LTC2050HS5#TRPBF [Linear]
LTC2050 - Zero-Drift Operational Amplifiers in SOT-23; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C;
| 型号： | LTC2050HS5#TRPBF |
| 厂家： | 
Linear |
| 描述： | LTC2050 - Zero-Drift Operational Amplifiers in SOT-23; Package: SOT; Pins: 5; Temperature Range: -40°C to 125°C 放大器 斩波器 光电二极管 |
| 文件： | 总18页 (文件大小：759K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LTC2050/LTC2050HV
Zero-Drift Operational Amplifiers in SOT-23
FEATURES
DESCRIPTION
n
Maximum Offset Voltage of 3µV
The LTC®2050 and LTC2050HV are zero-drift operational
amplifiers available in the 5- or 6-lead SOT-23 and SO-8
packages. The LTC2050 operates from a single 2.7V to
6V supply. The LTC2050HV operates on supplies from
2.7V to 5.5V. The current consumption is 800µA and
the versions in the 6-lead SOT-23 and SO-8 packages
offer power shutdown (active low). The LTC2050HVMP
offer operating range from 4.5V to 5.5V and operating
temperature range of – 55°C to 150°C.
n
n
n
n
n
n
n
Maximum Offset Voltage Drift of 30nV/°C
Noise: 1.5µV (0.01Hz to 10Hz Typ)
P-P
Voltage Gain: 140dB (Typ)
PSRR: 130dB (Typ)
CMRR: 130dB (Typ)
Supply Current: 0.8mA (Typ)
Supply Operation
n
LTC2050: 2.7V to 6V
n
LTC2050HV: 2.7V to 5.5V
The LTC2050, despite its miniature size, features uncom-
promising DC performance. The typical input offset volt-
age and offset drift are 0.5µV and 10nV/°C. The almost
zero DC offset and drift are supported with a power sup-
ply rejection ratio (PSRR) and common mode rejection
ratio (CMRR) of more than 130dB.
n
LTC2050HVMP: 4.5V to 5.5V
n
n
n
n
Extended Common Mode Input Range
Output Swings Rail-to-Rail
Input Overload Recovery Time: 2ms (Typ)
Operating Temperature Range
n
LTC2050: –40°C to 125°C
LTC2050HVMP: –55°C to 150°C
n
The input common mode voltage ranges from the nega-
tive supply up to typically 1V from the positive supply.
The LTC2050 also has an enhanced output stage capable
of driving loads as low as 2kΩ to both supply rails. The
open-loop gain is typically 140dB. The LTC2050 also
n
Low Profile (1mm) SOT-23 (ThinSOT™) Package
APPLICATIONS
n
Thermocouple Amplifiers
features a 1.5µV DC to 10Hz noise and a 3MHz gain
P-P
n
Electronic Scales
bandwidth product.
n
Medical Instrumentation
Strain Gauge Amplifiers
All registered trademarks and trademarks are the property of their respective owners. Protected
by U.S. patents, including 5481178.
n
n
High Resolution Data Acquisition
n
DC Accurate RC Active Filters
n
Low Side Current Sense
TYPICAL APPLICATION
Differential Bridge Amplifier
Input Referred Noise 0.1Hz to 10Hz
ꢀ
5V
5V
50Ω
GAIN
TRIM
0.1µF
18.2k
0.1µF
ꢁ
ꢂ
350Ω
STRAIN
GAUGE
5
4
–
1
A
V
= 100
LTC2050HV
ꢃꢁ
ꢃꢀ
3
+
2
0.1µF
18.2k
ꢂ
ꢀ
ꢈ
ꢊ
ꢉ
ꢁꢂ
2050 TA01a
ꢋꢌꢍE ꢄꢎEꢏꢇ
ꢀꢂꢐꢂ ꢋꢑꢂꢁꢒ
–5V
Rev. E
1
Document Feedback
For more information www.analog.com
LTC2050/LTC2050HV
ABSOLUTE MAXIMUM RATINGS
(Note 1)
+
–
Total Supply Voltage (V to V )
Operating Temperature Range
LTC2050 .................................................................7V
LTC2050HV...........................................................12V
Input Voltage ........................(V + 0.3V) to (V – 0.3V)
Output Short-Circuit Duration ......................... Indefinite
LTC2050 ............................................–40°C to 125°C
LTC2050HVMP ..................................–55°C to 150°C
Specified Temperature Range
(Note 3)..................................................–55°C to 150°C
Storage Temperature Range ..................–65°C to 150°C
Lead Temperature (Soldering, 10 sec)...................300°C
+
–
PIN CONFIGURATION
ꢈꢉꢊ ꢋꢌEꢍ
ꢂꢀꢇ ꢄꢈEꢉ
ꢂꢀꢎ ꢄꢈEꢏ
ꢜ
SHDN
ꢒꢌꢎ
ꢀ
ꢁ
ꢂ
ꢃ
ꢄ
ꢅ
ꢆ
ꢇ
ꢎꢏ
ꢀꢁꢂ ꢃ
ꢅ
ꢋ ꢄ
ꢇ
ꢀꢁꢂ ꢃ
ꢅ
ꢋ ꢄ
ꢐ
ꢄ
ꢆ
ꢋ
ꢄ
ꢆ
ꢌ SHDN
ꢜꢈꢝ ꢓ
ꢞ ꢅꢈꢝ
