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LT1462CS8#PBF

P1-P3P4-P6P7-P9P10-P12
1
LT1462/LT1463
Dual/Quad Micropower,
260µW C-Load Picoampere
Bias Current JFET Input Op Amps
■
Input Bias Current:
2pA Max (LT1462A)
20pA Max (LT1462, LT1463)
■
Supply Current per Amplifier: 45
µ
A Max
■
Unity-Gain Stable for C-Load
TM
Up to 10nF
■
Input Common Mode Range Includes Positive Rail
■
Guaranteed Specs with ±5V, ±15V Supplies
■
Gain Bandwidth Product: 175kHz Typ
■
Slew Rate: 0.13V/µs Typ
■
Guaranteed Matching Specifications
■
Standard Pinout: SO-8, SO-14 Package
The LT
®
1462 (dual) and LT1463 (quad) are the first
micropower op amps (45µA max per amp) to offer
picoampere input bias currents (1pA typ) and unity gain
stability for capacitive loads up to 10nF. The output can
swing a 10k load to within 1.5V of either supply, just like
op amps that require an order of magnitude more supply
current. This unique combination of performance makes
the LT1462/LT1463 ideal over a wide range of input and
output impedances.
In the design and testing of the LT1462/LT1463, particular
emphasis has been placed on optimizing performance in
the low cost SO-8 (dual) and 14-lead SO package (quad) for
±15V and ±5V supplies. The input common mode range
includes the positive rail. Slew rate (0.08V/µs min) and gain
bandwidth product (125kHz min) are 100% tested. A full set
of matching specifications is also provided.
FEATURES
DESCRIPTION
U
TYPICAL APPLICATION
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
–
+
–
+
–
+
–
+
R3
10k
C4
10µF
R11
1M
1/4 LT1463
8
10
9
R12
10k
R10
50k
R6
100k
D3
1N4148
R7
10M
R5
24k
C5
200pF
AMP 3
1/4 LT1463
DC
OUT
C3
0.47µF
5
6
7
R3
100k
D2
1N4148
R4
10M
1/4 LT1463
1/4 LT1463
C2
200pF
R2
24k
14
12
13
2
3
4
11
1
5V
–5V
R1
100Ω
PHOTODIODE
C1
1nF
D1
1N4148
R8
100k
Q1
2N3904
C5
1µF
R9
1M
1462 • TA01
AC
OUT
INPUT DC OUTPUT
CURRENT VOLTAGE OF AMP 3
10pA –0.145V
100pA –0.341V
1nA –0.518V
10nA –0.684V
100nA –0.846V
1µA –0.995V
10µA –1.13V
100 µA –1.25V
1mA –1.37V
Low Power Logging Amplifier
A
V
= 1
V
S
= ±5V, ±15V
C
L
= 10nF
1462 • TA02
C-Load is a trademark of Linear Technology Corporation.
Small-Signal Response, C
L
= 10nF
■
Battery-Powered Systems
■
Photocurrent Amplifiers
■
Low Frequency, Micropower Active Filters
■
Low Droop Track-and-Hold Circuits
APPLICATIONS
U
2
LT1462/LT1463
ABSOLUTE MAXIMUM RATINGS
W
WW
U
Supply Voltage ..................................................... ±20V
Differential Input Voltage ....................................... ±40V
Input Current ....................................................... 20mA
Output Short-Circuit Duration......................... Indefinite
Operating Temperature Range ............... –40°C to 85°C
Specified Temperature Range................ –40°C to 85°C
Maximum Junction Temperature ......................... 150°C
Storage Temperature Range ................ –65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
W
U
U
ORDER PART
NUMBER
LT1463CN
LT1463CS
ORDER PART
NUMBER
LT1462ACN8
LT1462ACS8
LT1462CN8
LT1462CS8
1462
1462A
ELECTRICAL CHARACTERISTICS
V
S
= ±15V, V
CM
= 0V, T
A
= 25°C, unless otherwise noted.
LT1462AC LT1462C/LT1463C
SYMBOL PARAMETER CONDITIONS (Note 1) MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
S
= ±5V 0.4 0.8 0.4 0.8 mV
V
S
= ±15V 0.6 2.0 0.6 2.0 mV
I
OS
Input Offset Current V
S
= ±5V 0.3 1.2 pA
V
S
= ±15V 0.5 2.0 0.5 15 pA
I
B
Input Bias Current V
S
= ±5V ±0.5 ±2.0 pA
V
S
= ±15V ±1 ±3.0 ± 1 ±20 pA
e
n
Input Noise Voltage 0.1Hz to 10Hz 2 2 µV
P-P
Input Noise Voltage Density f
