LTC6257 Linear Technology, LTC6257 Datasheet - Page 24

• Manufacturer Part Number: LTC6257
• Description: 65uA Power Efficient Rail-to-Rail I/O Op Amps
• Manufacturer: Linear Technology

V
*R
*R
STANDBY SUPPLY CURRENT WITH V
10% TO 90% RISE TIME: 10mA TO 1A, 2µs
LTC6255/LTC6256/LTC6257
typicAl ApplicAtion
relAteD pArts
PART NUMBER
LTC6246/LTC6247/
LTC6248
LT1498/LT1499
LTC6081/LT6082
LTC2050/LTC2051/
LTC2052
LTC1050/LTC1051/
LTC1052
LTC6084/LTC6085
LT1783
LT1637/LT1638/
LT1639
LT2054/LT2055
LT6010/LT6011/
LT6012
LT1782
LT1636
LT1490A/LT1491A
LT2178/LT2179
LT6000/LT6001/
LT6002

IN
SD
UP
5V
GUARANTEES LED OFF WHEN OP AMP SHDN. OTHERWISE OPTIONAL.
FORCES LED COMPLETELY OFF WHEN V
LTC6255 Applied as a LED Current Driver with 2µs Rise Time
9.76k
200
R1
R2
1M**
R
2µs Rise Time Analog 1A Pulsed LED Current Driver.
UP
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
+
–
LTC6255
5V
DESCRIPTION
180MHz, 1µA, Power Efficient Rail-to-Rail Op Amps
10MHz, 6V/µs, Dual/Quad,Rail-to-Rail Input and Output,
Precision C-Load Op Amps
Precision Dual/Quad CMOS Rail-to-Rail Input/Output
Amplifiers
Zero-Drift Operational Amplifiers in SOT-23
Precision Zero-Drift, Operational Amplifierwith Internal
Capacitors
Dual/Quad 1.5MHz, Rail-to-Rail, CMOS Amplifiers
1.25MHz, Over-The-Top
and Output Op Amp in SOT-23
1.1MHz, 0.4V/μs Over-The-Top Micropower, Rail-to-Rail
Input and Output Op Amps
Single/Dual Micropower Zero-Drift Operational Amplifiers 500kHz GBW, 150μA, 3μV V
135μA, 14nV/√Hz, Rail-to-Rail Output Precision Op Amp
with Shutdown
Micropower, Over-The-Top, SOT-23, Rail-to-Rail Input and
Output Op Amp
Over-The-Top, Micropower Rail-to-Rail, Input and Output
Op Amp
Dual/Quad Over-The-Top, Micropower Rail-to-Rail Input
and Output Op Amps
17μA Max, Dual and Quad, Single Supply, Precision
Op Amps
Single, Dual and Quad, 1.8V, 13μA Precision Rail-to-Rail
Op Amps
0mA TO 1A, ADD 2.7µs DELAY
SHDN
220pF
●
FAX: [phone]
C1
IN
= 0: 65µA R
I
LED
51
R4
650µA R
= V
IN
IN
= 0. OTHERWISE OPTIONAL.
• 200mA/V
UP
R
100k*
UP
SD
®
OPEN
Micropower, Rail-to-Rail Input
INSTALLED
240
Q1
R5
●
www.linear.com
Q2
I
LED
5V
Q3
R3
0.1
100mW
Q1 TO Q3
MOSFETs
3 2N7000
LED
OSRAM
LRW5SM
625567 TA02a
COMMENTS
180MHz GBW, 1mA, 500μV V
Slew Rate
10MHz GBW, 1.7mA, 475μV V
3.6MHz GBW, 330μA, 70μV V
3MHz GBW, 800μA, 3μV V
CMRR/PSRR
2.5MHz GBW, 1mA, 5μV V
120dB CMRR, 125dB PSRR
1.5MHz GBW, 110μA, 750μV V
1.25MHz GBW, 300μA, 800μV V
1.1MHz GBW, 250μA, 350μV V
330kHz GBW, 135μA, 35μV V
2.7V to 36V
200kHz GBW, 55μA, 800μV V
200kHz GBW, 50μA, 225μV V
200kHz GBW, 50μA, 500μV V
85kHz GBW, 17μA, 70μV V
50kHz GBW, 16μA , 600μV V
Waveform Is V
Measured at R3, then the 0mA to 1A Step Showing Extra
Time Domain Response Showing 2µs Rise Time. Top
2.7µs Delay When Recovering From 0mA
IN
. Middle Waveform Is the 10mA to 1A Step
(EXTRA DELAY)
10mA TO 1A
0mA TO 1A
OS
OS
OS
V
IN
OS
, V
OS(MAX)
, V
, RR In/Out, 5V to 44V
OS
OS
OS
OS
OS
OS
OS
, V
OS
OS
–
–
, V
, RR In/Out, 2.5V to 18V
, RR In/Out, 2.7V to 44V, –40°C to 125°C
, RR In/Out, 2V to 44V
, RR In/Out, 2.7V to 5.5V, 100dB CMRR
, RR In/Out, 2.5V to 5.25V, 90V/µs
OS
to V
to V
, RR In/Out, 2.2V to ±15V, 10nF C
, RR In/Out, 2.5V to 5.5V
, RR In/Out, 2.7V to 44V, 110dB CMRR
–
to V
, RR In/Out, 2.5V to 18V
–
+ 1.0V to V
 LINEAR TECHNOLOGY CORPORATION 2010
, RR In/Out, 1.8V to 18V
+
+
– 1V In, RR Out, 2.7V to 6V, 130dB
– 2.3V In, RR Out, 4.75V to 16V,
+
– 0.5V In, RR Out, 2.7V to 6V
+
– 1.2V In, RR Out,
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LT 0610 • PRINTED IN USA
625567 TA02b
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