ꢐꢌꢎ
ꢉꢑꢈ
ꢎꢏ
ꢇꢈꢉ ꢊ
ꢍ ꢅꢈꢉ
ꢒ
ꢋ
ꢊꢋ ꢇꢌꢍꢎꢌꢏE
ꢋꢐꢑEꢌꢒ ꢇꢑꢌꢊꢂꢈꢍ ꢂꢊꢀꢂꢐꢆꢓ
ꢗ ꢃꢋꢘꢙꢍꢚ θ ꢗ ꢆꢋꢘꢙꢍꢛꢉ
ꢐꢋ ꢎꢑꢒꢓꢑꢔE
ꢋꢕꢖEꢑꢗ ꢎꢖꢑꢐꢂꢈꢒ ꢂꢐꢀꢂꢕꢆꢊ
ꢓꢄ ꢊꢔꢏꢕꢔꢖE
ꢄꢗꢘEꢔꢙ ꢊꢘꢔꢓꢈꢌꢏ ꢓꢉ
ꢂ
ꢔꢕꢌꢖ
ꢔꢌ
ORDER INFORMATION
LEAD FREE FINISH
LTC2050CS5#PBF
LTC2050IS5#PBF
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
8-Lead Plastic SO
SPECIFIED TEMPERATURE RANGE
0°C to 70°C
LTC2050CS5#TRPBF
LTC2050IS5#TRPBF
LTC2050HS5#TRPBF
LTC2050HVCS5#TRPBF
LTC2050HVIS5#TRPBF
LTC2050HVHS5#TRPBF
LTC2050CS6#TRPBF
LTC2050IS6#TRPBF
LTC2050HS6#TRPBF
LTC2050HVMPS6#TRPBF
LTC2050HVCS6#TRPBF
LTC2050HVIS6#TRPBF
LTC2050HVHS6#TRPBF
LTC2050CS8#TRPBF
LTC2050IS8#TRPBF
LTC2050HVCS8#TRPBF
LTAEG
LTAEG
LTAEG
LTAEH
LTAEH
LTAEH
LTAEJ
LTAEJ
LTAEJ
LTHGP
LTAEK
LTAEK
LTAEK
2050
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
LTC2050HS5#PBF
LTC2050HVCS5#PBF
LTC2050HVIS5#PBF
LTC2050HVHS5#PBF
LTC2050CS6#PBF
LTC2050IS6#PBF
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
–40°C to 85°C
–40°C to 125°C
–55°C to 150°C
0°C to 70°C
LTC2050HS6#PBF
LTC2050HVMPS6#PBF
LTC2050HVCS6#PBF
LTC2050HVIS6#PBF
LTC2050HVHS6#PBF
LTC2050CS8#PBF
LTC2050IS8#PBF
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
2050I
2050HV
8-Lead Plastic SO
–40°C to 85°C
0°C to 70°C
LTC2050HVCS8#PBF
8-Lead Plastic SO
Rev. E
2
For more information www.analog.com
LTC2050/LTC2050HV
ORDER INFORMATION
LEAD FREE FINISH
LTC2050HVIS8#PBF
LTC2050CS5
TAPE AND REEL
PART MARKING*
050HVI
LTAEG
PACKAGE DESCRIPTION
SPECIFIED TEMPERATURE RANGE
–40°C to 85°C
0°C to 70°C
LTC2050HVIS8#TRPBF
LTC2050CS5#TR
LTC2050IS5#TR
8-Lead Plastic SO
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
6-Lead Plastic TSOT-23
8-Lead Plastic SO
LTC2050IS5
LTAEG
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
LTC2050HS5
LTC2050HS5#TR
LTC2050HVCS5#TR
LTC2050HVIS5#TR
LTC2050HVHS5#TR
LTC2050CS6#TR
LTC2050IS6#TR
LTAEG
LTC2050HVCS5
LTC2050HVIS5
LTC2050HVHS5
LTC2050CS6
LTAEH
LTAEH
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
LTAEH
LTAEJ
LTC2050IS6
LTAEJ
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
LTC2050HS6
LTC2050HS6#TR
LTC2050HVCS6#TR
LTC2050HVIS6#TR
LTC2050HVHS6#TR
LTC2050CS8#TR
LTC2050IS8#TR
LTAEJ
LTC2050HVCS6
LTC2050HVIS6
LTC2050HVHS6
LTC2050CS8
LTAEK
LTAEK
–40°C to 85°C
–40°C to 125°C
0°C to 70°C
LTAEK
2050
LTC2050IS8
2050I
8-Lead Plastic SO
–40°C to 85°C
0°C to 70°C
LTC2050HVCS8
LTC2050HVIS8
LTC2050HVCS8#TR
LTC2050HVIS8#TR
2050HV
050HVI
8-Lead Plastic SO
8-Lead Plastic SO
–40°C to 85°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
Rev. E
3
For more information www.analog.com
LTC2050/LTC2050HV
ELECTRICAL CHARACTERISTICS (LTC2050/LTC2050HV) The l denotes the specifications which apply over
the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V unless otherwise noted. (Note 3)
C, I SUFFIXES
H SUFFIX
TYP
PARAMETER
CONDITIONS
(Note 2)
MIN
TYP
MAX
3
MIN
MAX
3
UNITS
µV
Input Offset Voltage
Average Input Offset Drift
Long-Term Offset Drift
Input Bias Current
0.5
0.5
l
(Note 2)
0.03
0.05
µV/°C
nV/√mo
50
20
50
20
LTC2050
75
300
75
4000
pA
pA
l
l
l
l
LTC2050HV
LTC2050
1
50
100
1
50
4000
pA
pA
Input Offset Current
150
200
150
1000
pA
pA
LTC2050HV
100
150
100
1000
pA
pA
Input Noise Voltage
R = 100Ω, 0.01Hz to 10Hz
S
1.5
1.7
1.5
1.7
µV
P-P
Input Capacitance
pF
Common Mode Rejection Ratio
LTC2050/LTC2050HV
+
V
V
= GND to (V – 1.3)
115
110
130
130
115
110
130
130
dB
dB
CM
CM
+
l
l
l
= GND to (V – 1.3)
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing High
Output Voltage Swing Low
V = 2.7V to 6V
S
120
115
130
130
120
115
130
130
dB
dB
R = 10k
L
120
115
140
140
120
115
140
140
dB
dB
l
l
R = 2k to GND
2.85
2.95
2.94
2.98
2.85
2.95
2.94
2.98
V
V
L
R = 10k to GND
L
l
l
R = 2k to GND
1
1
10
10
1
1
10
10
mV
mV
L
R = 10k to GND
