LT1782CS5 Linear Technology Corporation, LT1782CS5 Datasheet

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LT1782CS5

Manufacturer Part Number
LT1782CS5
Description
Manufacturer
Linear Technology Corporation
Datasheet

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FEATURES
TYPICAL APPLICATIO
APPLICATIO S
Operates with Inputs Above V
Rail-to-Rail Input and Output
Micropower: 55 A Supply Current Max
Operating Temperature Range: – 40 C to 125 C
Low Profile (1mm) ThinSOT
Low Input Offset Voltage: 800 V Max
Single Supply Input Range: 0V to 18V
High Output Current: 18mA Min
Specified on 3V, 5V and 5V Supplies
Output Shutdown on 6-Lead Version
Reverse Battery Protection to 18V
High Voltage Gain: 1500V/mV
Gain Bandwidth Product: 200kHz
Slew Rate: 0.07V/ s
Portable Instrumentation
Battery- or Solar-Powered Systems
Sensor Conditioning
Supply Current Sensing
Battery Monitoring
MUX Amplifiers
4mA to 20mA Transmitters
5V TO 18V
LOAD
V
+
0.2
200
200
Positive Supply Rail Current Sense
I
LOAD
U
+
LT1782
5V
TM
+
Package
U
MMBT3904
2k
V
0V TO 4.3V
1782 TA01
OUT
= 2 (I
LOAD
)
Input and Output Op Amp
DESCRIPTIO
Micropower, Over-The-Top
The LT
SOT-23 package that operates on all single and split
supplies with a total voltage of 2.5V to 18V. The amplifier
draws less than 55 A of quiescent current and has reverse
battery protection, drawing negligible current for reverse
supply voltages up to 18V.
The input range of the LT1782 includes ground, and a
unique feature of this device is its Over-The-Top
tion capability with either or both of its inputs above the
positive rail. The inputs handle 18V both differential and
common mode, independent of supply voltage. The input
stage incorporates phase reversal protection to prevent
false outputs from occurring even when the inputs are 9V
below the negative supply.
The LT1782 can drive loads up to 18mA and still maintain
rail-to-rail capability. A shutdown feature on the 6-lead
version can disable the part, making the output high
impedance and reducing quiescent current to 5 A. The
LT1782 op amp is available in the 5- and 6-lead
SOT-23 packages. For applications requiring higher speed,
refer to the LT1783.
ThinSOT and Over-The-Top are trademarks of Linear Technology Corporation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1782 is a 200kHz op amp available in the small
25
20
15
10
5
0
–900
Distribution of Input Offset Voltage
V
V
SOT-23, Rail-to-Rail
S
CM
–600
= 5V, 0V
U
= 2.5V
INPUT OFFSET VOLTAGE ( V)
–300
0
300
600
1782 TA01a
900
LT1782
TM
opera-
1

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LT1782CS5 Summary of contents

Page 1

... A. The LT1782 op amp is available in the 5- and 6-lead SOT-23 packages. For applications requiring higher speed, refer to the LT1783. , LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT and Over-The-Top are trademarks of Linear Technology Corporation. MMBT3904 ...

Page 2

... Specified Temperature Range (Note 4) LT1782C ............................................ – LT1782I ............................................. – LT1782H ......................................... – 125 C Junction Temperature........................................... 150 C Storage Temperature Range ................ – 150 C Lead Temperature (Soldering, 10 sec)................. 300 ORDER PART NUMBER LT1782CS5 1 OUT LT1782IS5 – LT1782HS5 + PART MARKING ...

Page 3

ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the specified temperature range, otherwise specifications are 3V, 0V 5V, 0V half supply, for the 6-lead part OUT SYMBOL ...

Page 4

LT1782 ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the specified temperature range, otherwise specifications are 3V, 0V 5V, 0V half supply, for the 6-lead part OUT ...

Page 5

ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the specified temperature range, otherwise specifications are 5V 0V,V = 0V, for the 6-lead part OUT SYMBOL PARAMETER Maximum Shutdown Pin Current Shutdown Output ...

Page 6

LT1782 ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full operating temperature range of – half supply, for the 6-lead part V CM OUT SYMBOL PARAMETER I Supply Current S Supply Current, ...

Page 7

ELECTRICAL CHARACTERISTICS Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: A heat sink may be required to keep the junction temperature below absolute maximum. Note 3: The LT1782C ...

Page 8

LT1782 W U TYPICAL PERFOR A CE CHARACTERISTICS Input Bias Current vs Common Mode Voltage 6000 V = 5V, 0V 5000 125 C 4000 A 3000 2000 1000 ...

Page 9

W U TYPICAL PERFOR A CE CHARACTERISTICS Gain Bandwidth Product vs Temperature 230 f = 5kHz V = 2.5V 220 S 210 200 190 180 170 –50 – 100 125 TEMPERATURE ( C) 1782 G11 Gain ...

Page 10

LT1782 W U TYPICAL PERFOR A CE CHARACTERISTICS Capacitive Load Handling Overshoot vs Capacitive Load 5V 2. ...

Page 11

U U APPLICATIO S I FOR ATIO Supply Voltage The positive supply pin of the LT1782 should be bypassed with a small capacitor (typically 0.1 F) within an inch of the pin. When driving heavy loads, an additional 4.7 F ...

Page 12

LT1782 U U APPLICATIO S I FOR ATIO typically 100dB. When the LT1782 switches between input stages, there is significant nonlinearity in the CMRR. Lower load resistance increases the output crossover distortion but has no effect on the input stage ...

Page 13

U TYPICAL APPLICATIO S 18V INPUT DIFFERENTIAL VOLTAGE Compact, High Output Current, Low Dropout, Precision 2.5V Supply Protected Fault Conditions OK! –18V OK LT1782 + 24V REVERSE BATTERY INPUT OVERVOLTAGE OK! 5V OK! + LT1782 10V + INPUT ...

Page 14

LT1782 PACKAGE DESCRIPTIO SOT-23 SOT-23 (Original) (ThinSOT) .90 – 1.45 1.00 MAX A (.035 – .057) (.039 MAX) .00 – .15 .01 – .10 A1 (.00 – .006) (.0004 – .004) .90 – 1.30 .80 – .90 A2 (.035 – ...

Page 15

... SC-74A (EIAJ) FOR ORIGINAL JEDEL MO-193 FOR THIN 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. U ...

Page 16

... MSOP Package, Shutdown Function CC 170 A Supply Current, Single Supply Input Range: –0.4V to 44V, Rail-to-Rail Input and Output www.linear.com 10k 100k 1M 10M FREQUENCY (Hz) 1782 TA05b Extends 44V Above V , Independent 1782fa LT/TP 0501 1.5K REV A • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1999 ...

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