LTC6255/LTC6256/LTC6257
6.5MHz, 65A Power
Efficient Rail-to-Rail I/O
Op Amps
Fe A Description
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Gain Bandwidth Product: 6.5MHz The LTC 6255/LTC6256/LTC6257 are single/dual/quad
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3dB Bandwidth (A = +1): 4.5MHz operational amplifiers with low noise, low power, low
V
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Low Quiescent Current: 65A supply voltage, and rail-to-rail inputs and outputs. They
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C-Load Op Amp Drives all Capacitive Loads are unity gain stable with or without capacitive loads.
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Offset Voltage: 350V Maximum They feature 6.5MHz gain-bandwidth product, 1.8V/s
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Rail-to-Rail Input and Output slew rate while consuming only 65A of supply current
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Supply Voltage Range: 1.8V to 5.25V per amplifier operating on supply voltages ranging from
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Input Bias Current: 50nA Maximum 1.8V to 5.25V. The combination of low supply current,
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CMRR/PSRR: 100dB/100dB low supply voltage, high gain bandwidth product and low
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Shutdown Current: 7A Maximum noise makes the LTC6255 family unique among rail-to-rail
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Operating Temperature Range: 40C to 125C input/output op amps with similar supply current. These
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Single in 6-Lead TSOT-23, 2mm 2mm DFN Packages operational amplifiers are ideal for low power and low
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Dual in 8-Lead MS8, MS10, TS0T-23, 2mm 2mm noise applications.
DFN, 2mm 2mm Thin DFN Packages
For applications that require power-down, the LTC6255
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Quad in MS16 Package
and LTC6256 in S6 and MS10 packages offer shutdown
which reduces the current consumption to 7A maximum.
Applic A
The LTC6255 family can be used as plug-in replacements
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Micropower Active Filters for many commercially available op amps to reduce power
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Portable Instrumentation and improve input/output range and performance.
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Battery or Solar Powered Systems L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
Over-The-Top and C-Load are trademarks of Linear Technology Corporation. All other
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Automotive Electronics
trademarks are the property of their respective owners.
t Al Applic A
LTC6255 Driving LTC2361 ADC
Low Power, Low Distortion ADC Driver
0
V = 1dBFS, 5kHz
IN
3.3V 10
f = 125kSps
S
SNR = 72.5dB
20
SFDR = 89dB
3.3V
30
t = 5s
ACQ
V V
DD REF
+ t = 3s
V
IN 324 CS CONV
40
5mV TO 2V
1%
SDO
50
LTC6255 A LTC2361
IN
SCK
60
470pF
OV
DD
NPO
70
GND
80
625567 TA01a
6.34k, 1% 90
10k
1%
100
110
22pF I = 540A TOTAL AT 125kSps
SUPPLY
0 10 20 30 40 50 60
FREQUENCY (kHz)
625567 TA01b
625567fd
1
For more information www.linear.com/LTC6255
MAGNITUDE (dB)
tion ypic
tions
turesLTC6255/LTC6256/LTC6257
Absolute M A Mu M rA
(Note 1)
+
Supply Voltage: V V ...........................................5.5V Specified Temperature Range (Note 5)
+
Input Voltage .................................. V 0.2 to V + 0.2 LTC6255C/LTC6256C/LTC6257C ............0C to 70C
Input Current: +IN, IN, SHDN (Note 2) ..............10mA LTC6255I/LTC6256I/LTC6257I ...........40C to 85C
Output Current: OUT ........................................... 20mA LTC6255H/LTC6256H/LTC6257H .....40C to 125C
Output Short-Circuit Duration (Note 3) ...........Indefinite Maximum Junction Temperature.......................... 150C
Operating Temperature Range (Note 4) Storage Temperature Range ..................65C to 150C
LTC6255C/LTC6256C/LTC6257C ........40C to 85C Lead Temperature (Soldering, 10 sec)
LTC6255I/LTC6256I/LTC6257I ...........40C to 85C S6, TS8, MS8, MS only ........................................300C
LTC6255H/LTC6256H/LTC6257H .....40C to 125C
p in c F A
TOP VIEW
TOP VIEW
+
OUTA 1 8 V
+
OUT 1 6 V
INA 2 7 OUTB
+
9
V 2 5 SHDN
+INA INB
3 6
V
+IN 3 4 IN
V 4 5 +INB
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
KC PACKAGE
8-LEAD (2mm 2mm 0.6mm) PLASTIC UTDFN
T = 150C, q = 192C/W (NOTE 6)
JMAX JA
T = 125C, q = 89C/W (NOTE 6)
JMAX JA
EXPOSED PAD (PIN 9) IS V , MUST BE SOLDERED TO PCB
TOP VIEW
TOP VIEW
+
OUTA 1 8 V +
OUTA 1 8 V
INA 2 7 OUTB INA 7 OUTB
2
+ +
+INA 3 6 INB
+INA 3 6 INB
V 4 5 +INB
V 4 5 +INB
MS8 PACKAGE
TS8 PACKAGE
8-LEAD PLASTIC MSOP
8-LEAD PLASTIC TSOT-23
T = 150C, q = 163C/W (NOTE 6)
JMAX JA
T = 150C, q = 195C/W (NOTE 6)
JMAX JA
TOP VIEW
TOP VIEW
OUTA 1 16 OUTD
+ INA 2 15 IND
OUTA 1 10 V +
+INA 3 14 +IND
INA 2 9 OUTB
+
+
V 4 13 V
+INA 3 8 INB
+
+INB 5 12 +INC
V 4 7 +INB
INB 6 11 INC
SHDNA 5 6 SHDNB
OUTB OUTC
7 10
NC 8 9 NC
MS PACKAGE
10-LEAD PLASTIC MSOP
MS PACKAGE
16-LEAD PLASTIC MSOP
T = 150C, q = 160C/W (NOTE 6)
JMAX JA
T = 150C, q = 125C/W (NOTE 6)
JMAX JA
TOP VIEW
TOP VIEW
+
OUTA 1 8 V
+
V 1 6 OUT
INA 2 7 OUTB
9
+IN 2 7 5 IN
+INA 3 6 INB
V
V
V 3 4 SHDN
V 4 +INB
5
DC PACKAGE
DC PACKAGE
8-LEAD (2mm 2mm 0.8mm) PLASTIC DFN
6-LEAD (2mm 2mm) PLASTIC DFN
T = 125C, q = 102C/W (NOTE 6)
JMAX JA
T = 125C, q = 102C/W (NOTE 6)
JMAX JA
EXPOSED PAD (PIN 9) IS V , MUST BE SOLDERED TO PCB
EXPOSED PAD (PIN 7) IS V , MUST BE SOLDERED TO PCB
625567fd
2
For more information www.linear.com/LTC6255
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tion igur on
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