LT6203X
High Temperature 175°C
Dual 100MHz, Rail-to-Rail Input and Output,
Ultralow 1.9nV/√Hz Noise, Low Power Op Amp
FeaTures
DescripTion
n
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Extreme High Temperature Operation: –40°C to 175°C
Low Noise Voltage: 1.9nV/√Hz (100kHz)
Low Supply Current: 3mA/Amp Max
Gain Bandwidth Product: 100MHz
Low Distortion: –80dB at 1MHz
Low Offset Voltage: 500µV Max
Wide Supply Range: 2.5V to 12.6V
Inputs and Outputs Swing Rail-to-Rail
Common Mode Rejection Ratio 90dB Typ
Low Noise Current: 1.1pA/√Hz
Output Current: 30mA Min
8-Pin SO Package
Available as Dice
Down Hole Drilling and Instrumentation
Heavy Industrial
Avionics
High Temperature Environments
Low Noise, Low Power Signal Processing
Active Filters
Rail-to-Rail Buffer Amplifiers
Driving A/D Converters
DSL Receivers
Battery Powered/Battery Backed Equipment
The
LT
®
6203X
is a dual low noise, rail-to-rail input and
output unity gain stable op amp that features 1.9nV/√Hz
noise voltage and draws only 2.5mA of supply current per
amplifier. These amplifiers combine very low noise and
supply current with a 100MHz gain bandwidth product, a
25V/µs slew rate, and are optimized for low supply signal
conditioning systems.
These amplifiers maintain their performance for supplies
from 2.5V to 12.6V and are specified at 3V, 5V and ±5V
supplies. Harmonic distortion is less than – 80dBc at
1MHz making these amplifiers suitable in low power data
acquisition systems.
These devices can be used as plug-in replacements for
many op amps to improve input/output range and noise
performance.
The LT6203X is a member or a growing series of high tem-
perature qualified products offered by Linear Technology
®
.
For a complete selection of high temperature products,
please consult our website,
www.linear.com.
The LT6203X comes in an 8-pin SO package with standard
dual op amp pinout. The LT6203X is also available as dice.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
Devices, Inc. All other trademarks are the property of their respective owners.
applicaTions
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Typical applicaTion
Low Noise Differential Amplifier with Gain Adjust and Common Mode Control
R1
402
R2
200
R3
100
R4
402
R5
200
R6
100
C1
270pF
C2
22pF
C3
5pF
V
OUT+
Low Noise Differential Amplifier
Frequency Response
RELATIVE DIFFERENTIAL GAIN (1dB/DIV)
0dB
V
IN–
R7, 402
V
+
6dB
R10, 402
12dB
0dB
V
IN+
1/2 LT6203X
6dB
R
B
R8
402
0.1µF
OUTPUT V
CM
=
12dB
For more information
www.linear.com/LT6203X
+
V
+
R
A
1/2 LT6203X
–
V
OUT–
R9
402
+
–
G = 0dB
G = 6dB
G = 12dB
50k
1M
FREQUENCY (Hz)
5M
LT6203X TA01b
(
R
B
V
+
R
A
+ R
B
LT6203X TA01a
)
6203xf
1
LT6203X
absoluTe MaxiMuM raTings
(Note 1)
pin conFiguraTion
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
–
–
–
+
4
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 200°C,
θ
JA
= 190°C/W
(http://www.linear.com/product/LT6203X#orderinfo)
LEAD FREE FINISH
LT6203XS8#PBF
TAPE AND REEL
LT6203XS8#TRPBF
PART MARKING
6203X
PACKAGE DESCRIPTION
8-Lead Plastic SO
SPECIFIED
TEMPERATURE RANGE
–40°C to 175°C
orDer inForMaTion
*The temperature grade is identified by a label on the shipping container
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/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
elecTrical characTerisTics
unless otherwise noted.
