Input/Output Amplifier/Driver. LTC1992 Datasheet

LTC1992 Amplifier/Driver. Datasheet pdf. Equivalent

LTC1992 Datasheet
Recommendation LTC1992 Datasheet
Part LTC1992
Description Fully Differential Input/Output Amplifier/Driver
Feature LTC1992; LTC1992 Family Low Power, Fully Differential Input/Output Amplifier/Driver Family FEATURES n Availa.
Manufacture Linear
Datasheet
Download LTC1992 Datasheet





Linear LTC1992
LTC1992 Family
Low Power, Fully Differential
Input/Output
Amplifier/Driver Family
FEATURES
n Available with Adjustable Gain or Fixed Gain of 1,
2, 5 or 10
n ±0.3% (Max) Gain Error from –40°C to 85°C
n 3.5ppm/°C Gain Temperature Coefficient
n 5ppm Gain Long Term Stability
n Fully Differential Input and Output
n CLOAD Stable up to 10,000pF
n Adjustable Output Common Mode Voltage
n Rail-to-Rail Output Swing
n Low Supply Current: 1mA (Max)
n High Output Current: 10mA (Min)
n Specified on a Single 2.7V to ±5V Supply
n DC Offset Voltage <2.5mV (Max)
n Available in 8-Lead MSOP Package
APPLICATIONS
n Differential Driver/Receiver
n Differential Amplification
n Single-Ended to Differential Conversion
n Level Shifting
n Trimmed Phase Response for Multichannel Systems
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.
DESCRIPTION
The LTC®1992 product family consists of five fully differen-
tial, low power amplifiers. The LTC1992 is an unconstrained
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
the LTC1992 parts have a separate internal common mode
feedback path for outstanding output phase balancing
and reduced second order harmonics. The VOCM pin sets
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.
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.
TYPICAL APPLICATION
Single-Supply, Single-Ended to Differential Conversion
10k
5V
10k
0V VIN
–5V
10k
INPUT SIGNAL
FROM A
±5V SYSTEM
0.01μF
5V
3
1– +4
7 VMID
2
LTC1992
VOCM
8+ –5
6
10k
1992 TA01a
5V
2.5V
0V
5V
2.5V
0V
OUTPUT SIGNAL
FROM A
SINGLE-SUPPLY SYSTEM
VIN
(5V/DIV)
+OUT
(2V/DIV)
–OUT
5V
0V
–5V
5V
0V
1992 TA01b
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Linear LTC1992
LTC1992 Family
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (+VS to –VS)............................. 12V
Maximum Voltage
on any Pin................ (–VS – 0.3V) ≤ VPIN ≤ (+VS + 0.3V)
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 5)
LTC1992CMS8/LTC1992-XCMS8/
LTC1992IMS8/LTC1992-XIMS8 ...........–40°C to 85°C
LTC1992HMS8/LTC1992-XHMS8 ...... –40°C to 125°C
Specified Temperature Range (Note 6)
LTC1992CMS8/LTC1992-XCMS8 ............. 0°C to 70°C
LTC1992IMS8/LTC1992-XIMS8 ...........–40°C to 85°C
LTC1992HMS8/LTC1992-XHMS8 ...... –40°C to 125°C
Storage Temperature Range ................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
PIN CONFIGURATION
LTC1992
TOP VIEW
–IN 1
8 +IN
VOCM 2
7 VMID
+VS 3
–+
+–
6 –VS
+OUT 4
5 –OUT
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 250°C/W
LTC1992-X
TOP VIEW
–IN 1
8 +IN
VOCM 2
7 VMID
+VS 3
–+
+–
6 –VS
+OUT 4
5 –OUT
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 250°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
SPECIFIED TEMPERATURE RANGE
LTC1992CMS8#PBF
LTC1992CMS8#TRPBF
LTYU
8-Lead Plastic MSOP
0°C to 70°C
LTC1992IMS8#PBF
LTC1992IMS8#TRPBF
LTYU
8-Lead Plastic MSOP
–40°C to 85°C
LTC1992HMS8#PBF
LTC1992HMS8#TRPBF
LTYU
8-Lead Plastic MSOP
–40°C to 125°C
LTC1992-1CMS8#PBF
LTC1992-1CMS8#TRPBF
LTACJ
8-Lead Plastic MSOP
0°C to 70°C
LTC1992-1IMS8#PBF
LTC1992-1IMS8#TRPBF
LTACJ
8-Lead Plastic MSOP
–40°C to 85°C
LTC1992-1HMS8#PBF LTC1992-1HMS8#TRPBF LTACJ
8-Lead Plastic MSOP
–40°C to 125°C
LTC1992-2CMS8#PBF
LTC1992-2CMS8#TRPBF
LTYV
