LTC2051IS8 [Linear]
Dual Zero-Drift Operational Amplifier; 双零漂移运算放大器
| 型号： | LTC2051IS8 |
| 厂家： | 
Linear |
| 描述： | Dual Zero-Drift Operational Amplifier |
| 文件： | 总4页 (文件大小：120K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Final Electrical Specifications
LTC2051
Dual Zero-Drift
Operational Amplifier
February 2000
U
DESCRIPTIO
EATURE
S
F
The LTC®2051 is a dual zero-drift operational amplifier
available in the MS8 and SO-8 packages. It operates from
a single 2.7V supply while still supporting ±5V applica-
tions. The power consumption is 750µA per op amp.
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Maximum Offset Voltage of 3µV
Maximum Offset Voltage Drift of 30nV/°C
Small Footprint, Low Profile MS8 Package
Noise: 1.5µVP-P (0.1Hz to 10Hz Typ)
Voltage Gain: 140dB (Typ)
The LTC2051, 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 supply
rejection ratio (PSRR) and common mode rejection ratio
(CMRR) of more than 130dB.
PSRR: 130dB (Typ)
CMRR: 130dB (Typ)
Supply Current: 0.75mA (Typ) per Amplifier
Single Supply Operation: 2.7V to 11V
Extended Common Mode Input Range
Output Swings Rail-to-Rail
Theinputcommonmodevoltagerangesfromthenegative
supply up to 1V from the positive supply. The LTC2051
also has an enhanced output stage capable of driving
loads as low as 1kΩ to both supply rails. The open-loop
gain,loadedwith1kΩ,isinexcessof140dB.TheLTC2051
alsofeaturesa1.5µVP-P DCto10Hznoiseanda3MHzgain
bandwidth product.
Overload Recovery Time: 2ms (Typ)
Operating TempeO ratU ure Range –40°C to 85°C
PPLICATI
S
A
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Thermocouple Amplifiers
Electronic Scales
Medical Instrumentation
Strain Gauge Amplifiers
High Resolution Data Acquisition
DC Accurate RC Active Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
U
O
TYPICAL APPLICATI
High Performance Low Cost Instrumentation Amplifier
Input Referred Noise 0.1Hz to 10Hz
V
= 5V
S
R2
100k
0.1%
R1
499Ω
0.1%
3
1
R2
5V
100k
0.1%
R1
499Ω
0.1%
2
3
8
0
–
1/2
LTC2051HV
1
6
5
–1
–
1/2
LTC2051HV
7
–V
+
IN
+
V
–3
IN
A
= 201
4
V
–5V
0
2
4
6
8
10
2051 TA01
TIME (s)
LT2051 TA02
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.
1
LTC2051
W W W
U
ABSOLUTE AXI U RATI GS (Note 1)
Total Supply Voltage (V+ to V–)
Operating Temperature Range ............... –40°C to 85°C
Specified Temperature Range (Note 3).. –40°C to 85°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
LTC2051 .................................................................. 7V
LTC2051HV ........................................................... 12V
Input Voltage ........................ (V+ + 0.3V) to (V – – 0.3V)
Output Short-Circuit Duration......................... Indefinite
W
U
/O
PACKAGE RDER I FOR ATIO
ORDER PART
NUMBER
ORDER PART
NUMBER
LTC2051CMS8
TOP VIEW
LTC2051CS8
LTC2051IS8
LTC2051HVCS8
LTC2051HVIS8
TOP VIEW
LTC2051IMS8
+
OUT A
–IN A
+IN A
1
2
3
4
8
7
6
5
V
+
OUT A
–IN A
+IN A
1
2
3
4
8 V
LTC2051HVCMS8
LTC2051HVIMS8
OUT B
–IN B
+IN B
7 OUT B
6 –IN B
5 +IN B
–
V
–
V
MS8 PART
MARKING
S8 PART
MARKING
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 250°C/W
S8 PACKAGE
8-LEAD PLASTIC SO
LTMN
LTMP
LTPJ
TJMAX = 125°C, θJA = 190°C/W
2051
2051I
2051HV
051HVI
LTPK
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS: (LTC2051, LTC2051HV) The ● denotes the specifications which apply over
the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 5V unless otherwise noted. (Note 3)
PARAMETER
CONDITIONS
(Note 2)
MIN
TYP
MAX
±3
UNITS
µV
Input Offset Voltage
Average Input Offset Drift
Long-Term Offset Drift
Input Bias Current
±0.5
(Note 2)
●
