LTC6363 Family
Precision, Low Power Differential
Amplifier/ADC Driver Family
FEATURES
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DESCRIPTION
The
LTC
®
6363
family consists of four fully differential,
low power, low noise amplifiers with rail-to-rail outputs
optimized to drive SAR ADCs. The LTC6363 is a standalone
differential amplifier, where the gain is typically set using
four external resistors. The LTC6363-0.5, LTC6363-1, and
LTC6363-2 each have internal matched resistors to create
fixed gain blocks with gains of 0.5V/V, 1V/V, and 2V/V
respectively. Each of the fixed-gain amplifiers features
precision laser trimmed on-chip resistors for accurate,
ultrastable gain and excellent CMRR.
Family Selection Table
PART NUMBER
GAIN
+IN
–IN
Available with User Settable Gain or Fixed-Gain
of 0.5V/V, 1V/V, or 2V/V
2.9nV/√Hz Input-Referred Noise
2mA Maximum Supply Current
45ppm Max Gain Error
0.5ppm/°C Max Gain Error Drift
94dB Min CMRR
100µV Max Offset Voltage
50nA Max Input Offset Current
Fast Settling: 720ns to 18-Bit, 8V
P-P
Output
2.8V (±1.4V) to 11V (±5.5V) Supply Voltage Range
Differential Rail-to-Rail Outputs
Input Common Mode Range Includes Ground
Low Distortion: 118dB SFDR at 2kHz, 18V
P-P
500MHz Gain-Bandwidth Product
35MHz –3dB Bandwidth
Low Power Shutdown: 20µA (V
S
= 3V)
8-Lead MSOP, 2mm × 3mm 8-Lead DFN and 3mm x
3mm 16-lead LFCSP Packages
20-Bit, 18-Bit and 16-Bit SAR ADC Drivers
Single-Ended-to-Differential Conversion
Low Power ADC Drivers
Level Shifter
Differential Line Drivers
Battery-Powered Instrumentation
CONFIGURATION
LTC6363
User Set
+
–
R
F
–OUT
+OUT
LTC6363-0.5
LTC6363-1
LTC6363-2
0.5V/V
1V/V
2V/V
+IN
–IN
R
I
APPLICATIONS
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R
I
+
–
R
F
–OUT
+OUT
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
DC-Coupled Interface from a Ground-Referenced
Single-Ended Input to an LTC2378-20 SAR ADC
6V
V
+
+IN 1050
V
IN
V
OCM
0.1µF
–IN 1050
V
+
LTC6363-1
–OUT
1050
LTC6363-1 Driving LTC2378-20
f
IN
= 2kHz, –1dBFS,131k-Point FFT
0
–20
V
S
= 6V, –1V
V
OUTDIFF
= 8.9V
P-P
HD2 = –119.5dBc
HD3 = –128.3dBc
SFDR = 118.3dB
THD = –115.3dB
SNR = 102dB
SINAD = 101.8dB
AMPLITUDE (dBFS)
30.1
3.3nF
5V
V
REF
2.5V
V
DD
–40
–60
–80
–100
–120
–140
–160
0
+
3.3nF
–
V
–
SHDN
6V
–1V
1050
V
–
+OUT
30.1
3.3nF
A
IN+
LTC2378-20
SAR ADC
A
IN–
GND
20-BIT
1Msps
6363 TA01a
50 100 150 200 250 300 350 400 450 500
FREQUENCY (kHz)
6363 TA01b
Rev. C
For more information
www.analog.com
1
LTC6363 Family
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Total Supply Voltage (V
+
– V
–
) ..................................12V
Input Voltage (+IN, –IN) (Note 2)
LTC6363-0.5 ................... (V
–
) – 14.9V to (V
+
) + 14.9V
LTC6363-1 ........................(V
–
) – 11.1V to (V
+
) + 11.1V
LTC6363-2 ...................... (V
–
