LTC1992 Family
Low Power, Fully Differential
Input/Output
Amplifier/Driver Family
FEATURES
DESCRIPTION
TheLTC®1992productfamilyconsistsoffivefullydifferen-
tial,lowpoweramplifiers.TheLTC1992isanunconstrained
fully differential amplifier. The LTC1992-1, LTC1992-2,
LTC1992-5 and LTC1992-10 are fixed gain blocks (with
gains of 1, 2, 5 and 10 respectively) featuring precision
on-chip resistors for accurate and ultrastable gain. All of
theLTC1992partshaveaseparateinternalcommonmode
feedback path for outstanding output phase balancing
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Available with Adjustable Gain or Fixed Gain of 1,
2, 5 or 10
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0ꢀ.3 ꢁ(axꢂ Gain Error froꢃ ꢄ–0ꢅC to ꢆ5ꢅC
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.ꢀ5ppꢃ/ꢅC Gain Teꢃperature Coefficient
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5ppꢃ Gain Long Terꢃ Stability
Fully Differential Input and Output
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C
Stable up to 10,000pF
LOAD
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Adjustable Output Coꢃꢃon (ode Voltage
Rail-to-Rail Output Swing
and reduced second order harmonics. The V
pin sets
OCM
Low Supply Current: 1mA (Max)
High Output Current: 10mA (Min)
Specified on a Single 2.7V to 5V Supply
DC Offset Voltage <2.5mV (Max)
Available in 8-Lead MSOP Package
the output common mode level independent of the input
common mode level. This feature makes level shifting of
signals easy.
The amplifiers’ differential inputs operate with signals
ranging from rail-to-rail with a common mode level from
the negative supply up to 1.3V from the positive supply.
The differential input DC offset is typically 250μV. The
rail-to-rail outputs sink and source 10mA. The LTC1992
is stable for all capacitive loads up to 10,000pF.
APPLICATIONS
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Differential Driver/Receiver
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Differential Amplification
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Single-Ended to Differential Conversion
Level Shifting
Trimmed Phase Response for Multichannel Systems
The LTC1992 can be used in single supply applications
with supply voltages as low as 2.7V. It can also be used
with dual supplies up to 5V. The LTC1992 is available in
an 8-pin MSOP package.
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L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
Single-Supply, Single-Ended to Differential Conversion
10k
5V
5V
0V
–5V
5V
3
5V
2.5V
0V
10k
V
4
IN
1
0V
V
+
MID
–
IN
(5V/DIV)
7
V
V
–5V
5V
LTC1992
2
8
+OUT
(2V/DIV)
–OUT
OCM
5V
2.5V
0V
10k
+
–
6
5
0.01μF
OUTPUT SIGNAL
FRO( A
SINGLE-SUPPLꢇ SꢇSTE(
INPUT SIGNAL
FRO( A
5V SꢇSTE(
0V
10k
1992 TA01a
1992 TA01b
1992fb
1