LTC2051_1 Datasheet, PDF (1/12 Pages) Linear Technology – Dual/Quad Zero-Drift Operational Amplifiers

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 1.5μV_P-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
1
LTC2051HV
–V_IN ³ +
R2
10k
0.1%
R1
100Ω
0.1%
6_–
1/2
7
LTC2051HV
V_IN 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
20512fd
1