of – 40°C to 85°C.
The LT1882H is guaranteed functional over the operating temperature
range –40°C to 125°C. The LT1882MP is guaranteed functional over the
operating temperature range –55°C to 125°C.
Note 5: The LT1881C/LT1882C are guaranteed to meet specified
performance from 0°C to 70°C. The LT1881C/LT1882C are designed,
characterized and expected to meet specified performance from – 40°C
to 85°C but are not tested or QA sampled at these temperatures. The
LT1881I/LT1882I are guaranteed to meet specified performance from
– 40°C to 85°C. The LT1882H is guaranteed to meet specified performance
from –40°C to 125°C. The LT1882MP is guaranteed to meet specified
performance from –55°C to 125°C.
Note 6: This parameter is not 100% tested.
Note 7: Matching parameters are the difference between amplifiers
A and B in the LT1881; and between amplifiers A and D and B and C in the
LT1882.
Note 8: This parameter is the difference between the two noninverting
input bias currents.
Note 9: ΔCMRR and ΔPSRR are defined as follows: CMRR and PSRR are
measured in μV/V on each amplifier. The difference is calculated in μV/V
and then converted to dB.
Note 10: Full power bandwidth is calculated from the slew rate: FPBW =
SR/2πVP.
18812fb
7
LT1881/LT1882
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current per Amplifier
vs Supply Voltage
Slew Rate vs Supply Voltage
AV = –1
AV = –1
RISING
25°C
600
–55°C
400
SLEW RATE (V/μs)
800
VS = ±15V
RISING
0.4
0.35
SLEW RATE (V/μs)
SUPPLY CURRENT PER AMPLIFIER (μA)
0.5
0.40
125°C
1000
0.30
0.25
FALLING
0.20
0.15
0.10
VS = ±5V
0.3
VS = ±15V
FALLING
VS = ±5V
0.2
0.1
200
0.05
0
0
4
8 12 16 20 24 28
TOTAL SUPPLY VOLTAGE (V)
32
0
36
0
4
8 12 16 20 24 28 32
TOTAL SUPPLY VOLTAGE (V)
Settling Time vs Output Step
900
VS = ±15V
AV = 1
8
6
0.1%
0.01%
OUTPUT STEP (V)
4
2
0
–2
–4
0.1%
0.01%
4
0.01%
2
0
–2
0.1%
0.01%
–4
–6
–6
–8
–8
–10
0 5 10 15 20 25 30 35 40 45 50 55 60 65
SETTLING TIME (μs)
0.1%
GAIN BANDWIDTH PRODUCT (kHz)
6
25 50 75 100 125 150
TEMPERATURE (°C)
Gain Bandwidth Product
vs Supply Voltage
10
VS = ±15V
AV = –1
8
0
18812 G03
Settling Time vs Output Step
10
–10
0
–50 –25
36
18812 G02
18812 G01
OUTPUT STEP (V)
Slew Rate vs Temperature
0.45
1200
125°C
800
25°C
750
–55°C
700
650
600
0 5 10 15 20 25 30 35 40 45 50 55 60 65
SETTLING TIME (μs)
18812 G04
850
0
4
8 12 16 20 24 28 32
TOTAL SUPPLY VOLTAGE (V)
18812 G06
18812 G05
Phase Margin vs Supply Voltage
Gain vs Frequency, AV = –1
60
36
Gain vs Frequency, AV = 1
10
10
0
0
–10
–10
–55°C
125°C
54
125°C
52
GAIN (dB)
56
GAIN (dB)
PHASE MARGIN (DEG)
58
–20
VS = ±2.5V
50
VS = ±2.5V
VS = ±15V
–20
VS = ±15V
–30
–30
48
46
0
4
8 12 16 20 24 28 32
TOTAL SUPPLY VOLTAGE (V)
36
18812 G07
–40
1k
10k
100k
1M
FREQUENCY (Hz)
10M
100M
18812 G08
–40
1k
10k
100k
1M
FREQUENCY (Hz)
10M
100M
18812 G09
18812fb
8
LT1881/LT1882
TYPICAL PERFORMANCE CHARACTERISTICS
Gain vs Frequency with CLOAD,
AV = –1
Gain vs Frequency with CLOAD,
AV = 1
10
10
VS = ±15V
VS = ±15V
0
0
1500pF
1800pF
–10
GAIN (dB)
GAIN (dB)
1000pF
500pF
–20
–10
1000pF
–20
500pF
0pF
–30
–40
–30
1k
10k
100k
1M
FREQUENCY (Hz)
10M
100M
–40
0pF
1k
10k
100k
1M
FREQUENCY (Hz)
18812 G10
TIME (50μs/DIV)
18812 G12
18812 G13
TIME (2μs/DIV)
Small Signal Response, AV = 1,
RL = 2k
18812 G15
18812 G14
Small Signal Response, AV = 1,
CL = 500pF
VOUT (20mV/DIV)
VOUT (20mV/DIV)
VOUT (20mV/DIV)
Small Signal Response, AV = –1,
CL = 1000pF
TIME (2μs/DIV)
Small Signal Response, AV = –1,
No Load
Large Signal Response, AV = 1
VOUT (20mV/DIV)
VOUT (5V/DIV)
TIME (50μs/DIV)
100M
18812 G11
VOUT (5V/DIV)
Large Signal Response, AV = –1
10M
TIME (2μs/DIV)
18812 G16
TIME (2μs/DIV)
18812 G17
18812fb
9
LT1881/LT1882
TYPICAL PERFORMANCE CHARACTERISTICS
VOS Distribution, TA = 25°C
Voltage Offset vs Temperature
200
VS = ±15V
VS = ±15V
0
OFFSET VOLTAGE DRIFT (μV)
40 N8 (1 LOT)
144 S8 (2 LOTS)
184 TOTAL PARTS
100
50
0
–50
–100
–60
0
20
40
–40 –20
OUTPUT OFFSET VOLTAGE (μV)
–200
–55 –35 –15
60
1400
200
0
200
400
V+ – 0
VS = ±15V
1000
800
600
400
–IBIAS
200
+IBIAS
600
0
800
10
15
–200
–55 –35 –15
20
VCM (V)
V – + 0.8
V – + 0.6
V – + 0.4
VS = ±5V
$VOS