O
= 10Hz 92 92 nV/√Hz
f
O
= 1000Hz 76 76 nV/√Hz
Input Noise Current Density f
O
= 10Hz, 1kHz (Note 3) 0.5 0.5 fA/√Hz
CMRR Common Mode Rejection Ratio V
CM
= –12.5V to 15V 76 89 74 89 dB
PSRR Power Supply Rejection Ratio V
S
= ±2.5V to ±20V 81 90 78 90 dB
R
IN
Input Resistance—Differential 10
12
10
12
Ω
Common Mode V
CM
= –12.5V to 8V 10
12
10
12
Ω
Common Mode V
CM
= 8V to 15V 10
11
10
11
Ω
C
IN
Input Capacitance 3 3 pF
A
VOL
Large-Signal Voltage Gain V
O
= ±10V, R
L
= 10k 100 600 100 600 V/mV
V
S
= ±5V, V
O
= ±2V, R
L
= 10k 50 200 50 200 V/mV
1
2
3
4
8
7
6
5
TOP VIEW
V
+
OUT B
–IN B
+IN B
OUT A
–IN A
+IN B
V
–
S8 PACKAGE
8-LEAD PLASTIC SO
N8 PACKAGE
8-LEAD PDIP
B
A
T
JMAX
= 150°C, θ
JA
= 130°C/ W (N)
T
JMAX
= 150°C, θ
JA
= 190°C/ W (S)
TOP VIEW
S PACKAGE
14-LEAD PLASTIC SO
N PACKAGE
14-LEAD PDIP
1
2
3
4
5
6
7
14
13
12
11
10
9
8
OUT A
–IN A
+IN A
V
+
+IN B
–IN B
OUT B
OUT D
–IN D
+IN D
V
–
+IN C
–IN C
OUT C
A
B
D
C
T
JMAX
= 150°C, θ
JA
= 110°C/ W (N)
T
JMAX
= 150°C, θ
JA
= 150°C/ W (S)
Consult factory for Industrial and Military grade parts.
S8 PART MARKING
3
LT1462/LT1463
ELECTRICAL CHARACTERISTICS
V
S
= ±15V, V
CM
= 0V, T
A
= 25°C, unless otherwise noted.
V
S
= ±15V, V
CM
= 0V, 0°C ≤ T
A
≤ 70°C, unless otherwise noted.
LT1462AC LT1462C/LT1463C
SYMBOL PARAMETER CONDITIONS (Note 1) MIN TYP MAX MIN TYP MAX UNITS
V
OUT
Output Voltage Swing R
L
= 10k ±13.5 ±13.7 ±13.5 ±13.7 V
R
L
= 2k ±11.0 ±12.4 ±11.0 ±12.4 V
V
S
= ±5V, R
L
= 2k ±3.5 ±3.7 ±3.5 ±3.7 V
I
O
Output Current ±13 ±17 ±13 ±17 mA
SR Slew Rate R
L
= 10k (Note 4) 0.08 0.13 0.08 0.13 V/µs
GBW Gain Bandwidth Product f = 10kHz 125 175 125 175 kHz
I
S
Supply Current per Amplifier 28 45 28 45 µA
V
S
= ±5V 26 43 26 43 µA
Channel Separation f = 10Hz, V
O
= ±10V, R
L
= 10k 132 132 dB
V
OS
Offset Voltage Match (Note 7) V
S
= ±5V 0.5 1.3 0.5 1.3 mV
V
S
= ±15V 0.8 3.0 0.8 3.0 mV
∆I
B
+
Noninverting Bias Current Match V
S
= ±5V 0.4 3.0 pA
(Note 7) V
S
= ±15V 0.5 4.0 0.5 20 pA
∆CMRR Common Mode Rejection Match (Notes 5, 7) 74 85 72 85 dB
∆PSRR Power Supply Rejection Match (Notes 5, 7) 78 88 76 88 dB
LT1462AC LT1462C/LT1463C
SYMBOL PARAMETER CONDITIONS (Note 1) MIN TYP MAX MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
S
= ±5V ● 0.5 1.4 0.5 1.4 mV
V
S
= ±15V ● 0.9 2.8 0.9 2.8 mV
∆V
OS
Average Input Offset Voltage Drift (Note 6) ● 720 720µV/°C
∆Temp
I
OS
Input Offset Current ● 10 50 25 450 pA
I
B
Input Bias Current ● 60 150 150 750 pA
CMRR Common Mode Rejection Ratio V
CM
= –12V to 15V ● 75 88 72 88 dB
PSRR Power Supply Rejection Ratio V
S
= ±3V to ±20V ● 80 89 76 89 dB
A
VOL
Large-Signal Voltage Gain V
O
= ±10V, R
L
= 10k ● 90 600 90 600 V/mV
V
S
= ±5V, V
O
= ±2V, R
L
= 2k ● 45 140 45 140 V/mV
I
O
Output Current ● ±11 ±14 ±11 ±14 mA
V
OUT
Output Voltage Swing R
L
= 10k ● ±13.4 ±13.6 ±13.4 ±13.6 V
R
L
= 2k ● ±10.5 ±12.1 ±10.5 ±12.1 V
V
S
= ±5V, R
L
= 2k ● ±3.4 ±3.6 ±3.4 ±3.6 V
SR Slew Rate R
L
= 10k (Note 4) ● 0.075 0.128 0.075 0.128 V/µs
GBW Gain Bandwidth Product f = 10kHz ● 100 140 100 140 kHz
I
S
Supply Current per Amplifier ● 31 45 31 45 µA
V
S
= ±5V ● 28 43 28 43 µA
V
OS
Offset Voltage Match (Note 7) V
S
= ±5V ● 0.7 2.0 0.7 2.0 mV
V
S
= ±15V ● 0.9 3.5 0.9 3.5 mV
∆I
B
+
Noninverting Bias Current Match ● 5 40 35 500 pA
(Note 7)
P1-P3P4-P6P7-P9P10-P12

LT1462CS8#PBF

Mfr. #:
Buy LT1462CS8#PBF
Manufacturer:
Analog Devices Inc.
Description:
Operational Amplifiers - Op Amps Dual,40uA/Amp,Pico Amp JFET OA
Lifecycle:
New from this manufacturer.
Delivery:
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