) – 7.45V to (V
+
) + 7.45V
Input Current (+IN, –IN) LTC6363 (Note 3) .......... ±10mA
Input Current (V
OCM
,
SHDN)
(Note 3) .................. ±10mA
Output Short-Circuit Duration
(Note 4) ..........................................Thermally Limited
Operating Temperature Range (Note 5)
LTC6363I/LTC6363I-0.5/LTC6363I-1/
LTC6363I-2 ..........................................–40°C to 85°C
LTC6363H/LTC6363H-0.5/LTC6363H-1/
LTC6363H-2 ...................................... –40°C to 125°C
Specified Temperature Range (Note 6)
LTC6363I/LTC6363I-0.5/LTC6363I-1/
LTC6363I-2 ..........................................–40°C to 85°C
LTC6363H/LTC6363H-0.5/LTC6363H-1/
LTC6363H-2 ...................................... –40°C to 125°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range .................. –65°C to 150°C
MSOP Lead Temperature (Soldering, 10 sec)........ 300°C
PIN CONFIGURATION
LTC6363
LTC6363
TOP VIEW
TOP VIEW
–IN
V
OCM
V
+
+OUT
1
2
3
4
– +
+–
8
7
6
5
+IN
SHDN
V
–
–OUT
–IN 1
V
OCM
2
V
+
3
+OUT 4
9
V
–
– +
+–
8 +IN
7
SHDN
6 V
–
5 –OUT
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 273°C/W
DCB PACKAGE
8-LEAD (2mm
×
3mm) PLASTIC DFN
T
JMAX
= 150°C,
θ
JA
= 64°C/W,
θ
JC
= 10.6°C/W
EXPOSED PAD (PIN 9) MUST BE CONNECTED TO V
–
LTC6363-0.5/LTC6363-1/LTC6363-2
TOP VIEW
V
–
V
–
V
–
V
–
TOP VIEW
–IN 1
V
OCM
2
V
+
3
+OUT 4
8
7
6
5
+IN
SHDN
V
–
–OUT
16 15 14 13
–FB 1
+IN 2
–IN 3
+FB 4
5
+
12
SHDN
– +
+–
+–
–+
6
+
11 –OUT
17
7
+
10 +OUT
9 V
OCM
8
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 273°C/W
V V V V
+
LFCSP PACKAGE
16-LEAD (3mm
×
3mm) PLASTIC LFCSP
T
JMAX
= 150°C,
θ
JA
= 81.2°C/W,
θ
JC
= 39.7°C/W
EXPOSED PAD (PIN 17) MUST BE CONNECTED TO V
–
OR GROUND
Rev. C
2
For more information
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LTC6363 Family
ORDER INFORMATION
TUBE
LTC6363IMS8#PBF
LTC6363HMS8#PBF
LTC6363IMS8-0.5#PBF
LTC6363HMS8-0.5#PBF
LTC6363IMS8-1#PBF
LTC6363HMS8-1#PBF
LTC6363IMS8-2#PBF
LTC6363HMS8-2#PBF
TAPE AND REEL
LTC6363IMS8#TRPBF
LTC6363HMS8#TRPBF
LTC6363IMS8-0.5#TRPBF
LTC6363IMS8-1#TRPBF
LTC6363HMS8-1#TRPBF
LTC6363IMS8-2#TRPBF
LTC6363HMS8-2#TRPBF
TAPE AND REEL
LTC6363IDCB#TRPBF
LTC6363HDCB#TRPBF
LTC6363IRD#TRPBF
LTC6363HRD#TRPBF
PART MARKING*
LTGSQ
LTGSQ
LTGST
LTGSR
LTGSR
LTGSS
LTGSS
PART MARKING*
LGVG
LGVG
LHJW
LHJW
PACKAGE DESCRIPTION
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
8-Lead Plastic MSOP
PACKAGE DESCRIPTION
8-Lead (2mm × 3mm) Plastic DFN
8-Lead (2mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
LTC6363HMS8-0.5#TRPBF LTGST
Lead Free Finish
TAPE AND REEL (MINI)
LTC6363IDCB#TRMPBF
LTC6363HDCB#TRMPBF
LTC6363IRD#PBF
LTC6363HRD#PBF
16-Lead (3mm × 3mm) Plastic LFCSP –40°C to 85°C
16-Lead (3mm × 3mm) Plastic LFCSP –40°C to 125°C
TRM = 500 pieces. *Temperature grades are identified by a label on the shipping container.
