LINER LTC2051HVIMS8 Dual zero-drift operational amplifier Datasheet

Final Electrical Specifications
LTC2051
Dual Zero-Drift
Operational Amplifier
February 2000
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DESCRIPTIO
FEATURES
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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 applications. The power consumption is 750µA per op amp.
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)
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
Overload Recovery Time: 2ms (Typ)
Operating Temperature Range –40°C to 85°C
The LTC2051, despite its miniature size, features uncompromising DC performance. The typical input offset voltage 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.
The input common mode voltage ranges from the negative
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, loaded with 1kΩ, is in excess of 140dB. The LTC2051
also features a 1.5µVP-P DC to 10Hz noise and a 3MHz gain
bandwidth product.
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APPLICATI
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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.
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TYPICAL APPLICATI
High Performance Low Cost Instrumentation Amplifier
–VIN
VS = 5V
R2
100k
0.1%
R1
499Ω
0.1%
3
5V
2
3
–
8
1/2
LTC2051HV
1
R1
499Ω
0.1%
1
µV
R2
100k
0.1%
Input Referred Noise 0.1Hz to 10Hz
6
–
–1
1/2
LTC2051HV
+
VIN
5
+
0
4
7
AV = 201
–5V
–3
0
2
2051 TA01
6
4
TIME (s)
8
10
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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
1
LTC2051
W W
W
AXI U
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ABSOLUTE
RATI GS (Note 1)
Total Supply Voltage (V + to V –)
LTC2051 .................................................................. 7V
LTC2051HV ........................................................... 12V
Input Voltage ........................ (V + + 0.3V) to (V – – 0.3V)
Output Short-Circuit Duration ......................... Indefinite
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
U
W
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
TOP VIEW
OUT A
–IN A
+IN A
V–
1
2
3
4
8
7
6
5
V+
OUT B
–IN B
+IN B
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 125°C, θJA = 250°C/W
LTC2051CMS8
LTC2051IMS8
LTC2051HVCMS8
LTC2051HVIMS8
MS8 PART
MARKING
LTMN
LTMP
LTPJ
LTPK
ORDER PART
NUMBER
LTC2051CS8
LTC2051IS8
LTC2051HVCS8
LTC2051HVIS8
TOP VIEW
OUT A 1
8
V+
–IN A 2
7
OUT B
+IN A 3
6
–IN B
V– 4
5
+IN B
S8 PART
MARKING
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 190°C/W
2051
2051I
2051HV
051HVI
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
Input Offset Voltage
(Note 2)
Average Input Offset Drift
(Note 2)
MIN
Input Offset Current
±3
±0.03
50
UNITS
µV
µV/°C
nV/√mo
±8
±50
±100
pA
pA
±25
●
±75
±150
pA
pA
VS = 3V
VS = 3V
●
±100
±150
pA
pA
VS = 5V
VS = 5V
●
±150
±200
pA
pA
VS = 3V
VS = 3V
●
VS = 5V
VS = 5V
Input Noise Voltage
RS = 100Ω, DC to 10Hz
Common Mode Rejection Ratio
VCM = V – to V + – 1.3, VS = 3V
1.5
µVP-P
●
115
110
130
130
dB
dB
●
120
115
130
130
dB
dB
●
120
115
130
130
dB
dB
VCM = V – to V + – 1.3, VS = 5V
Power Supply Rejection Ratio
2
MAX
●
Long-Term Offset Drift
Input Bias Current
TYP
±0.5
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
MIN
TYP
Large-Signal Voltage Gain
RL = 10k, VS = 3V
●
120
115
140
140
dB
dB
●
125
120
140
140
dB
dB
●
●
V+ – 0.15
V+ – 0.05
V+ – 0.06
V+ – 0.02
V
V
RL = 10k, VS = 5V
Maximum Output Voltage Swing
RL = 2k
RL = 10k
Slew Rate
2
Gain Bandwidth Product
Supply Current (2 Amplifiers)
MAX
V/µs
3
MHz
No Load, VS = 3V
●
1.5
2.0
No Load, VS = 5V
●
1.7
2.4
Internal Sampling Frequency
UNITS
7.5
mA
mA
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
Input Offset Voltage
(Note 2)
Average Input Offset Drift
(Note 2)
MIN
TYP
MAX
±1
±3
±0.03
●
Long-Term Offset Drift
50
±90
RS = 100Ω, DC to 10Hz
VCM = V – to V + – 1.3
pA
pA
●
±300
±500
pA
pA
1.5
µVP-P
●
125
120
130
130
dB
dB
●
120
115
130
130
dB
dB
●
125
120
140
140
dB
dB
●
●
4.80
4.95
4.92
4.98
V
V
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Maximum Output Voltage Swing
RL = 10k
RL = 2k
RL = 10k
µV/°C
nV/√mo
±150
±300
Input Offset Current
Common Mode Rejection Ratio
µV
●
Input Bias Current
Input Noise Voltage
UNITS
Slew Rate
2
V/µs
Gain Bandwidth Product
3
MHz
Supply Current (2 Amplifiers)
No Load
Internal Sampling Frequency
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: These parameters are guaranteed by design. Thermocouple effects
preclude measurements of these voltage levels during automated testing.
●
2
7.5
3
mA
kHz
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.
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LTC2051
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PACKAGE DESCRIPTION
Dimensions in inches (millimeters) unless otherwise noted.
MS8 Package
8-Lead Plastic MSOP
(LTC DWG # 05-08-1660)
0.040 ± 0.006
(1.02 ± 0.15)
0.007
(0.18)
0.034 ± 0.004
(0.86 ± 0.102)
0.118 ± 0.004*
(3.00 ± 0.102)
8
7 6
5
0° – 6° TYP
0.021 ± 0.006
(0.53 ± 0.015)
SEATING
PLANE 0.012
(0.30)
0.0256
REF
(0.65)
BSC
0.006 ± 0.004
(0.15 ± 0.102)
0.118 ± 0.004**
(3.00 ± 0.102)
0.193 ± 0.006
(4.90 ± 0.15)
MSOP (MS8) 1098
1
* 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
2 3
4
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
× 45°
(0.254 – 0.508)
0.008 – 0.010
(0.203 – 0.254)
0.053 – 0.069
(1.346 – 1.752)
0°– 8° TYP
0.016 – 0.050
(0.406 – 1.270)
0.014 – 0.019
(0.355 – 0.483)
8
7
6
5
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
TYP
0.150 – 0.157**
(3.810 – 3.988)
0.228 – 0.244
(5.791 – 6.197)
*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
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2
3
4
SO8 0996
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Linear Technology Corporation
2051i LT/TP 0200 4K • PRINTED IN USA
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900 ● FAX: (408) 434-0507 ● www.linear-tech.com
 LINEAR TECHNOLOGY CORPORATION 2000
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