LTC6257 Linear Technology, LTC6257 Datasheet
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LTC6257
Manufacturer Part Number
LTC6257
Description
65uA Power Efficient Rail-to-Rail I/O Op Amps
Manufacturer
Linear Technology
Datasheet
1.LTC6257.pdf
(24 pages)
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ApplicAtions
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typicAl ApplicAtion
FeAtures
Gain Bandwidth Product: 6.5MHz
–3dB Bandwidth (A
Low Quiescent Current: 65µA
Stable for Capacitive Load Up to 100nF
Offset Voltage: 350µV Maximum
Rail-to-Rail Input and Output
Supply Voltage Range: 1.8V to 5.25V
Input Bias Current: 35nA Maximum
CMRR/PSRR: 100dB/100dB
Shutdown Current: 7µA Maximum
Operating Temperature Range: –40°C to 125°C
Single in 6-Lead TSOT-23 Package
Dual in 8-Lead MS8, MS10, TS0T-23, 2mm × 2mm
Quad in MS16 Package
Micropower Active Filters
Portable Instrumentation
Battery or Solar Powered Systems
Automotive Electronics
Thin DFN Packages
5mV TO 2V
V
10k
1%
IN
Low Power, Low Distortion ADC Driver
+
–
LTC6255
V
3.3V
= +1): 4.5MHz
6.34k, 1%
22pF
I
SUPPLY
470pF
324
NPO
1%
= 540µA TOTAL AT 125kSps
A
IN
V
DD
LTC2361
3.3V
GND
V
REF
OV
SDO
SCK
625567 TA01a
CS
DD
Description
The LTC
operational amplifiers with low noise, low power, low
supply voltage, rail-to-rail input/output. They are unity
gain stable with capacitive load up to 100nF . They feature
6.5MHz gain-bandwidth product, 1.8V/µs slew rate while
consuming only 65µA of supply current per amplifier op-
erating on supply voltages ranging from 1.8V to 5.25V. The
combination of low supply current, low supply voltage, high
gain bandwidth product and low noise makes the LTC6255
family unique among rail-to-rail input/output op amps with
similar supply currents. These operational amplifiers are
ideal for low power and low noise applications.
For applications that require power-down, LTC6255 and
LTC6256 in S6 and MS10 packages offer shutdown
pins which reduces the current consumption to 7µA
maximum.
The LTC6255 family can be used as plug-in replacements
for many commercially available op amps to reduce power
or to improve input/output range and performance.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
Over-The-Top is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
LTC6255/LTC6256/LTC6257
Efficient Rail-to-Rail I/O
®
6255/LTC6256/LTC6257 are single/dual/quad
6.5MHz, 65µA Power
–100
–110
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
LTC6255 Driving LTC2361 ADC
10
20
FREQUENCY (kHz)
30
Op Amps
www.DataSheet4U.com
V
f
SNR = 72.5dB
SFDR = 89dB
t
t
S
ACQ
CONV
IN
40
= 125kSps
= –1dBFS, 5kHz
= 5µs
= 3µs
50
625567 TA01b
60
625567f