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PDF LTC2052 Data sheet ( Hoja de datos )
| Número de pieza | LTC2052 | |
| Descripción | Dual/Quad Zero-Drift Operational Amplifiers | |
| Fabricantes | Linear | |
| Logotipo |  |
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LTC2051/LTC2052
Dual/Quad Zero-Drift
Operational Amplifiers
FEATURES
■ Maximum Offset Voltage of 3μV
■ Maximum Offset Voltage Drift of 30nV/°C
■ Small Footprint, Low Profile MS8/GN16 Packages
■ Single Supply Operation: 2.7V to ±5.5V
■ Noise: 1.5μVP-P (0.01Hz to 10Hz Typ)
■ Voltage Gain: 140dB (Typ)
■ PSRR: 130dB (Typ)
■ CMRR: 130dB (Typ)
■ Supply Current: 0.75mA (Typ) per Amplifier
■ Extended Common Mode Input Range
■ Output Swings Rail-to-Rail
■ Operating Temperature Range – 40°C to 125°C
■ Available in 3mm × 3mm × 0.8mm DFN Package
U
APPLICATIO S
■ Thermocouple Amplifiers
■ Electronic Scales
■ Medical Instrumentation
■ Strain Gauge Amplifiers
■ High Resolution Data Acquisition
■ DC Accurate RC Active Filters
■ Low Side Current Sense
DESCRIPTIO
The LTC®2051/LTC2052 are dual/quad zero-drift opera-
tional amplifiers available in the MS8 and SO-8/GN16 and
S14 packages. For space limited applications, the LTC2051
is available in a 3mm × 3mm × 0.8mm dual fine pitch
leadless package (DFN). They operate from a single 2.7V
supply and support ±5V applications. The current con-
sumption is 750μA per op amp.
The LTC2051/LTC2052, despite their miniature size, fea-
ture 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 rejec-
tion ratio (CMRR) of more than 130dB.
The input common mode voltage ranges from the negative
supply up to typically 1V from the positive supply. The
LTC2051/LTC2052 also have an enhanced output stage
capable of driving loads as low as 2kΩ to both supply rails.
The open-loop gain is typically 140dB. The LTC2051/
LTC2052 also feature a 1.5μVP-P DC to 10Hz noise and a
3MHz gain-bandwidth product.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATIO
High Performance Low Cost Instrumentation Amplifier
R1
100Ω
0.1%
R2
10k
5V
0.1%
2– 8
1/2
LTC2051HV
–VIN 3 +
1
R2
10k
0.1%
R1
100Ω
0.1%
6–
1/2
LTC2051HV
7
VIN 5 +
4 AV = 101
–5V
20512 TA01
Input Referred Noise 0.1Hz to 10Hz
2
1
0
–1
–2
0 2 4 6 8 10
TIME (SEC)
2052 TA02
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1
1 page  
LTC2051/LTC2052
ELECTRICAL CHARACTERISTICS (LTC2051/LTC2052, LTC2051HV/LTC2052HV) 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
Shutdown Pin Input Low Voltage (VIL)
Shutdown Pin Input High Voltage (VIH)
Shutdown Pin Input Current
Internal Sampling Frequency
CONDITIONS
VSHDN = VIL, VS = 3V
VSHDN = VIL, VS = 5V
LTC2051C/LTC2052C
LTC2051I/LTC2052I
MIN TYP MAX
LTC2051H/LTC2052H
MIN TYP MAX
●
● V + – 0.5
V – + 0.5
V + – 0.5
V – + 0.5
● –1 –3
● –2 –5
–1 –3
–2 –5
7.5 7.5
UNITS
V
V
μA
μA
kHz
(LTC2051HV/LTC2052HV) 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)
PARAMETER
CONDITIONS
LTC2051C/LTC2052C
LTC2051I/LTC2052I
MIN TYP MAX
LTC2051H/LTC2052H
MIN TYP MAX UNITS
Input Offset Voltage
(Note 2)
±1 ±3
±1 ±3
μV
Average Input Offset Drift
(Note 2)
● 0.01 ±0.03
0.01 ±0.05 μV/°C
Long-Term Offset Drift
50 50 nV/√mo
Input Bias Current (Note 4)
±90 ±150
● ±300
±90 ±150
±3000
pA
pA
Input Offset Current (Note 4)
±300
● ±500
±300
±700
pA
pA
Input Noise Voltage
Common Mode Rejection Ratio
RS = 100Ω, DC to 10Hz
VCM = V– to V+ – 1.3
125
● 120
1.5
130
130
1.5
125 130
120 130
μVP-P
dB
dB
Power Supply Rejection Ratio
120
● 115
130
130
120 130
115 130
dB
dB
Large-Signal Voltage Gain
RL = 10k
125
● 120
140
140
125 140
120 140
dB
dB
Maximum Output Voltage Swing
Slew Rate
RL = 2k to GND
RL = 10k to GND
● ±4.75 ±4.92
● ±4.90 ±4.98
2
± 4.50
± 4.85
± 4.92
± 4.98
2
V
V
V/μs
Gain Bandwidth Product
3 3 MHz
Supply Current (Per Amplifier)
Supply Current, Shutdown
Shutdown Pin Input Low Voltage (VIL)
Shutdown Pin Input High Voltage (VIH)
Shutdown Pin Input Current
Internal Sampling Frequency
No Load, VSHDN = VIH
VSHDN = VIL
VSHDN = VIL
● 1 1.5
1 1.5
● 15 30
15 30
●
● V + – 0.5
V – + 0.5
V + – 0.5
V – + 0.5
● –7 –15
– 7 – 15
7.5 7.5
mA
μA
V
V
μA
kHz
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: These parameters are guaranteed by design. Thermocouple effects
preclude measurements of these voltage levels during automated testing.
