LTC6253-7
2GHz, 3.5mA Gain of 7
Stable Rail-to-Rail I/O
Dual Op Amp
FEATURES
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DESCRIPTION
The
LTC
®
6253-7
is a dual high speed, low power, rail-to-
rail input/output operational amplifier. On only 3.5mA of
supply current, it features a 2GHz gain-bandwidth product,
500V/µs slew rate and a low 2.75nV/√Hz of input-referred
noise. The combination of high bandwidth, high slew rate,
low power consumption and low broadband noise makes
the LTC6253-7 ideal for lower supply voltage, high speed
signal conditioning systems. The device is stable for closed
loop noise gains of 7 or higher.
The LTC6253-7 maintains high efficiency performance
from supply voltage levels of 2.5V to 5.25V and is fully
specified at supplies of 2.7V and 5.0V.
For applications that require power-down, the LTC6253-7
offers a shutdown pin which disables the amplifier and
reduces current consumption to 42µA.
The LTC6253-7 can be used as a plug-in replacement 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 of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Gain Bandwidth Product: 2GHz
–3dB Frequency (A
V
= 7): 160MHz
Low Quiescent Current: 3.5mA Max
High Slew Rate: 500V/µs
Input Common Mode Range Includes Both Rails
Output Swings Rail-to-Rail
Low Broadband Voltage Noise: 2.75nV/√Hz
Fast Output Recovery
Supply Voltage Range: 2.5V to 5.25V
Input Offset Voltage: 350µV Max
Large Output Current: 90mA
CMRR: 105dB
Open Loop Gain: 60V/mV
Operating Temperature Range: –40°C to 125°C
MS10 Package with Independent Shutdown Pins
APPLICATIONS
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Low Voltage, High Frequency Signal Processing
Driving A/D Converters
Rail-to-Rail Buffer Amplifiers
Active Filters
Battery Powered Equipment
TYPICAL APPLICATION
ADC Driver with Gain
5V
2.2µF
4.4V
V
IN
= 0V TO 580mV
2.2µF
V
DD
A
IN
47pF
GND
625234 TA01
LTC6253–7 Driving LTC2314–14
1024 Point FFT
3.3V
2.2µF
REF OV
DD
CS
LTC2314-14
8-PIN TSOT
SCK
SDO
CS
SCK
SDO
AMPLITUDE (dBFS)
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
f
S
= 2Msps
F1 = 20.5kHz
F1 AMPLITUDE = –0.916dBFS
SFDR = 89dB
SNR = 72dB
+
–
½ LTC6253-7
V
+
100
OUT
V
–
–0.7V
200Ω
1.21k
0 100 200 300 400 500 600 700 800 900 1000
FREQUENCY (kHz)
62537 TA01b
62537f
For more information
www.linear.com/LTC6253-7
1
LTC6253-7
ABSOLUTE MAXIMUM RATINGS
(Note 1)
+
–
PIN CONFIGURATION
TOP VIEW
OUT A
–IN A
+IN A
V–
SHDNA
1
2
3
4
5
10
9
8
7
6
V+
OUT B
–IN B
+IN B
SHDNB
MS PACKAGE
10-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
q
JA
= 160°C/W (NOTE 9)
ORDER INFORMATION
LEAD FREE FINISH
LTC6253IMS-7#PBF
LTC6253HMS-7#PBF
TAPE AND REEL
LTC6253IMS-7#TRPBF
LTC6253HMS-7#TRPBF
PART MARKING*
LTGWS
LTGWS
PACKAGE DESCRIPTION
10-Lead Plastic MSOP
10-Lead Plastic MSOP
SPECIFIED TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
*Temperature grades are identified by a label on the shipping container.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/.
Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS
SYMBOL
V
OS
PARAMETER
Input Offset Voltage
specified temperature range, otherwise specifications are at T
A
= 25°C. For each amplifier V
S
= 5V, 0V; V
SHDN
= 2V; V
CM
= V
OUT
=
2.5V, unless otherwise noted.
CONDITIONS
V
CM
= Half Supply
l
(V
S
= 5V)
The
l
denotes the specifications which apply across the
MIN
–350
–1000
–2.2
–3.3
–350
–550
–2.75
–4
–0.75
–1.15
0.8
0.4
–0.5
–0.6
–0.5
–0.6
TYP
50
0.1
50
0.1
–3.5
–0.1
1.4
–0.03
–0.03
2.75
2
4
0.75
1.15
3.0
5.0
0.5
0.6
0.5
0.6
MAX
350
1000
2.2
–3.3
350
550
2.75
4
V
CM
= V
+
– 0.5V, NPN Mode
l
DV
OS
Input Offset Voltage Match
(Channel-to-Channel) (Note 7)
V
CM
= Half Supply
l
V
CM
= V
+
– 0.5V, NPN Mode
l
V
OS
T
C
I
B
Input Offset Voltage Drift
Input Bias Current (Note 6)
V
CM
= Half Supply
l
l
V
CM
= V
+
– 0.5V, NPN Mode
l
I
OS
Input Offset Current
V
CM
= Half Supply
l
V
CM
= V
+
– 0.5V, NPN Mode
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Input Noise Voltage Density
Input 1/f Noise Voltage
Input Noise Current Density
f = 1MHz
f = 0.1Hz to 10Hz
f = 1MHz
2
For more information
www.linear.com/LTC6253-7
+
–
Total Supply Voltage (V
+
to V
–
) ................................5.5V
Input Current (+IN, –IN,
SHDN)
(Note 2) .............. ±10mA
Output Current (Note 3) ..................................... ±100mA
Operating Temperature Range (Note 4).. –40°C to 125°C
Specified Temperature Range (Note 5) .. –40°C to 125°C
Storage Temperature Range .................. –65°C to 150°C
Junction Temperature ........................................... 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
UNITS
µV
µV
mV
mV
µV
µV
mV
mV
µV/°C
µA
µA
µA
µA
µA
µA
µA
µA
nV/√Hz
µV
P-P
pA/√Hz
62537f
LTC6253-7
specified temperature range, otherwise specifications are at T
A
= 25°C. For each amplifier V
S
= 5V, 0V; V
SHDN
= 2V; V
CM
= V
OUT
=
2.5V, unless otherwise noted.
