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LTC6269IDD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
LTC6268/LTC6269
1
62689f
For more information www.linear.com/LTC6268
TYPICAL APPLICATION
FEATURES DESCRIPTION
500MHz Ultra-Low Bias
Current FET Input Op Amp
The LTC
®
6268/LTC6269 is a single/dual 500MHz FET-input
operational amplifier
with extremely low input bias current
and low input capacitance. It also features low input-
referred current noise and voltage noise making it an ideal
choice for high speed transimpedance amplifiers, CCD
output buffers, and high-impedance sensor amplifiers.
Its low distortion makes the LTC6268/LTC6269 an ideal
amplifier for driving SAR ADCs.
It operates on 3.1V to 5.25V supply and consumes 16.5mA
per amplifier. A shutdown feature can be used to lower
power consumption when the amplifier is not in use.
The LTC6268 single op amp is available in 8-lead SOIC and
6-lead SOT-23 packages. The SOIC package includes two
unconnected pins which can be used to create an input pin
guard ring to protect against board leakage currents. The
LTC6269 dual op amp is available in 8-lead MSOP with
exposed pad and 3mm × 3mm 10-lead DFN packages.
They are fully specified over the –40°C to 85°C and the
–40°C to 125°C temperature ranges.
20kΩ TIA Frequency Response
20kΩ Gain 65MHz Trans-Impedance Amplifier
APPLICATIONS
n
Gain Bandwidth Product: 500MHz
n
–3dB Bandwidth (A = 1): 350MHz
n
Low Input Bias Current:
±3fA Typ. Room Temperature
4pA Max at 125°C
n
Current Noise (100kHz): 5.5fA/√Hz
n
Voltage Noise (1MHz): 4.3nV/√Hz
n
Extremely Low C
IN
450fF
n
Rail-to-Rail Output
n
Slew Rate: 400V/µs
n
Supply Range: 3.1V to 5.25V
n
Quiescent Current: 16.5mA
n
Harmonic Distortion (2V
P-P
):
–100dB at 1MHz
–80dB at 10MHz
n
Operating Temp Range: –40°C to 125°C
n
Single in 8-Lead SO-8, 6-Lead TSOT-23 Packages
n
Dual in 8-Lead MS8, 3mm × 3mm 10-Lead DFN 10 Packages
n
Trans-Impedance Amplifiers
n
ADC Drivers
n
CCD Output Buffer
n
Photomultiplier Tube Post-Amplifier
n
Low I
BIAS
Circuits
L, LT, LT C , LT M, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
+
–
LTC6268
6268 TA01
2.5V
PARASITIC
FEEDBACK C
2.5V
PD
–2.5V
V
OUT
= –I
PD
• 20k
BW = 65MHz
PD = OSI OPTOELECTRONICS, FCI-125G-006
*TWO 40.2kΩ 0603 PACKAGE RESISTORS IN PARALLEL
20kΩ*
I
PD
FREQUENCY (MHz)
0.01
40
GAIN (dBΩ)
90
80
70
60
50
100
10 100 10000.1 1
6268 TA02
LTC6268/LTC6269
2
62689f
For more information www.linear.com/LTC6268
PIN CONFIGURATION
ABSOLUTE MAXIMUM RATINGS
Supply Voltage V
+
to V
–
...........................................5.5V
Input Voltage ...............................V
–
– 0.2V to V
+
+ 0.2V
Input Current (+IN, –IN)(Note 2) ............................ ±1mA
Input Current (SHDN) ............................................ ±1mA
Output Current (I
OUT
) (Note 8, 9) ......................... 135mA
Output Short-Circuit Duration (Note 3) ... Thermally Limited
Operating Temperature Range
LTC6268I/LTC6269I .............................–40°C to 85°C
LTC6268H/LTC6269H ........................ –40°C to 125°C
(Note 1)
1
2
3
4
8
7
6
5
TOP VIEW
SHDN
V
+
OUT
V
–
NC
–IN
+IN
NC
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C, θ
JA
= 120°C/W (NOTE 5)
1
2
3
6
5
4
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