±0.03
µV/°C
nV/√mo
50
V = 3V
±8
±50
±100
pA
pA
S
V = 3V
S
●
●
●
●
V = 5V
±25
±75
±150
pA
pA
S
V = 5V
S
Input Offset Current
V = 3V
±100
±150
pA
pA
S
V = 3V
S
V = 5V
±150
±200
pA
pA
S
V = 5V
S
Input Noise Voltage
R = 100Ω, DC to 10Hz
1.5
µV
S
P-P
dB
dB
–
+
Common Mode Rejection Ratio
V
= V to V – 1.3, V = 3V
115
110
130
130
CM
S
●
●
●
–
+
V
= V to V – 1.3, V = 5V
120
115
130
130
dB
dB
CM
S
Power Supply Rejection Ratio
120
115
130
130
dB
dB
2
LTC2051
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 5V unless otherwise noted. (Note 3)
PARAMETER
CONDITIONS
R = 10k, V = 3V
MIN
TYP
MAX
UNITS
Large-Signal Voltage Gain
120
115
140
140
dB
dB
L
S
●
●
R = 10k, V = 5V
125
120
140
140
dB
dB
L
S
+
+
Maximum Output Voltage Swing
R = 2k
●
●
V – 0.15
V – 0.05
V – 0.06
V – 0.02
V
V
L
+
+
R = 10k
L
Slew Rate
2
V/µs
MHz
mA
Gain Bandwidth Product
Supply Current (2 Amplifiers)
3
No Load, V = 3V
●
●
1.5
1.7
7.5
2.0
2.4
S
No Load, V = 5V
mA
S
Internal Sampling Frequency
kHz
The ● 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) (LTC2051HV)
PARAMETER
CONDITIONS
(Note 2)
MIN
TYP
MAX
±3
UNITS
µV
Input Offset Voltage
Average Input Offset Drift
Long-Term Offset Drift
Input Bias Current
±1
(Note 2)
●
±0.03
µV/°C
nV/√mo
50
±90
±150
±300
pA
pA
●
●
Input Offset Current
±300
±500
pA
pA
Input Noise Voltage
R = 100Ω, DC to 10Hz
1.5
µV
S
P-P
dB
dB
–
+
Common Mode Rejection Ratio
V
= V to V – 1.3
125
120
130
130
CM
●
●
●
Power Supply Rejection Ratio
Large-Signal Voltage Gain
120
115
130
130
dB
dB
R = 10k
L
125
120
140
140
dB
dB
Maximum Output Voltage Swing
R = 2k
R = 10k
L
●
●
4.80
4.95
4.92
4.98
V
V
L
Slew Rate
2
3
V/µs
MHz
mA
Gain Bandwidth Product
Supply Current (2 Amplifiers)
Internal Sampling Frequency
No Load
●
2
3
7.5
kHz
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 3: The LTC2051C, LTC2051HVC is guaranteed to meet specified
performance from 0°C to 70°C and is designed, characterized and
expected to meet these extended temperature limits, but is not tested at –
40°C and 85°C. The LTC2051I, LTC2051HVI is guaranteed to meet the
extended temperature limits.
Note 2: These parameters are guaranteed by design. Thermocouple effects
preclude measurements of these voltage levels during automated testing.
3
LTC2051
U
PACKAGE DESCRIPTION
Dimensions in inches (millimeters) unless otherwise noted.
MS8 Package
8-Lead Plastic MSOP
(LTC DWG # 05-08-1660)
0.118 ± 0.004*
(3.00 ± 0.102)
8
7
6
5
0.040 ± 0.006
(1.02 ± 0.15)
0.034 ± 0.004
(0.86 ± 0.102)
0.007
(0.18)
0° – 6° TYP
0.118 ± 0.004**
(3.00 ± 0.102)
SEATING
PLANE
0.193 ± 0.006
(4.90 ± 0.15)
0.012
(0.30)
REF
0.021 ± 0.006
(0.53 ± 0.015)
0.006 ± 0.004
(0.15 ± 0.102)
0.0256
(0.65)
BSC
MSOP (MS8) 1098
1
2
3
4
* DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH,
PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS.
INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.189 – 0.197*
(4.801 – 5.004)
0.010 – 0.020
(0.254 – 0.508)
7
5
8
6
× 45°
0.053 – 0.069
(1.346 – 1.752)
0.004 – 0.010
(0.101 – 0.254)
0.008 – 0.010
(0.203 – 0.254)
0°– 8° TYP
0.150 – 0.157**
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
0.016 – 0.050
(0.406 – 1.270)
0.050
(1.270)
TYP
0.014 – 0.019
(0.355 – 0.483)
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
1
2
3
4
SO8 0996
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2051i LT/TP 0200 4K • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
4
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LINEAR TECHNOLOGY CORPORATION 2000
(408)432-1900 FAX:(408)434-0507 www.linear-tech.com
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