8-Lead Plastic MSOP
0°C to 70°C
LTC1992-2IMS8#PBF
LTC1992-2IMS8#TRPBF
LTYV
8-Lead Plastic MSOP
–40°C to 85°C
LTC1992-2HMS8#PBF LTC1992-2HMS8#TRPBF LTYV
8-Lead Plastic MSOP
–40°C to 125°C
LTC1992-5CMS8#PBF
LTC1992-5CMS8#TRPBF
LTACK
8-Lead Plastic MSOP
0°C to 70°C
LTC1992-5IMS8#PBF
LTC1992-5IMS8#TRPBF
LTACK
8-Lead Plastic MSOP
–40°C to 85°C
LTC1992-5HMS8#PBF LTC1992-5HMS8#TRPBF LTACK
8-Lead Plastic MSOP
–40°C to 125°C
LTC1992-10CMS8#PBF LTC1992-10CMS8#TRPBF LTACL
8-Lead Plastic MSOP
0°C to 70°C
LTC1992-10IMS8#PBF LTC1992-10IMS8#TRPBF LTACL
8-Lead Plastic MSOP
–40°C to 85°C
LTC1992-10HMS8#PBF LTC1992-10HMS8#TRPBF LTACL
8-Lead Plastic MSOP
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
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Linear LTC1992
LTC1992 Family
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. +VS = 5V, –VS = 0V, VINCM = VOUTCM = VOCM = 2.5V, unless otherwise
noted. VOCM is the voltage on the VOCM pin. VOUTCM is defined as (+VOUT + –VOUT)/2. VINCM is defined as (+VIN + –VIN)/2. VINDIFF is
defined as (+VIN – –VIN). VOUTDIFF is defined as (+VOUT – –VOUT). Specifications applicable to all parts in the LTC1992 family.
ALL C AND I GRADE
ALL H GRADE
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
MIN TYP MAX UNITS
VS Supply Voltage Range
IS Supply Current
VS = 2.7V to 5V
VS = ±5V
l 2.7
11
l 0.65 1.0
0.75 1.2
0.7 1.2
l 0.8 1.5
2.7 11
0.65 1.0
0.8 1.5
0.7 1.2
0.9 1.8
V
mA
mA
mA
mA
VOSDIFF
Differential Offset Voltage
(Input Referred) (Note 7)
ΔVOSDIFF/ΔT Differential Offset Voltage Drift
(Input Referred) (Note 7)
PSRR
Power Supply Rejection Ratio
(Input Referred) (Note 7)
VS = 2.7V
VS = 5V
VS = ±5V
VS = 2.7V
VS = 5V
VS = ±5V
VS = 2.7V to ±5V
l ±0.25 ±2.5
l ±0.25 ±2.5
l ±0.25 ±2.5
l 10
l 10
l 10
l 75
80
±0.25
±0.25
±0.25
±4
±4
±4
10
10
10
72 80
mV
mV
mV
μV/°C
μV/°C
μV/°C
dB
GCM
VOSCM
ΔVOSCM/ΔT
VOUTCMR
RINVOCM
IBVOCM
VMID
VOUT
Common Mode Gain(VOUTCM/VOCM)
Common Mode Gain Error
Output Balance (ΔVOUTCM/(ΔVOUTDIFF) VOUTDIFF = –2V to +2V
Common Mode Offset Voltage
(VOUTCM – VOCM)
VS = 2.7V
VS = 5V
VS = ±5V
Common Mode Offset Voltage Drift
VS = 2.7V
VS = 5V
VS = ±5V
Output Signal Common Mode Range
(Voltage Range for the VOCM Pin)
Input Resistance, VOCM Pin
Input Bias Current, VOCM Pin
VS = 2.7V to ±5V
Voltage at the VMID Pin
Output Voltage, High
(Note 2)
VS = 2.7V, Load = 10k
VS = 2.7V, Load = 5mA
VS = 2.7V, Load = 10mA
Output Voltage, Low
(Note 2)
VS = 2.7V, Load = 10k
VS = 2.7V, Load = 5mA
VS = 2.7V, Load = 10mA
Output Voltage, High
(Note 2)
VS = 5V, Load = 10k
VS = 5V, Load = 5mA
VS = 5V, Load = 10mA
Output Voltage, Low
(Note 2)
VS = 5V, Load = 10k
VS = 5V, Load = 5mA
VS = 5V, Load = 10mA
Output Voltage, High
(Note 2)
VS = ±5V, Load = 10k
VS = ±5V, Load = 5mA
VS = ±5V, Load = 10mA
Output Voltage, Low
(Note 2)
VS = ±5V, Load = 10k
VS = ±5V, Load = 5mA
VS = ±5V, Load = 10mA
l1
l ±0.1 ±0.3
l –85 –60
1
±0.1 ±0.35
–85 –60
l ±0.5 ±12
l ±1 ±15
l ±2 ±18
±0.5 ±15
±1 ±17
±2 ±20
l 10
l 10
l 10
10
10
10
l (–VS) + 0.5V
(+VS) – 1.3V (–VS) + 0.5V
(+VS) – 1.3V
l 500
l ±2
l 2.44 2.50 2.56
l 2.60 2.69
l 2.50 2.61
l 2.29 2.52
l 0.02 0.10
l 0.10 0.25
l 0.20 0.35
l 4.90 4.99
l 4.85 4.90
l 4.75 4.81
l 0.02 0.10
l 0.10 0.25
l 0.20 0.35
l 4.90 4.99
l 4.85 4.89
l 4.65 4.80
l –4.99 –4.90
l –4.90 –4.75
l –4.80 –4.65
500
±2
2.43 2.50 2.57
2.60 2.69
2.50 2.61
2.29 2.52
0.02 0.10
0.10 0.25
0.20 0.41
4.90 4.99
4.80 4.90
4.70 4.81
0.02 0.10
0.10 0.30
0.20 0.42
4.85 4.99
4.80 4.89
4.60 4.80
–4.98
–4.90
–4.80
–4.85
–4.75
–4.55
%
dB
mV
mV
mV
μV/°C
μV/°C
μV/°C
V
pA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
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