V
+
SHDN
–IN
OUT
V
–
+IN
T
JMAX
= 150°C, θ
JA
= 192°C/W (NOTE 5)
1
2
3
4
OUTA
–INA
+INA
V
–
8
7
6
5
V
+
OUTB
–INB
+INB
TOP VIEW
MS8E PACKAGE
8-LEAD PLASTIC MSOP
9
V
–
T
JMAX
= 150°C, θ
JA
= 40°C/W (NOTE 5)
EXPOSED PAD (PIN 9) IS V
–
, IT IS RECOMMENDED TO SOLDER TO PCB
TOP VIEW
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
10
9
6
7
8
4
5
3
2
1
V+
OUTB
–INB
+INB
SDB
OUTA
–INA
+INA
V
–
SDA
11
V
–
T
JMAX
= 150°C, θ
JA
= 43°C/W (NOTE 5)
EXPOSED PAD (PIN 11) IS V
–
, IT IS RECOMMENDED TO SOLDER TO PCB
Specified Temperature Range (Note 4)
LTC6268I/LTC6269I .............................–40°C to 85°C
LTC6268H/LTC6269H ........................ –40°C to 125°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ...................300°C
LTC6268/LTC6269
3
62689f
For more information www.linear.com/LTC6268
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE
LTC6268IS6#TRMPBF LTC6268IS6#TRPBF LTGFS 6-Lead Plastic TSOT-23 –40°C to 85°C
LTC6268HS6#TRMPBF LTC6268HS6#TRPBF LTGFS 6-Lead Plastic TSOT-23 –40°C to 125°C
LTC6268IS8#PBF LTC6268IS8#TRPBF 6268 8-Lead Plastic SOIC –40°C to 85°C
LTC6268HS8#PBF LTC6268HS8#TRPBF 6268 8-Lead Plastic SOIC –40°C to 125°C
LTC6269IMS8E#PBF LTC6269IMS8E#TRPBF LTGFP 8-Lead Plastic MSOP –40°C to 85°C
LTC6269HMS8E#PBF LTC6269HMS8E#TRPBF LTGFP 8-Lead Plastic MSOP –40°C to 125°C
LTC6269IDD#PBF LTC6269IDD#TRPBF LGFN 10-Lead Plastic DD –40°C to 85°C
LTC6269HDD#PBF LTC6269HDD#TRPBF LGFN 10-Lead Plastic DD –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage V
CM
= 2.75V
l
–0.7
–2.5
0.2 0.7
2.5
mV
mV
V
CM
= 4.0V
l
–1.0
–4.5
0.2 1.0
4.5
mV
mV
TC V
OS
Input Offset Voltage Drift V
CM
= 2.75V 4 μV/°C
I
B
Input Bias Current
(Notes 6, 8)
V
CM
= 2.75V
LTC6268I/LTC6269I
LTC6268H/LTC6269H
l
l
–20
–900
–4
±3 20
900
4
fA
fA
pA
V
CM
= 4.0V
LTC6268I/LTC6269I
LTC6268H/LTC6269H
l
l
–20
–900
–4
±3 20
900
4
fA
fA
pA
I
OS
Input Offset Current (Notes 6, 8) V
CM
= 2.75V
LTC6268I/LTC6269I
LTC6268H/LTC6269H
l
l
–40
–450
–2
±6 40
450
2
fA
fA
pA
e
n
Input Voltage Noise Density, V
CM
= 2.75V f = 1MHz 4.3 nV/√Hz
Input Voltage Noise Density, V
CM
= 4.0V f = 1MHz 4.9 nV/√Hz
Input Referred Noise Voltage f = 0.1Hz to 10Hz 13 μV
P-P
i
n
Input Current Noise Density, V
CM
= 2.75V f = 100kHz 5.5 fA/√Hz
Input Current Noise Density, V
CM
= 4.0V f = 100kHz 5.3 fA/√Hz
R
IN
Input Resistance Differential >1000 GΩ
Common Mode >1000 GΩ
C
IN
Input Capacitance Differential (DC to 200MHz) 100 fF
Common Mode (DC to 100MHz) 450 fF
CMRR Common Mode Rejection Ratio V
CM
= 0.5V to 3.2V (PNP Side)
l
72
70
90 dB
dB
V
CM
= 0V to 4.5V
l
64
52
82 dB
dB
IVR Input Voltage Range Guaranteed by CMRR
l
0 4.5 V
The l denotes specifications that apply over the full operating
temp erature range, otherwise specifications are at T
A
= 25°C, V
SUPPLY
= 5.0V (V
+
= 5V, V
–
= 0V, V
CM
= mid-supply), R
L
= 1kΩ,
C
L
= 10pF, V
SHDN
is unconnected.
5.0V ELECTRICAL CHARACTERISTICS
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

LTC6269IDD#TRPBF

Mfr. #:
Buy LTC6269IDD#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Operational Amplifiers - Op Amps 2x 500MHz Ultra-L Bias C FET In Op Amp
Lifecycle:
New from this manufacturer.
Delivery:
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