V
OS
SYMBOL
PARAMETER
Input Offset Voltage
T
A
= 25°C, V
S
=5V, 0V; V
S
= 3V, 0V; V
CM
= V
OUT
= half supply,
CONDITIONS
V
S
= 5V, 0V, V
CM
= Half Supply
V
S
= 3V, 0V, V
CM
= Half Supply
V
S
= 5V, 0V, V
CM
= V
+
to V
–
V
S
= 3V, 0V, V
CM
= V
+
to V
–
MIN
TYP
0.1
0.6
0.25
1.0
0.15
0.3
–7.0
–8.8
–1.3
1.3
–3.3
4.7
0.1
MAX
0.5
1.5
2.0
3.5
0.8
1.8
2.5
11.3
0.6
UNITS
mV
mV
mV
mV
mV
mV
µA
µA
µA
µA
µA
Input Offset Voltage Match
(Channel-to-Channel) (Note 5)
I
B
∆I
B
Input Bias Current
V
CM
= Half Supply
V
CM
= V
–
to V
+
V
CM
= Half Supply
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
I
B
Shift
I
B
Match (Channel-to-Channel) (Note 5)
2
For more information
www.linear.com/LT6203X
+
Total Supply Voltage (V
+
to V
–
) .............................. 12.6V
Input Current (Note 2) ......................................... ±40mA
Output Short-Circuit Duration
(Note 3) ..........................................Thermally Limited
Operating Temperature Range (Note 4)
LT6203X ............................................ –40°C to 175°C
Junction Temperature ........................................... 200°C
Storage Temperature Range ..................–65°C to 200°C
Lead Temperature (Soldering, 10 sec)................... 300°C
+
8 V
7 OUT B
6 –IN B
5 +IN B
6203xf
LT6203X
elecTrical characTerisTics
unless otherwise noted.
I
OS
SYMBOL
PARAMETER
Input Offset Current
T
A
= 25°C, V
S
=5V, 0V; V
S
= 3V, 0V; V
CM
= V
OUT
= half supply,
CONDITIONS
V
CM
= Half Supply
V
CM
= V
+
V
CM
= V
–
0.1Hz to 10Hz
f = 100kHz, V
S
= 5V
f = 10kHz, V
S
= 5V
f = 10kHz, V
S
= 5V
Common Mode
Differential Mode
Common Mode
Differential Mode
V
S
= 5V, V
O
= 0.5V to 4.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
O
= 1V to 4V, R
L
= 100 to V
S
/2
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
CM
= V
–
to V
+
V
S
= 5V, V
CM
= 1.5V to 3.5V
V
S
= 3V, V
CM
= V
–
to V
+
V
S
= 5V, V
CM
= 1.5V to 3.5V
V
S
= 2.5V to 10V, V
CM
= 0V
V
S
= 2.5V to 10V, V
CM
= 0V
No Load
I
SINK
= 5mA
V
S
= 5V, I
SINK
= 20mA
V
S
= 3V, I
SINK
= 15mA
No Load
I
SOURCE
= 5mA
V
S
= 5V, I
SOURCE
= 20mA
V
S
= 3V, I
SOURCE
= 15mA
V
S
= 5V
V
S
= 3V
V
S
= 5V
V
S
= 3V
Frequency = 1MHz, V
S
= 5V
V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 4V
V
S
= 5V, V
OUT
= 3V
P-P
0.1%, V
S
= 5V, V
STEP
= 2V, A
V
= –1, R
L
= 1k
17
1.8
±30
±25
40
8.0
17
60
80
56
85
60
70
2.5
5
85
240
185
25
90
325
225
±45
±40
2.5
2.3
90
24
2.5
85
3.0
2.85
50
190
460
350
75
210
600
410
MIN
TYP
0.12
0.07
0.12
800
2
2.9
0.75
1.1
4
12
1.8
1.5
70
14
40
83
100
80
120
74
100
4.5
MAX
1
1
1.1
UNITS
µA
µA
µA
nV
P-P
nV/√Hz
nV/√Hz
pA/√Hz
pA/√Hz
MΩ
kΩ
pF
pF
V/mV
V/mV
V/mV
dB
dB
dB
dB
dB
dB
V
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
MHz
V/µs
MHz
ns
Input Noise Voltage
e
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i
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Input Noise Voltage Density
Input Noise Current Density, Balanced
Input Noise Current Density, Unbalanced
Input Resistance
C
IN