L
Slew Rate
2
3
2
3
V/µs
MHz
Gain Bandwidth Product
Supply Current
l
l
V
V
= V , No Load
0.75
1.1
10
0.75
1.2
10
mA
µA
SHDN
SHDN
IH
= V
IL
–
–
l
l
l
Shutdown Pin Input Low Voltage (V )
V + 0.5
V + 0.5
V
V
IL
+
+
Shutdown Pin Input High Voltage (V )
V – 0.5
V – 0.5
IH
Shutdown Pin Input Current
Internal Sampling Frequency
V
= GND
–0.5
7.5
–3
–0.5
7.5
–3
µA
kHz
SHDN
Rev. E
4
For more information www.analog.com
LTC2050/LTC2050HV
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (LTC2050/LTC2050HV) VS = 5V unless otherwise noted. (Note 3)
C, I SUFFIXES
H, MP SUFFIX
PARAMETER
CONDITIONS
MIN
TYP
MAX
3
MIN
TYP
MAX
UNITS
Input Offset Voltage
Average Input Offset Drift
(Note 2)
0.5
0.5
3
µV
l
l
(Note 2)
LTC2050HVMP
0.03
0.05
0.10
µV/°C
µV/°C
Long-Term Offset Drift
Input Bias Current
50
75
50
75
nV/√mo
LTC2050
150
300
150
pA
pA
l
l
l
l
4000
LTC2050HV
LTC2050HVMP
LTC2050
7
50
150
7
7
50
4000
pA
pA
50
8000
pA
pA
Input Offset Current
300
400
300
1000
pA
pA
LTC2050HV
LTC2050HVMP
100
200
100
pA
pA
l
l
1000
2000
pA
Input Noise Voltage
R = 100Ω, 0.01Hz to 10Hz
S
1.5
1.5
µV
P-P
Common Mode Rejection Ratio
LTC2050/LTC2050HV
+
V
V
= GND to (V – 1.3)
120
115
130
130
120
110
130
130
dB
dB
CM
CM
+
l
l
l
l
l
= GND to (V – 1.3)
LTC2050HVMP
= GND to (V – 1.3)
+
V
CM
107
130
dB
Power Supply Rejection Ratio
V = 2.7V to 6V
S
120
115
130
130
120
115
130
130
dB
dB
LTC2050HVMP
117
112
130
130
dB
dB
V = 4.5V to 11V
S
Large-Signal Voltage Gain
Output Voltage Swing High
Output Voltage Swing Low
R = 10k
L
125
120
140
140
125
115
140
140
dB
dB
l
l
R = 2k to GND
4.85
4.95
4.94
4.98
4.85
4.95
4.94
4.98
V
V
L
R = 10k to GND
L
l
l
R = 2k to GND
1
1
10
10
1
1
10
10
mV
mV
L
R = 10k to GND
L
Slew Rate
2
3
2
3
V/µs
MHz
Gain Bandwidth Product
Supply Current
l
l
V
V
= V , No Load
0.8
1.2
15
0.8
1.3
15
mA
µA
SHDN
SHDN
IH
= V
IL
–
–
l
l
l
Shutdown Pin Input Low Voltage (V )
V + 0.5
V + 0.5
V
V
IL
+
+
Shutdown Pin Input High Voltage (V )
V – 0.5
V – 0.5
IH
Shutdown Pin Input Current
Internal Sampling Frequency
V
= GND
–0.5
7.5
–7
–0.5
7.5
–7
µA
kHz
SHDN
Rev. E
5
For more information www.analog.com
LTC2050/LTC2050HV
ELECTRICAL CHARACTERISTICS (LTC2050HV) The l denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. VS = 5V unless otherwise noted. (Note 3)
C, I SUFFIXES
H, MP SUFFIX
PARAMETER
CONDITIONS
MIN
TYP
MAX
3
MIN
TYP
MAX
UNITS
Input Offset Voltage
Average Input Offset Drift
(Note 2)
0.5
0.5
3
µV
l
l
(Note 2)
LTC2050HVMP
0.03
0.05
0.10
µV/°C
µV/°C
Long-Term Offset Drift
50
25
50
25
nV/√mo
Input Bias Current (Note 4)
LTC2050HV
125
300
125
pA
pA
l
l
4000
LTC2050HVMP
LTC2050HV
25
125
8000
pA
pA
Input Offset Current (Note 4)
250
500
250
1000
pA
pA
l
l
LTC2050HVMP
2000
pA
Input Noise Voltage
R = 100Ω, 0.01Hz to 10Hz
S
1.5
1.5
µV
P-P
Common Mode Rejection Ratio
LTC2050HV
–
+
+
V
V
= V to (V – 1.3)
120
115
130
130
120
115
130
130
dB
dB
CM
CM
–
l
l
l
l
l
= V to (V – 1.3)
LTC2050HVMP
–
+
V
CM
= V to (V – 1.3)
112
130
dB
Power Supply Rejection Ratio
V = 2.7V to 11V
S
120
115
130
130
120
115
130
130
dB
dB
LTC2050HVMP
117
112
130
130
dB
dB
V = 4.5 to 11V
S
Large-Signal Voltage Gain
R = 10k
L
125
120
140
140
125
120
140
140
dB
dB
l
l
Maximum Output Voltage Swing
R = 2k to GND
L
4.75
4.90
4.94
4.98
4.50
4.85
4.94
4.98
V
V
L
R = 10k to GND
Slew Rate
2
3
1
2
3
1
V/µs
MHz
Gain Bandwidth Product
Supply Current
l
l
V
V
= V , No Load
1.5
25
1.6
25
mA
µA
SHDN
SHDN
IH
= V
IL
–
–
l
l
l
Shutdown Pin Input Low Voltage (V )
V + 0.5
V + 0.5
V
V
IL
+
+
Shutdown Pin Input High Voltage (V )
V – 0.5
V – 0.5
IH
–
Shutdown Pin Input Current
Internal Sampling Frequency
V
= V
–3
–20
–3
–20
µA
kHz
SHDN
7.5
7.5
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.