Contact the factory for parts specified with wider operating temperature ranges.
Contact the factory for information on lead based finish parts.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
Complete LTC6363 Family. The
l
denotes the specifications which apply
over the full operating temperature range, otherwise specifications and typical values are at T
A
= 25°C. V
+
= 10V, V
–
= 0V, V
CM
=
V
OCM
= V
ICM
= 5V, V
SHDN
= open. V
S
is defined as (V
+
– V
–
). V
OUTCM
is defined as (V
+OUT
+ V
–OUT
)/2. V
ICM
is defined as (V
+IN
+ V
–IN
)/2.
V
OUTDIFF
is defined as (V
+OUT
– V
–OUT
).
SYMBOL
PSRR (Note 7)
PSRRCM (Note 7)
GCM
PARAMETER
Differential Power Supply Rejection
(∆V
S
/∆V
OSDIFF
)
CONDITIONS
V
S
= 2.8V to 11V
l
l
l
l
l
l
l
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ELECTRICAL CHARACTERISTICS
MIN
90
70
TYP
125
90
1
1
1
0.2
0.1
0.07
–58
–58
±1
±1
±1
10
MAX
UNITS
dB
dB
V/V
V/V
V/V
Output Common Mode Power Supply Rejection V
S
= 2.8V to 11V
(∆V
S
/∆V
OSCM
)
Common Mode Gain (∆V
OUTCM
/∆V
OCM
)
Common Mode Gain Error 100 • (GCM – 1)
V
S
= 3V, V
OCM
from 0.5V to 2.5V
V
S
= 5V, V
OCM
from 0.5V to 4.5V
V
S
= 10V, V
OCM
from 0.5V to 9.5V
V
S
= 3V, V
OCM
from 0.5V to 2.5V
V
S
= 5V, V
OCM
from 0.5V to 4.5V
V
S
= 10V, V
OCM
from 0.5V to 9.5V
∆V
OUTDIFF
= 2V
Single-Ended Input
Differential Input
V
S
= 3V
V
S
= 5V
V
S
= 10V
V
OCM
Driven Externally, V
S
= 3V
V
OCM
Driven Externally, V
S
= 5V
V
OCM
Driven Externally, V
S
= 10V
∆GCM
1
0.5
0.4
–35
–35
±6
±6
±6
2.5
4.5
9.5
%
%
%
dB
dB
mV
mV
mV
μV/°C
V
V
V
Rev. C
BAL
Output Balance (∆V
OUTCM
/∆V
OUTDIFF
)
Common Mode Offset Voltage
(V
OUTCM
– V
OCM
)
Common Mode Offset Voltage Drift
Output Signal Common Mode Range
(Voltage Range for the V
OCM
Pin)
V
OSCM
∆V
OSCM
/∆T
V
OUTCMR
(Note 9)
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0.5
0.5
0.5
For more information
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3
LTC6363 Family
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OCM
R
INVOCM
V
S
I
S
PARAMETER
Self-Biased Voltage at the V
OCM
Pin
Input Resistance, V
OCM
Pin
V
OCM
Bandwidth
Supply Voltage Range
Supply Current
Guaranteed by PSRR
V
S
= 3V, Active
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l
Complete LTC6363 Family. The
l
denotes the specifications which apply
over the full operating temperature range, otherwise specifications and typical values are at T
A
= 25°C. V
+
= 10V, V
–
= 0V, V
CM
=
V
OCM
= V
ICM
= 5V, V
SHDN
= open. V
S
is defined as (V
+
– V
–
). V
OUTCM
is defined as (V
+OUT
+ V
–OUT
)/2. V
ICM
is defined as (V
+IN
+ V
–IN
)/2.
V
OUTDIFF
is defined as (V
+OUT
– V
–OUT
).
