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PDF LT1464ACS8 Data sheet ( Hoja de datos )
| Número de pieza | LT1464ACS8 | |
| Descripción | Dual/Quad Micropower/ 1MHz C-Load Picoampere Bias Current JFET Input Op Amps | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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LT1464/LT1465
Dual/Quad Micropower,
1MHz C-Load Picoampere
Bias Current JFET Input Op Amps
FEATURES
s Input Bias Current:
2pA Max (LT1464A)
20pA Max (LT1464, LT1465)
s Supply Current per Amplifier: 200µA Max
s Gain Bandwidth Product: 1MHz Typ
s Slew Rate: 0.9V/µs Typ
s Input Common Mode Range Includes Positive Rail
s Unity-Gain Stable for C-LoadTM Up to 10nF
s Open-Loop Gain: 1 Million Typ
s Guaranteed Specs with ±5V, ±15V Supplies
s Guaranteed Matching Specifications
s Standard Pinout: SO-8, SO-14 Package
U
APPLICATIONS
s Battery-Powered Systems
s Photocurrent Amplifiers
s Low Frequency, Micropower Active Filters
s Low Droop Track-and-Hold Circuits
DESCRIPTION
The LT®1464 (dual) and LT1465 (quad) are the first
micropower op amps (200µA max per amp) to offer
picoampere input bias currents (500fA 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 LT1464/LT1465 ideal over a wide range of input and
output impedances.
In the design and testing of the LT1464/LT1465, particular
emphasis has been placed on optimizing performance in
the low cost SO-8 (dual) and 14-lead SO (quad) package for
±15V and ±5V supplies. The input common mode range
includes the positive rail. Slew rate (0.5V/µs min) and gain
bandwidth product (650kHz min) are 100% tested. A full
set of matching specifications is also provided.
, LTC and LT are registered trademarks of Linear Technology Corporation.
C-Load is a trademark of Linear Technology Corporation.
TYPICAL APPLICATION
Micropower Low Droop Track-and-Hold/Peak Detector
V+
1/4 LTC201 13 15
A 16
4 14
V–
1 MCT2 5
5+
26
4
7 R1*
1/2 LT1464
IN 6 –
1 MCT2 5
1/4 LTC201
B1
2
26
4
53
C1
10nF
POLYSTYRENE
V+
2– 8
1/2 LT1464
3+ 4
V–
1
VOUT
LT1464 • TA01
TYPICAL DROOP = 0.5pA = 0.05mV/s
10nF
TOTAL SUPPLY CURRENT = 460 µA MAX
* R1 = 600 Ω FOR ±15V SUPPLIES
R1 = 0 Ω FOR ±5V SUPPLIES
FUNCTION
MODE
Track-and-Hold
Track
Positive Peak Detector Reset
Negative Peak Detector Reset
LTC201 switch is open for logic "1".
IN A IN B MODE IN A IN B
0 0 Hold 1 1
0 0 Store 0 1
0 0 Store 1 0
Small-Signal Response, CLOAD = 10nF
AV = 1
VS = ±5V, ±15V
CL = 10nF
1464 • TA02
1
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS
LT1464/LT1465
Input Bias and Offset Current vs
Temperature
10000
LT1464/LT1465
LT1464A
1000
100
BIAS CURRENT
10
OFFSET CURRENT
1
0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
LT1464 • TPC01
Supply Current vs Temperature
200
175
VS = ±15V
150
VS = ±5V
125
100
75
Input Bias Current Over the
Common Mode Range
80
70
VS = ±15V
TA = 25°C
60
50
40
30
20
10
0
–10
–15 –10 –5 0
5 10
COMMON MODE INPUT VOLTAGE (V)
15
LT1464 • TPC02
Voltage Noise vs Frequency
100
VS = ±15V
70 TA = 25°C
50
30
1/f CORNER = 9Hz
20
50
–75 –50 –25 0 25 50 75 100 125
TEMPERATURE (°C)
LT1464 • TPC04
Voltage Gain vs Temperature
1.4k
VO = ±10V, VS = ±15V
1.2k VO = ±2V, RL = 10k, VS = ±5V
VO = ±1V, RL = 2k, VS = ±5V
1k
RL = 10k, VS = ±15V
800
RL = 2k, VS = ±15V
600
400
200 RL = 2k, VS = ±5V
0 RL = 10k, VS = ±5V
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1464 • TPC07
10
3 10 30 100 300 1k 3k 10k
FREQUENCY (Hz)
LT1464 • TPC05
Slew Rate, Gain Bandwidth
Product vs Temperature
1.75
SLEW FALL
1.5
1.50 1.3
1.25 1.1
GAIN BANDWIDTH
1.00
SLEW RISE
0.9
0.75 0.7
VS = ±15V
0.50 0.5
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
LT1464 • TPC08
Common Mode Range vs
Temperature
16
15
14
13
12
–11
–12
–13
–14 VS = ±15V
–15
–75 –50 –25 0 25 50 75 100 125
TEMPERATURE (°C)
LT1464 • TPC03
0.1Hz to 10Hz Noise
0 2 4 6 8 10
TIME (SEC)
LT1464 • TPC06
Channel Separation vs Frequency
160
VS = ±15V
TA = 25°C
140 VIN = 10VP-P
RL = 10k
120
100
80
60
10
100 1k 10k 100k
FREQUENCY (Hz)
1M
LT1464 • TPC09
5
5 Page 
LT1464/LT1465
PACKAGE DESCRIPTION Dimensions in inches (millimeters) unless otherwise noted.
N Package
14-Lead PDIP (Narrow 0.300)
(LTC DWG # 05-08-1510)
0.770*
(19.558)
MAX
14 13 12 11 10
9
8
0.255 ± 0.015*
(6.477 ± 0.381)
0.300 – 0.325
(7.620 – 8.255)
0.130 ± 0.005
(3.302 ± 0.127)
1 234 56 7
0.045 – 0.065
(1.143 – 1.651)
0.009 – 0.015
(0.229 – 0.381)
0.015
(0.380)
MIN
+0.025
0.325 –0.015
( )8.255
+0.635
–0.381
0.125
(3.175)
MIN
0.005
(0.125)
MIN
0.100 ± 0.010
(2.540 ± 0.254)
*THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS.
MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm)
0.065
(1.651)
TYP
0.018 ± 0.003
(0.457 ± 0.076)
N14 0695
S Package
14-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
0.337 – 0.344*
(8.560 – 8.738)
14 13 12 11 10
9
8
0.228 – 0.244
(5.791 – 6.197)
0.150 – 0.157**
(3.810 – 3.988)
0.010
(0.254
–
–
0.020
0.508)
×
45°
0.008 – 0.010
(0.203 – 0.254)
1234567
0° – 8° TYP
0.053 – 0.069
(1.346 – 1.752)
0.004 – 0.010
(0.101 – 0.254)
0.016 – 0.050
0.406 – 1.270
0.014 – 0.019
(0.355 – 0.483)
*DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
**DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
0.050
(1.270)
TYP
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
S14 0695
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet LT1464ACS8.PDF ] | |
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