The LTC2050C/LTC2050HVC are guaranteed to meet the temperature
limits of 0°C and 70°C. The LTC2050I/LTC2050HVI are guaranteed to meet
the temperature limits of –40°C and 85°C. The LTC2050H/LTC2050HVH
are guaranteed to meet the temperature limits of –40°C and 125°C. The
are guaranteed to meet the temperature limits of –55°C and 150°C.
Note 2: These parameters are guaranteed by design. Thermocouple effects
preclude measurements of these voltage levels during automated testing.
Note 3: All versions of the LTC2050 are designed, characterized and
expected to meet the extended temperature limits of –40°C and 125°C.
Note 4: The bias current measurement accuracy depends on the proximity
of the supply bypass capacitor to the device under test, especially at 5V
supplies. Because of testing limitations on the placement of this bypass
capacitor, the bias current at 5V supplies is guaranteed by design to meet
the data sheet limits, but tested to relaxed limits.
Rev. E
6
For more information www.analog.com
LTC2050/LTC2050HV
TYPICAL PERFORMANCE CHARACTERISTICS
Common Mode Rejection Ratio
vs Frequency
DC CMRR vs Common Mode
Input Voltage
PSRR vs Frequency
ꢑꢏꢋ
ꢑꢊꢋ
ꢋꢉꢆ
ꢋꢅꢆ
ꢊꢐꢋ
ꢖ
ꢖ
ꢘ ꢙꢖ ꢚR ꢓꢖ
ꢗ
ꢘ ꢋ.ꢓꢖ
ꢄꢌ
ꢛꢜꢛ
ꢊꢋꢋ
ꢙꢌꢍRR
ꢑꢋꢋ
ꢐꢋ
ꢕꢋ
ꢏꢋ
ꢊꢋ
ꢋ
ꢋꢆꢆ
ꢊꢆ
ꢏꢆ
ꢉꢆ
ꢅꢆ
ꢆ
ꢑꢋ
ꢚꢌꢍRR
ꢀ
ꢑ ꢍꢀ
ꢐ
ꢀ
ꢑ ꢌꢀ
ꢒꢋ
ꢓꢋ
ꢐꢋ
ꢋ
ꢐ
ꢒ
ꢑ ꢅꢍꢔꢁ
ꢓ
ꢑ
ꢑꢋ
ꢑꢋꢋ
ꢑꢒ
ꢑꢋꢒ
ꢑꢋꢋꢒ
ꢆ
ꢋ
ꢅ
ꢌ
ꢉ
ꢍ
ꢊꢋ
ꢊꢋꢋ
ꢊꢔ
ꢊꢋꢔ
ꢊꢋꢋꢔ
ꢊꢘ
ꢀREꢁꢂEꢃꢄꢅ ꢆꢇꢈꢉ
ꢀ
ꢃꢀꢄ
ꢀREꢁꢂEꢃꢄꢅ ꢆꢇꢈꢉ
ꢁꢂ
ꢊꢋꢓꢋ ꢔꢋꢑ
ꢅꢆꢍꢆ ꢎꢆꢅ
ꢐꢋꢕꢋ ꢖꢋꢗ
Output Voltage Swing vs
Load Resistance
Output Swing vs Load Resistance
5V Supply
Output Swing vs Output Current
5
4
6
5
4
3
2
1
0
ꢓ
R
L
TO GND
R
L
TO GND
ꢒ
ꢑ
ꢐ
3
V
= 5V
= 3V
ꢍ
ꢍ
ꢕ ꢒꢍ
ꢕ ꢐꢍ
S
ꢔ
ꢔ
2
1
0
V
S
–1
–2
–3
–4
–5
ꢌ
ꢋ
ꢊ
0
2
4
6
8
10
10
ꢊ.ꢊꢋ
ꢊ.ꢋ
ꢀꢁꢂꢃꢁꢂ ꢄꢁRREꢅꢂ ꢆꢇꢈꢉ
ꢋ
ꢋꢊ
0
2
4
6
8
LOAD RESISTANCE (kΩ)
LOAD RESISTANCE (kΩ)
2050 G06
ꢌꢊꢒꢊ ꢏꢊꢒ
2050 G04
Output Swing vs Output Current
5V Supply
Input Bias Current vs Temperature
(LTC2050)
Gain/Phase vs Frequency
ꢑ
ꢒ
80
ꢌꢍꢎ
ꢌꢎ
100
80
R
ꢗ
ꢂꢀ ꢏꢅꢘ
100
120
140
160
180
200
ꢓ
PHASE
60
ꢔ
ꢋ
40
ꢗ
ꢘ ꢋꢗ
ꢕ
GAIN
ꢊ
ꢌꢍꢍ
ꢌꢍ
ꢌ
20
ꢕꢋ
ꢕꢔ
ꢕꢓ
ꢕꢒ
ꢕꢑ
ꢗ
ꢕ
ꢘ ꢙꢗ
0
V
C
= 3V OR 5V
= 35pF
= 10kΩ
S
L
L
–20
–40
R
ꢊ.ꢊꢋ
ꢊ.ꢋ
ꢋ.ꢊ
ꢋꢊ
ꢉꢋꢍ
ꢋꢍ
ꢏꢋ ꢌꢍꢍ ꢌꢊꢋ
100
1k
10k
100k
1M
10M
ꢉꢊꢋ
ꢍ
ꢊꢋ
ꢀꢁꢂꢃꢁꢂ ꢄꢁRREꢅꢂ ꢆꢇꢈꢉ
ꢀEꢁꢂERꢃꢀꢄRE ꢅꢆꢇꢈ
FREQUENCY (Hz)
2050 G08
ꢔꢊꢑꢊ ꢏꢊꢖ
ꢊꢍꢋꢍ ꢐꢍꢑ
Rev. E
7
For more information www.analog.com
LTC2050/LTC2050HV
TYPICAL PERFORMANCE CHARACTERISTICS
Input Bias Current vs Temperature
(LTC2050HV)
Input Bias Current vs Temperature
(LTC2050HVMP)
ꢀꢁꢂ
ꢀꢁꢂ
ꢀꢁ
ꢀ
ꢀ