CONDITIONS
V
OCM
Not Connected, V
S
= 3V
V
OCM
Not Connected, V
S
= 5V
V
OCM
Not Connected, V
S
= 10V
l
l
l
l
MIN
1.38
2.33
4.79
1.3
2.8
TYP
1.5
2.5
5
1.8
15
MAX
1.82
2.82
5.21
2.3
11
UNITS
V
V
V
MΩ
MHz
V
mA
mA
µA
mA
mA
µA
mA
mA
µA
V
V
μs
μs
1.7
l
l
1.8
1.95
40
1.85
2
65
2
2.2
V
S
= 3V, Shutdown
V
S
= 5V, Active
V
S
= 5V, Shutdown
V
S
= 10V, Active
20
1.75
l
l
30
1.9
V
S
= 10V, Shutdown
V
IL
V
IH
t
ON
t
OFF
R
SHDN
SHDN
Input Logic Low
SHDN
Input Logic High
Turn-On Time
Turn-Off Time
Input Resistance,
SHDN
Pin
l
l
l
70
130
(V+ + V–)/2 + 0.4
(V+ + V–)/2 + 1.2
4
2
l
300
500
700
kΩ
LTC6363 Only. The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications
and typical values are at T
A
= 25°C. V
+
= 10V, V
–
= 0V, V
CM
= V
OCM
= V
ICM
= 5V, V
SHDN
= open. V
S
is defined as (V
+
– V
–
). V
OUTCM
is
defined as (V
+OUT
+ V
–OUT
)/2. V
ICM
is defined as (V
+IN
+ V
–IN
)/2. V
OUTDIFF
is defined as (V
+OUT
– V
–OUT
). Typical specifications apply to
the internal amplifier inside all versions.
SYMBOL
V
OSDIFF
(Note 7)
PARAMETER
Differential Offset Voltage
CONDITIONS
V
S
= 3V
V
ICM
=1.5V
V
S
= 5V
V
ICM
= 2.5V
V
S
= 10V
V
ICM
= 5V
∆V
OSDIFF
/∆T
(Notes 7, 8)
A
VOL
I
B
(Note 10)
I
OS
(Note 10)
Open-Loop Voltage Gain
Input Bias Current
V
S
= 3V
V
S
= 5V
V
S
= 10V
V
S
= 3V
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l
l
l
l
MIN
TYP
25
25
MAX
100
200
100
200
100
200
1.25
1.25
1.25
–0.1
–0.1
–0.1
±50
±75
±50
±75
±50
±75
UNITS
µV
µV
µV
µV
µV
µV
µV/°C
µV/°C
µV/°C
dB
µA
µA
µA
nA
nA
nA
nA
nA
nA
Rev. C
l
25
l
l
l
l
Differential Offset Voltage Drift
V
S
= 3V
V
S
= 5V
V
S
= 10V
0.45
0.45
0.45
125
–1
–1
–1
–0.5
–0.5
–0.5
±5
±5
Input Offset Current
V
S
= 5V
l
V
S
= 10V
l
±5
4
For more information
www.analog.com
LTC6363 Family
LTC6363 Only. The
l
denotes the specifications which apply over the full
operating temperature range, otherwise specifications and typical values are at T
A
= 25°C. V
+
= 10V, V
–
= 0V, V
CM
= V
OCM
= V
ICM
=
5V, V
SHDN
= open. V
S
is defined as (V
+
– V
–
). V
OUTCM
is defined as (V
+OUT
+ V
–OUT
)/2. V
ICM
is defined as (V
+IN
+ V
–IN
)/2. V
OUTDIFF
is
defined as (V
+OUT
– V
–OUT
). Typical specifications apply to the internal amplifier inside all versions.