A
VOL
CMRR
Input Capacitance
Large Signal Gain
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 5)
PSRR
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 5)
Minimum Supply Voltage (Note 6)
V
OL
Output Voltage Swing LOW Saturation
(Note 7)
V
OH
Output Voltage Swing HIGH Saturation
(Note 7)
I
SC
I
S
GBW
SR
FPBW
t
S
Short-Circuit Current
Supply Current per Amp
Gain Bandwidth Product
Slew Rate
Full Power Bandwidth (Note 9)
Settling Time
6203xf
For more information
www.linear.com/LT6203X
3
LT6203X
elecTrical characTerisTics
SYMBOL PARAMETER
V
OS
Input Offset Voltage
The
l
denotes the specifications which apply over –40°C < T
A
< 175°C
temperature range. V
S
= 5V, 0V; V
S
= 3V, 0V; V
CM
= V
OUT
= half supply, unless otherwise noted. (Note 4)
CONDITIONS
V
S
= 5V, 0V, V
CM
= Half Supply
V
S
= 3V, 0V, V
CM
= Half Supply
V
S
= 5V, 0V, V
CM
= V
+
to V
–
V
S
= 3V, 0V, V
CM
= V
+
to V
–
V
OS
TC
Input Offset Voltage Drift (Note 8)
Input Offset Voltage Match
(Channel-to-Channel) (Note 5)
I
B
∆I
B
I
OS
A
VOL
Input Bias Current
V
CM
= Half Supply
V
CM
= Half Supply
V
CM
= V
–
to V
+
V
CM
= Half Supply
V
CM
= V
+
V
CM
= V
–
+ 100mV
V
CM
= V
–
+ 100mV to V
+
V
CM
= Half Supply
V
CM
= V
+
V
CM
= V
–
+ 100mV
V
S
= 5V, V
O
= 0.5V to 4.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
O
= 1.5V to 3.5V, R
L
= 100 to
V
S
/2
V
S
= 3V, V
O
= 0.5V to 2.5V, R
L
= 1k to V
S
/2
V
S
= 5V, V
CM
= V
–
to V
+
V
S
= 5V, V
CM
= 1.5V to 3.5V
V
S
= 3V, V
CM
= V
–
to V
+
V
S
= 5V, V
CM
= 1.5V to 3.5V
V
S
= 3V to 10V, V
CM
= 0V
V
S
= 3V to 10V, V
CM
= 0V
No Load
I
SINK
= 5mA
I
SINK
= 15mA
No Load
I
SOURCE
= 5mA
V
S
= 5V, I
SOURCE
= 15mA
V
S
= 3V, I
SOURCE
= 15mA
V
S
= 5V
V
S
= 3V
V
S
= 5V
V
S
= 3V
Frequency = 1MHz
V
S
= 5V, A
V
= –1, R
L
= 1k, V
O
= 4V
V
S
= 5V, V
OUT
= 3V
P-P
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
l
l
l
l
l
l
l
l
MIN
TYP
0.2
0.6
1.0
1.4
3.0
0.3
0.7
MAX
1.6
2.0
5.0
4.5
9.0
1.5
4.0
7.0
16.0
1.5
1.1
1.6
1.7
UNITS
mV
mV
mV
mV
µV/°C
mV
mV
µA
µA
µA
µA
µA
µA
µA
µA
V/mV
V/mV
V/mV
dB
dB
dB
dB
dB
dB
V
–7.4
–14.0
–1.3
1.3
–3.3
4.7
0.1
0.2
0.2
0.2
I
B
Shift
I
B
Match (Channel-to-Channel) (Note 5)
Input Offset Current
Large Signal Gain
29
3.7
12
60
75
50
80
60
70
3.0
60
10
32
80
95
75
100
70
100
6
95
210
55
125
370
270
70
220
420
175
255
650
670
CMRR
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 5)
PSRR
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 5)
Minimum Supply Voltage (Note 6)
V
OL
V
OH
Output Voltage Swing LOW Saturation
(Note 7)
Output Voltage Swing HIGH Saturation
(Note 7)
mV
mV
mV
mV
mV
mV
mV
mA
mA
I
SC
I
S
GBW
SR
FPBW
Short-Circuit Current
Supply Current per Amp
Gain Bandwidth Product
Slew Rate
Full Power Bandwidth (Note 9)
±15
±15
±25
±23
3.3
3.0
83
6.0
5.3
mA
mA
MHz
V/µs
MHz
12
1.3
17
1.8
4
6203xf
For more information
www.linear.com/LT6203X
LT6203X
elecTrical characTerisTics
SYMBOL PARAMETER
V
OS
Input Offset Voltage
T
A
= 25°C, V
S
= ±5V; V
CM
= V
OUT
= 0V, unless otherwise noted.