ꢀ ꢁꢂ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ ꢁꢂ
ꢀ
ꢁꢂ
ꢀ ꢁꢂ
ꢀ
ꢁꢂ
ꢀꢁ
ꢀꢁꢁ
ꢀꢁ
ꢀꢁꢁ
ꢀꢁ
ꢀ
ꢀ
ꢀꢁꢂ ꢀꢁꢂ
ꢀ
ꢀꢁ ꢀꢁ ꢀꢁ ꢀꢁꢁ ꢀꢁꢂ ꢀꢁꢂ
ꢀꢁꢂ
ꢀꢁꢂ
ꢀꢁ
ꢀꢀ
ꢀꢁ
ꢀꢁꢂ
ꢀEꢁꢂERꢃꢀꢄRE ꢅꢆꢇꢈ
ꢀEꢁꢂERꢃꢀꢄRE ꢅꢆꢇꢈ
ꢀꢁꢂꢁ ꢃꢄꢁ
ꢀꢁꢂꢁ ꢃꢄꢄ
Input Bias Current vs Input
Common Mode Voltage
(LTC2050HV)
Input Bias Current vs Input
Common Mode Voltage
ꢖꢘꢏ
ꢖꢗꢏ
ꢖꢕꢏ
ꢖꢏꢏ
ꢙꢏ
ꢒꢓ
ꢔꢓ
ꢕꢓ
ꢖꢓ
ꢗꢓ
ꢘꢓ
ꢓ
ꢉ
ꢚ ꢔꢉ
ꢑ
ꢉ
ꢚ
ꢔꢉ
ꢐ
ꢘꢏ
ꢉ
ꢚ ꢓꢉ
ꢑ
ꢉ
ꢚ ꢔꢉ
ꢐ
ꢗꢏ
ꢉ
ꢚ ꢖꢉ
ꢐ
ꢕꢏ
ꢏ
ꢙꢘꢓ
ꢖ
ꢕ
ꢗ
ꢏ
ꢔ
ꢓ
ꢙꢔ
ꢙꢘ
ꢘ
ꢖ
ꢔ
ꢙꢖ
ꢀꢁꢂꢃꢄ ꢅꢆꢇꢇꢆꢁ ꢇꢆꢈE ꢉꢆꢊꢄꢋꢌE ꢍꢉꢎ
ꢀꢁꢂꢃꢄ ꢅꢆꢇꢇꢆꢁ ꢇꢆꢈE ꢉꢆꢊꢄꢋꢌE ꢍꢉꢎ
ꢕꢏꢔꢏ ꢌꢖꢕ
ꢗꢓꢔꢓ ꢌꢘꢖ
Transient Response
Input Overload Recovery
ꢑ.ꢀ
ꢎꢊꢋꢉꢊꢋ ꢌꢇꢍ
ꢆꢈꢉꢊꢋ ꢌꢇꢍ
ꢁ
ꢁ
ꢇ.ꢈꢃꢄꢅꢆ
ꢏꢁ.ꢐ
ꢐꢁꢀꢁ ꢒꢑꢀ
ꢉꢇꢈꢇ ꢊꢀꢋ
ꢓ
ꢔ ꢏꢑꢁꢁ
ꢔ ꢑꢁꢁꢖ
ꢔ ꢑꢁꢘꢙ
ꢀꢁꢁꢂꢃꢄꢅꢆꢇ
ꢌ
ꢍ ꢀ
ꢀꢁꢂꢃꢄꢅꢆ
ꢇ
ꢕ
ꢕ
ꢚ
ꢆ
ꢎ
ꢎ
ꢓ
R
ꢗ
R
ꢐ
ꢍ ꢀꢇꢇꢏ
ꢍ ꢈꢇꢑꢒ
ꢍ ꢈꢆ
ꢇ
ꢔ ꢑ.ꢀꢇ
ꢆ
Rev. E
8
For more information www.analog.com
LTC2050/LTC2050HV
TYPICAL PERFORMANCE CHARACTERISTICS
Sampling Frequency
vs Supply Voltage
ꢜꢚ
Sampling Frequency
vs Temperature
ꢀꢁ
ꢀ
ꢇ
ꢟ ꢌꢍꢠꢓ
ꢈ
ꢞ
ꢝ
ꢘ
ꢗ
ꢍ
ꢀ
ꢀ
ꢀ ꢁꢂ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀꢁꢂ ꢀꢁꢂ
ꢀ
ꢀꢁ ꢀꢁ ꢀꢁ ꢀꢁꢁ ꢀꢁꢂ ꢀꢁꢂ
ꢍ.ꢚ
ꢌ.ꢍ ꢙ.ꢚ ꢙ.ꢍ ꢛ.ꢚ ꢛ.ꢍ
ꢀꢁꢂꢂꢃꢄ ꢅꢆꢃꢇꢈꢉE ꢊꢅꢋ
ꢍ.ꢍ
ꢗ.ꢚ
ꢀEꢁꢂERꢃꢀꢄRE ꢅꢆꢇꢈ
ꢀꢁꢂꢁ ꢃꢄꢅ
ꢌꢚꢍꢚ ꢉꢜꢗ
Supply Current vs Supply Voltage
Supply Current vs Temperature
ꢓ.ꢏ
ꢓ.ꢔ
ꢔ.ꢒ
ꢔ.ꢑ
ꢔ.ꢐ
ꢔ.ꢏ
ꢔ
ꢀ.ꢀ
ꢀ.ꢁ
ꢀ.ꢁ
ꢀ.ꢁ
ꢀ.ꢁ
ꢀ.ꢁ
ꢀ.ꢁ
ꢇ
ꢖ ꢏꢕꢗꢌ
ꢈ
ꢀ
ꢀ
ꢀ
ꢀ ꢁꢂ
ꢀ
ꢀ
ꢀ
ꢀ ꢁꢂ
ꢁꢂ
ꢀ
ꢏ
ꢐ
ꢑ
ꢒ
ꢓꢔ
ꢀꢁꢂ ꢀꢁꢂ ꢀꢁꢂ ꢀꢁ ꢀꢁ ꢀꢁ ꢀꢁ ꢀꢁ ꢀꢀꢁ ꢀꢁꢂ ꢀꢁꢂ
ꢀꢁꢂꢂꢃꢄ ꢅꢆꢃꢇꢈꢉE ꢊꢅꢋ
ꢀEꢁꢂERꢃꢀꢄRE ꢅꢆꢇꢈ
ꢏꢔꢕꢔ ꢉꢓꢒ
ꢀꢁꢂꢁ ꢃꢄꢅ
Rev. E
9
For more information www.analog.com
LTC2050/LTC2050HV
TEST CIRCUITS
Electrical Characteristics Test Circuit
100k
OUTPUT
+
V
10Ω
4
5
–
1
LTC2050
3
+
2
R
L
–
V
2050 TC01
DC−10Hz Noise Test Circuit
100k
475k
10Ω
4
0.01µF
–
158k
316k
475k
1
LTC2050
–
3
TO X-Y
RECORDER
0.1µF
0.01µF
+
LT1012
+
2050 TC02
FOR 1Hz NOISE BW INCREASE ALL THE CAPACITORS BY A FACTOR OF 10.
Rev. E
10
For more information www.analog.com
LTC2050/LTC2050HV
APPLICATIONS INFORMATION
Shutdown
output multiplied by the closed loop gain of the op amp.
To reduce this form of clock feedthrough, use smaller
valued gain setting resistors and minimize the source
resistance at the input. If the resistance seen at the inputs
is less than 10k, this form of clock feedthrough is less
The LTC2050 includes a shutdown pin in the 6-lead
SOT-23 and the SO-8 version. When this active low pin
is high or allowed to float, the device operates normally.
When the shutdown pin is pulled low, the device enters
shutdown mode; supply current drops to 3µA, all clock-
ing stops, and both inputs and output assume a high