SYMBOL
∆I
OS
/∆T (Note 8)
R
IN
C
IN
e
n
(Note 7)
e
nvocm
i
n
V
ICMR
(Note 9)
CMRRI (Note 7)
PARAMETER
Input Offset Current Drift
CONDITIONS
V
S
= 3V
V
S
= 5V
V
S
= 10V
Common Mode
Differential Mode
Differential Mode
0.1Hz to 10Hz
f = 100kHz (Not Including R
I
/R
F
)
f = 100kHz
f = 100kHz (Not Including R
I
/R
F
)
V
S
= 3V
V
S
= 5V
V
S
= 10V
V
S
= 3V, V
ICM
from 0V to 1.8V
V
S
= 5V, V
ICM
from 0V to 3.8V
V
S
= 10V, V
ICM
from 0V to 8.8V
V
S
= 3V, V
OCM
from 0.5V to 2.5V
V
S
= 5V, V
OCM
from 0.5V to 4.5V
V
S
= 10V, V
OCM
from 0.5V to 9.5V
I
L
= 0mA, V
S
= 3V
I
L
= –5mA, V
S
= 3V
I
L
= 0mA, V
S
= 5V
I
L
= –5mA, V
S
= 5V
I
L
= 0mA, V
S
= 10V
I
L
= –5mA, V
S
= 10V
Output Voltage, Low, Either Output Pin
I
L
= 0mA, V
S
= 3V
I
L
= 5mA, V
S
= 3V
I
L
= 0mA, V
S
= 5V
I
L
= 5mA, V
S
= 5V
I
L
= 0mA, V
S
= 10V
I
L
= 5mA, V
S
= 10V
I
SC
Output Short-Circuit Current, Either
Output Pin, Sinking
Output Short-Circuit Current, Either
Output Pin, Sourcing
GBW
f
–3dB
SR
FPBW (Note 11)
HD2/HD3
Gain-Bandwidth Product
–3dB Bandwidth
Slew Rate
Full Power Bandwidth
2nd/3rd Order Harmonic Distortion
Single-Ended Input
V
S
= 3V, Output Shorted to 1.5V
V
S
= 5V, Output Shorted to 2.5V
V
S
= 10V, Output Shorted to 5V
V
S
= 3V, Output Shorted to 1.5V
V
S
= 5V, Output Shorted to 2.5V
V
S
= 10V, Output Shorted to 5V
f
TEST
= 200kHz
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
ELECTRICAL CHARACTERISTICS
MIN
TYP
±30
±30
±30
50
40
2
2.5
2.9
20
0.55
MAX
±150
±150
±150
UNITS
pA/°C
pA/°C
pA/°C
MΩ
kΩ
pF
µV
P-P
nV/√Hz
nV/√Hz
pA/√Hz
Input Resistance
Input Capacitance
Differential Input Noise Voltage
Differential Input Noise Voltage Density
Common Mode Noise Voltage Density
Input Noise Current Density
Input Common Mode Range
0
0
0
78
85
90
70
80
90
2.8
2.75
4.8
4.75
9.8
9.7
110
115
120
120
120
120
2.88
2.83
4.88
4.83
9.88
9.83
0.1
0.15
0.1
0.15
0.1
0.15
12
13
14
25
27
30
390
230
25
35
40
55
75
90
500
35
75
2.4
1.3
–123/–128
–120/–108
–92/–85
1.8
3.8
8.8
V
V
V
dB
dB
dB
dB
dB
dB
V
V
V
V
V
V
Input Common Mode Rejection Ratio
(Input Referred) ∆V
ICM
/∆V
OSDIFF
Output Common Mode Rejection Ratio
(Input Referred) ∆V
OCM
/∆V
OSDIFF
Output Voltage, High, Either Output Pin
CMRRIO (Note 7)
V
OUT
0.15
0.25
0.15
0.25
0.2
0.3
V
V
V
V
V
V
mA
mA
mA
mA
mA
mA
MHz
MHz
MHz
V/μs
MHz
MHz
dBc
dBc
dBc
R
I
= R
F
=1k
Differential 18V
P-P
Output
10V
P-P
Output
18V
P-P
Output
f = 1kHz, V
OUT
= 18V
P-P
f = 10kHz, V
OUT
= 18V
P-P
f = 100kHz, V
OUT
= 18V
P-P
Rev. C
For more information
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5
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