MIN
TYP
1.0
2.6
2.3
0.2
0.4
–7.0
–9.5
–1.3
1.3
–3.8
5.3
0.1
0.15
0.2
0.35
800
1.9
2.8
0.75
1.1
4
12
1.8
1.5
75
11
65
85
85
60
70
130
19
85
98
120
74
100
5
87
245
40
95
320
±30
±40
2.8
3.5
100
25
2.6
78
0.05
0.03
50
190
460
95
210
600
4.5
MAX
2.5
5.5
5.0
1.0
2.0
3.0
12.5
0.6
1
1.2
1.3
UNITS
mV
mV
mV
mV
mV
µA
µA
µA
µA
µA
µA
µA
µA
nV
P-P
nV/√Hz
nV/√Hz
pA/√Hz
pA/√Hz
MΩ
kΩ
pF
pF
V/mV
V/mV
dB
dB
dB
dB
dB
mV
mV
mV
mV
mV
mV
mA
mA
MHz
V/µs
MHz
ns
%
DEG
CONDITIONS
V
CM
= 0V
V
CM
= V
+
V
CM
= V
–
V
CM
= 0V
V
CM
= V
–
to V
+
V
CM
= Half Supply
V
CM
= V
+
V
CM
= V
–
V
CM
= V
–
to V
+
V
CM
= Half Supply
V
CM
= V
+
V
CM
= V
–
0.1Hz to 10Hz
f = 100kHz
f = 10kHz
f = 10kHz
Common Mode
Differential Mode
Common Mode
Differential Mode
V
O
= ±4.5V, R
L
= 1k
V
O
= ±2.5V, R
L
= 100
V
CM
= V
–
to V
+
V
CM
= –2V to 2V
V
CM
= –2V to 2V
V
S
= ±1.25V to ±5V
V
S
= ±1.25V to ±5V
No Load
I
SINK
= 5mA
I
SINK
= 20mA
No Load
I
SOURCE
= 5mA
I
SOURCE
= 20mA
Input Offset Voltage Match
(Channel-to-Channel) (Note 5)
I
B
Input Bias Current
∆I
B
I
OS
I
B
Shift
I
B
Match (Channel-to-Channel) (Note 5)
Input Offset Current
Input Noise Voltage
e
n
i
n
Input Noise Voltage Density
Input Noise Current Density, Balanced
Input Noise Current Density, Unbalanced
Input Resistance
C
IN
A
VOL
CMRR
Input Capacitance
Large Signal Gain
Common Mode Rejection Ratio
CMRR Match (Channel-to-Channel) (Note 5)
PSRR
V
OL
Power Supply Rejection Ratio
PSRR Match (Channel-to-Channel) (Note 5)
Output Voltage Swing LOW Saturation
(Note 7)
Output Voltage Swing HIGH Saturation
(Note 7)
Short-Circuit Current
Supply Current per Amp
Gain Bandwidth Product
Slew Rate
Full Power Bandwidth (Note 9)
Settling Time
Differential Gain (Note 10)
Differential Phase (Note 10)
V
OH
I
SC
I
S
GBW
SR
FPBW
t
S
dG
dP
Frequency = 1MHz
A
V
= –1, R
L
= 1k, V
O
= 4V
V
OUT
= 3V
P-P
0.1%, V
STEP
= 2V, A
V
= –1, R
L
= 1k
A
V
= 2, R
F
= R
G
= 499Ω, R
L
= 2k
A
V
= 2, R
F
= R
G
= 499Ω, R
L
= 2k
70
18
1.9
6203xf
For more information
www.linear.com/LT6203X
5
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