impedance state.
than 1µV
input referred at 7.5kHz, or less than the
RMS
amount of residue clock feedthrough from the first form
described above.
Placing a capacitor across the feedback resistor reduces
either form of clock feedthrough by limiting the bandwidth
of the closed loop gain.
Clock Feedthrough, Input Bias Current
The LTC2050 uses auto-zeroing circuitry to achieve an
almost zero DC offset over temperature, common mode
voltage, and power supply voltage. The frequency of the
clock used for auto-zeroing is typically 7.5kHz. The term
clock feedthrough is broadly used to indicate visibility of
this clock frequency in the op amp output spectrum. There
are typically two types of clock feedthrough in auto zeroed
op amps like the LTC2050.
Input bias current is defined as the DC current into the
input pins of the op amp. The same current spikes that
cause the second form of clock feedthrough described
above, when averaged, dominate the DC input bias current
of the op amp below 70°C.
At temperatures above 70°C, the leakage of the ESD pro-
tection diodes on the inputs increases the input bias cur-
rents of both inputs in the positive direction, while the
current caused by the charge injection stays relatively
constant. At elevated temperatures (above 85°C) the
leakage current begins to dominate and both the negative
and positive pin’s input bias currents are in the positive
direction (into the pins).
The first form of clock feedthrough is caused by the settling
of the internal sampling capacitor and is input referred;
that is, it is multiplied by the closed loop gain of the op
amp. This form of clock feedthrough is independent of the
magnitude of the input source resistance or the magni-
tude of the gain setting resistors. The LTC2050 has a resi-
due clock feedthrough of less then 1µV
at 7.5kHz.
input referred
RMS
Input Pins, ESD Sensitivity
The second form of clock feedthrough is caused by the
small amount of charge injection occurring during the
sampling and holding of the op amp’s input offset volt-
age. The current spikes are multiplied by the impedance
seen at the input terminals of the op amp, appearing at the
ESD voltages above 700V on the input pins of the op amp
will cause the input bias currents to increase (more DC
current into the pins). At these voltages, it is possible to
damage the device to a point where the input bias current
exceeds the maximums specified in this data sheet.