Note 3: All versions of the LTC2051/LTC2052 are designed, characterized
and expected to meet the extended temperature limits of –40°C and 125°C.
The LTC2051C/LTC2052C/LTC2051HVC/LTC2052HVC are guaranteed to
meet the temperature limits of 0°C and 70°C. The LTC2051I/LTC2052I/
LTC2051HVI/LTC2052HVI are guaranteed to meet temperature limits of –
40°C and 85°C. The LTC2051H/LTC2051HVH and LTC2052H/LTC2052HVH
are guaranteed to meet the temperature limits of – 40°C and 125°C.
Note 4: The bias current measurement accuracy depends on the proximity of
the negative supply bypass capacitors to the device under test. Because of
this, only the bias current of channel B (LTC2051) and channels A and B
(LTC2052) are 100% tested to the data sheet specifications. The bias
currents of the remaining channels are 100% tested to relaxed limits,
however, their values are guaranteed by design to meet the data sheet limits.
Note 5: This parameter is guaranteed to meet specified performance
through design and characterization. It has not been tested.
Note 6: The θJA specified for the DD package is with minimal PCB heat
spreading metal. Using expanded metal area on all layers of a board
reduces this value.
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5
5 Page 
LTC2051/LTC2052
PACKAGE DESCRIPTIO
S8 Package
8-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.010
(0.254
–
–
.020
0.508)
×
45°
.008 – .010
(0.203 – 0.254)
.053 – .069
(1.346 – 1.752)
0°– 8° TYP
.016 – .050
(0.406 – 1.270)
NOTE:
1. DIMENSIONS
IN
INCHES
(MILLIMETERS)
.014 – .019
(0.355 – 0.483)
TYP
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
.004 – .010
(0.101 – 0.254)
.189 – .197
(4.801 – 5.004)
NOTE 3
8 765
.050
(1.270)
BSC
.228 – .244
(5.791 – 6.197)
1 2 34
GN Package
16-Lead Plastic SSOP (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1641)
.050 BSC
.045 ±.005
.150 – .157
(3.810 – 3.988)
.245
MIN
NOTE 3
.160 ±.005
SO8 0303
.030 ±.005
TYP
RECOMMENDED SOLDER PAD LAYOUT
.007 – .0098
(0.178 – 0.249)
.015 ± .004
(0.38 ± 0.10)
× 45°
0° – 8° TYP
.0532 – .0688
(1.35 – 1.75)
.004 – .0098
(0.102 – 0.249)
.016 – .050
(0.406 – 1.270)
.008 – .012
(0.203 – 0.305)
TYP
.0250
(0.635)
BSC
NOTE:
1. CONTROLLING DIMENSION: INCHES
2.
DIMENSIONS
ARE
IN
INCHES
(MILLIMETERS)
.229 – .244
(5.817 – 6.198)
3. DRAWING NOT TO SCALE
*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
.189 – .196*
(4.801 – 4.978)
16 15 14 13 12 11 10 9
.009
(0.229)
REF
.254 MIN
.150 – .157**
(3.810 – 3.988)
.045 ±.005
.150 – .165
1 234 5678
.0165 ± .0015
.0250 BSC
RECOMMENDED SOLDER PAD LAYOUT
GN16 (SSOP) 0204
S Package
14-Lead Plastic Small Outline (Narrow .150 Inch)
(Reference LTC DWG # 05-08-1610)
.050 BSC
N
.045 ±.005
.337 – .344
(8.560 – 8.738)
NOTE 3
14 13 12 11 10
9
8
.245
MIN
12 3
.160 ±.005
.228 – .244
(5.791 – 6.197)
N/2
N
.150 – .157
(3.810 – 3.988)
NOTE 3
N/2
.030 ±.005
TYP RECOMMENDED SOLDER PAD LAYOUT
1234567
.010
(0.254
–
–
.020
0.508)
×
45°
.008 – .010
(0.203 – 0.254)
0° – 8° TYP
.053 – .069
(1.346 – 1.752)
.004 – .010
(0.101 – 0.254)
.016 – .050
(0.406 – 1.270)
NOTE:
1. DIMENSIONS
IN
INCHES
(MILLIMETERS)
.014 – .019
(0.355 – 0.483)
TYP
2. DRAWING NOT TO SCALE
3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .006" (0.15mm)
.050
(1.270)
BSC
S14 0502
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-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LTC2052.PDF ] | |
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