Rev. E
11
For more information www.analog.com
LTC2050/LTC2050HV
TYPICAL APPLICATIONS
Single Supply Thermocouple Amplifier
1k
1%
255k
1%
100Ω
0.068µF
5V
5
5V
4
3
2
–
+
1
V
OUT
LT1025A
LTC2050
2
10mV/°C
7
–
K
+
GND R–
0.1µF
5
4
TYPE K
LT1025 COMPENSATES COLD JUNCTION
OVER 0°C TO 100°C TEMPERATURE RANGE
2050 TA03
Gain of 1001 Single Supply Instrumentation Amplifier
0.1µF
10Ω
+
10k
V
10k
+
4
3
5
V
–
+
10Ω
4
3
1
5
LTC2050
2
–
+
LTC2050
2
1
V
–V
OUT
IN
+V
IN
OUTPUT DC OFFSET ≤ 6mV
FOR 0.1% RESISTORS, CMRR = 54dB
2050 TA04
Instrumentation Amplifier with 100V Common Mode Input Voltage
1k
+
1M
V
+
1M
1M
V
5
4
3
+
IN
–
–
1k
5
4
3
1
V
LTC2050HV
–
1
+
V
OUT
LTC2050HV
2
+
–
2
V
1k
–
V
OUTPUT OFFSET ≤3mV
FOR 0.1% RESISTORS, CMRR = 54dB
2050 TA06
Rev. E
12
For more information www.analog.com
LTC2050/LTC2050HV
TYPICAL APPLICATIONS
High Precision 3-Input Mux
1.1k
10k
SHDN
SEL1
4
3
5
–
+
1
1
1
LTC2050
10k
IN 1
= 10
A
V
OUT
10Ω
SHDN
SEL2
4
3
5
–
+
LTC2050
IN 2
= 1000
A
V
SHDN
SEL3
4
3
5
–
+
LTC2050
IN 3
= 1
A
V
2050 TA07
SELECT INPUTS ARE CMOS LOGIC COMPATIBLE
Low Side Power Supply Current Sensing
5V
5
OUT
3
4
+
3V/AMP
1
LOAD CURRENT
IN MEASURED
CIRCUIT, REFERRED
TO –5V
LTC2050HV
–
2
10Ω
10k
TO
MEASURED
CIRCUIT
3mΩ
0.1µF
LOAD CURRENT
2050 TA08
–5V
Rev. E
13
For more information www.analog.com
LTC2050/LTC2050HV
PACKAGE DESCRIPTION
S5 Package
5-Lead Plastic TSOT-23
ꢅReꢨeꢩeꢪꢫe ꢓꢈꢏ ꢔꢡꢢ ꢬ ꢂꢁꢛꢂꢌꢛꢀꢥꢐꢁ Rev ꢍꢊ
ꢂ.ꢥꢋ
ꢗꢕꢞ
ꢂ.ꢚꢁ
REꢟ
ꢋ.ꢚꢂ ꢍꢎꢏ
ꢅꢆꢇꢈE ꢉꢊ
ꢀ.ꢋꢋ REꢟ
ꢀ.ꢁꢂ ꢃ ꢀ.ꢄꢁ
ꢅꢆꢇꢈE ꢉꢊ
ꢋ.ꢌꢂ ꢍꢎꢏ
ꢀ.ꢉ ꢗꢝꢆ
ꢐ.ꢌꢁ ꢗꢕꢞ ꢋ.ꢥꢋ REꢟ
ꢒꢝꢆ ꢇꢆE
REꢏꢇꢗꢗEꢆꢔEꢔ ꢎꢇꢓꢔER ꢒꢕꢔ ꢓꢕꢑꢇꢖꢈ
ꢒER ꢝꢒꢏ ꢏꢕꢓꢏꢖꢓꢕꢈꢇR
ꢂ.ꢐꢂ ꢃ ꢂ.ꢉꢁ ꢈꢑꢒ
ꢁ ꢒꢓꢏꢎ ꢅꢆꢇꢈE ꢐꢊ
ꢂ.ꢚꢁ ꢍꢎꢏ
ꢂ.ꢌꢂ ꢃ ꢂ.ꢚꢂ
ꢂ.ꢋꢂ ꢍꢎꢏ
ꢔꢕꢈꢖꢗ ꢘꢕꢙ
ꢂ.ꢂꢀ ꢃ ꢂ.ꢀꢂ
ꢀ.ꢂꢂ ꢗꢕꢞ
ꢂ.ꢐꢂ ꢃ ꢂ.ꢁꢂ REꢟ
ꢀ.ꢚꢂ ꢍꢎꢏ
ꢂ.ꢂꢚ ꢃ ꢂ.ꢋꢂ
ꢅꢆꢇꢈE ꢐꢊ
ꢆꢇꢈEꢠ
ꢎꢁ ꢈꢎꢇꢈꢛꢋꢐ ꢂꢐꢂꢋ REꢜ ꢍ
ꢀ. ꢔꢝꢗEꢆꢎꢝꢇꢆꢎ ꢕRE ꢝꢆ ꢗꢝꢓꢓꢝꢗEꢈERꢎ
ꢋ. ꢔRꢕꢡꢝꢆꢢ ꢆꢇꢈ ꢈꢇ ꢎꢏꢕꢓE
ꢐ. ꢔꢝꢗEꢆꢎꢝꢇꢆꢎ ꢕRE ꢝꢆꢏꢓꢖꢎꢝꢜE ꢇꢟ ꢒꢓꢕꢈꢝꢆꢢ
ꢉ. ꢔꢝꢗEꢆꢎꢝꢇꢆꢎ ꢕRE EꢞꢏꢓꢖꢎꢝꢜE ꢇꢟ ꢗꢇꢓꢔ ꢟꢓꢕꢎꢣ ꢕꢆꢔ ꢗEꢈꢕꢓ ꢍꢖRR
ꢁ. ꢗꢇꢓꢔ ꢟꢓꢕꢎꢣ ꢎꢣꢕꢓꢓ ꢆꢇꢈ EꢞꢏEEꢔ ꢂ.ꢋꢁꢉꢤꢤ
ꢥ. ꢦEꢔEꢏ ꢒꢕꢏꢧꢕꢢE REꢟEREꢆꢏE ꢝꢎ ꢗꢇꢛꢀꢚꢐ
Rev. E
14
For more information www.analog.com
LTC2050/LTC2050HV
PACKAGE DESCRIPTION
S6 Package
6-Lead Plastic TSOT-23
ꢅReꢨeꢩeꢪꢫe ꢓꢈꢏ ꢔꢠꢡ ꢬ ꢂꢁꢛꢂꢌꢛꢀꢑꢐꢑꢊ
ꢋ.ꢚꢂ ꢍꢎꢏ
ꢅꢆꢇꢈE ꢉꢊ
ꢂ.ꢑꢋ
ꢗꢕꢜ
ꢂ.ꢚꢁ
REꢝ
ꢀ.ꢋꢋ REꢝ
ꢀ.ꢉ ꢗꢞꢆ
ꢀ.ꢁꢂ ꢃ ꢀ.ꢄꢁ
ꢋ.ꢌꢂ ꢍꢎꢏ
ꢐ.ꢌꢁ ꢗꢕꢜ ꢋ.ꢑꢋ REꢝ
ꢅꢆꢇꢈE ꢉꢊ
ꢒꢞꢆ ꢇꢆE ꢞꢔ
REꢏꢇꢗꢗEꢆꢔEꢔ ꢎꢇꢓꢔER ꢒꢕꢔ ꢓꢕꢧꢇꢖꢈ
ꢒER ꢞꢒꢏ ꢏꢕꢓꢏꢖꢓꢕꢈꢇR
ꢂ.ꢐꢂ ꢃ ꢂ.ꢉꢁ
ꢑ ꢒꢓꢏꢎ ꢅꢆꢇꢈE ꢐꢊ
ꢂ.ꢚꢁ ꢍꢎꢏ
ꢂ.ꢌꢂ ꢃ ꢂ.ꢚꢂ
ꢂ.ꢋꢂ ꢍꢎꢏ
ꢔꢕꢈꢖꢗ ꢘꢕꢙ
ꢂ.ꢂꢀ ꢃ ꢂ.ꢀꢂ
ꢀ.ꢂꢂ ꢗꢕꢜ
ꢂ.ꢐꢂ ꢃ ꢂ.ꢁꢂ REꢝ
ꢀ.ꢚꢂ ꢍꢎꢏ
ꢂ.ꢂꢚ ꢃ ꢂ.ꢋꢂ
ꢅꢆꢇꢈE ꢐꢊ
ꢎꢑ ꢈꢎꢇꢈꢛꢋꢐ ꢂꢐꢂꢋ
ꢆꢇꢈEꢟ
ꢀ. ꢔꢞꢗEꢆꢎꢞꢇꢆꢎ ꢕRE ꢞꢆ ꢗꢞꢓꢓꢞꢗEꢈERꢎ
ꢋ. ꢔRꢕꢠꢞꢆꢡ ꢆꢇꢈ ꢈꢇ ꢎꢏꢕꢓE
ꢐ. ꢔꢞꢗEꢆꢎꢞꢇꢆꢎ ꢕRE ꢞꢆꢏꢓꢖꢎꢞꢢE ꢇꢝ ꢒꢓꢕꢈꢞꢆꢡ
ꢉ. ꢔꢞꢗEꢆꢎꢞꢇꢆꢎ ꢕRE EꢜꢏꢓꢖꢎꢞꢢE ꢇꢝ ꢗꢇꢓꢔ ꢝꢓꢕꢎꢣ ꢕꢆꢔ ꢗEꢈꢕꢓ ꢍꢖRR
ꢁ. ꢗꢇꢓꢔ ꢝꢓꢕꢎꢣ ꢎꢣꢕꢓꢓ ꢆꢇꢈ EꢜꢏEEꢔ ꢂ.ꢋꢁꢉꢤꢤ
ꢑ. ꢥEꢔEꢏ ꢒꢕꢏꢦꢕꢡE REꢝEREꢆꢏE ꢞꢎ ꢗꢇꢛꢀꢚꢐ
Rev. E
15
For more information www.analog.com
LTC2050/LTC2050HV
PACKAGE DESCRIPTION
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
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Rev. E
16
For more information www.analog.com
LTC2050/LTC2050HV
REVISION HISTORY (Revision history begins at Rev D)
REV
DATE
DESCRIPTION
PAGE NUMBER
2
D
08/17 Updated T
JMAX
E
11/18 Added MP option (higher temperature version)
1, 2, 4-6, 7-8
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications
subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
17
LTC2050/LTC2050HV
TYPICAL APPLICATION
Ground Referred Precision Current Sources
LT1034
0 ≤ I
≤ 4mA
OUT
–
(V ) + 1.5V ≤ V
≤ – 1V
OUT
+
+
V
V
OUT
–
1.235V
= ———
10k
I
OUT
4
3
5
R
SET
–
+
1
LTC2050
2
3
4
R
SET
5
+
1
LTC2050
2
R
SET
10k
–
1.235V
= ———
I
OUT
–
R
SET
+
V
V
OUT
–
0 ≤ I
≤ 4mA
OUT
OUT
LT1034
+
0.2V ≤ V
≤ (V ) – 1.5V
2050 TA05
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
Low Supply Current 200µA
LTC1049
Low Power Zero-Drift Op Amp
Precision Zero-Drift Op Amp
LTC1050
Single Supply Operation 4.75V to 16V, Noise Tested and Guaranteed
Dual/Quad
LTC1051/LTC1053 Precision Zero-Drift Op Amp
LTC1150
LTC1152
LT®1677
15V Zero-Drift Op Amp
High Voltage Operation 18V
Rail-to-Rail Input and Output Zero-Drift Op Amp
Single Zero-Drift Op Amp with Rail-to-Rail Input and Output and Shutdown
Low Noise Rail-to-Rail Input and Output
Precision Op Amp
V
= 90µV, V = 2.7V to 44V
S
OS
LT1884/LT1885
LTC2051
Rail-to-Rail Output Precision Op Amp
Dual Zero-Drift Op Amp
V
= 50µV, I = 400pA, V = 2.7V to 40V
B S
OS
Dual Version of the LTC2050 in MS8 Package
Rev. E
11/18
www.analog.com
18
ANALOG DEVICES, INC. 1999-2018
相关型号：
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