SYMBOL
C
IN
R
IN
A
VOL
PARAMETER
Input Capacitance
Input Resistance
Large Signal Voltage Gain
CONDITIONS
Differential Mode
Common Mode
Differential Mode
Common Mode
R
L
= 1k to Half Supply (Note 9)
l
ELECTRICAL CHARACTERISTICS
(V
S
= 5V)
The
l
denotes the specifications which apply across the
MIN
TYP
2.5
0.8
7.2
3
35
16
5
2.4
85
82
0
66.5
62
2.5
25
l
MAX
UNITS
pF
pF
kΩ
MΩ
V/mV
V/mV
V/mV
V/mV
dB
dB
60
13
105
V
S
70
5.25
40
65
90
120
200
320
100
120
170
210
330
450
–40
–32
R
L
= 100Ω to Half Supply (Note 9)
l
CMRR
V
CMR
PSRR
Common Mode Rejection Ratio
Input Common Mode Range
Power Supply Rejection Ratio
Supply Voltage Range (Note 5)
V
CM
= 0V to 3.5V
l
l
V
dB
dB
V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
V
S
= 2.5V to 5.25V, V
CM
= 1V
l
l
V
OL
Output Swing Low (V
OUT
– V
–
)
No Load
I
SINK
= 5mA
l
60
150
l
I
SINK
= 25mA
V
OH
Output Swing High (V
+
– V
OUT
)
No Load
l
65
115
l
I
SOURCE
= 5mA
I
SOURCE
= 25mA
l
270
–90
l
I
SC
Output Short-Circuit Current
Sourcing
Sinking
l
60
40
100
3.3
3.5
4.8
4.85
5.9
55
75
0
0
300
600
0.8
I
S
Supply Current per Amplifier
V
CM
= Half Supply
l
mA
mA
mA
mA
µA
µA
µA
µA
nA
nA
V
V
nA
µs
µs
62537f
V
CM
= V
+
– 0.5V
l
4.25
42
l
I
SD
I
SHDNL
I
SHDNH
V
L
V
H
I
OSD
t
ON
t
OFF
Disable Supply Current
SHDN
Pin Current Low
SHDN
Pin Current High
SHDN
Pin Input Voltage Low
SHDN
Pin Input Voltage High
Output Leakage Current in Shutdown
Turn-On Time
Turn-Off Time
V
SHDN
= 0.8V
V
SHDN
= 0.8V
l
–3
–4
–300
–600
2
–1.6
35
V
SHDN
= 2V
l
l
l
V
SHDN
= 0.8V, Output Shorted to Either
Supply
V
SHDN
= 0.8V to 2V
V
SHDN
= 2V to 0.8V
100
3.5
2
For more information
www.linear.com/LTC6253-7
3
LTC6253-7
ELECTRICAL CHARACTERISTICS
SYMBOL
BW
GBW
t
S
, 0.1%
SR
FPBW
HD2/HD3
PARAMETER
–3dB Closed Loop Bandwidth
Gain-Bandwidth Product
Settling Time to 0.1%
Slew Rate
Full Power Bandwidth
Harmonic Distortion
R
L
= 1k to Half Supply, A
V
= +7,
R
F
= 499Ω
R
L
= 1kΩ to Half Supply, A
V
= +7,
R
F
= 3kΩ
Crosstalk
specified temperature range, otherwise specifications are at T
A
= 25°C. For each amplifier V
S
= 5V, 0V; V
SHDN
= 2V; V
CM
= V
OUT
=
2.5V, unless otherwise noted.
CONDITIONS
A
V
= 7, R
L
= 1k to Half Supply
f = 10MHz, R
L
= 1k to Half Supply
l
(V
S
= 5V)
The
l
denotes the specifications which apply across the
MIN
0.9
0.67
TYP
160
2
32
300
250
500
13
99/94
73/71
60/56
105/109
82/87
66/67
–79
MAX
UNITS
MHz
GHz
GHz
ns
V/µs
V/µs
MHz
dBc
dBc
dBc
dBc
dBc
dBc
dB
A
V
= 7, 2V Output Step R
L
= 1k,
V
CC
= 4.5V, V
EE
= 0.5V
A
V
= –6, 4V Output Step (Note 10)
l
V
OUT
= 4V
P-P
(Note 12)
f
C
= 100kHz, V
O
= 2V
P-P
f
C
= 1MHz, V
O
= 2V
P-P
f
C
= 5MHz, V
O
= 2V
P-P
f
C
= 100kHz, V
O
= 2V
P-P
f
C
= 1MHz, V
O
= 2V
P-P
f
C
= 5MHz, V
O
= 2V
P-P
A
V
= 7, R
L
= 1k to Half Supply,
V
OUT
= 2V
P-P
, f = 2.5MHz
T
A
= 25°C. For each amplifier V
S
= 2.7V, 0V; V
SHDN
= 2V; V
CM
= V
OUT
= 1.35V, unless otherwise noted.
SYMBOL PARAMETER
V
OS
Input Offset Voltage
CONDITIONS
V
CM
= Half Supply
l
(V
S
= 2.7V)
The
l
denotes the specifications which apply across the specified temperature range, otherwise specifications are at
MIN
0
–300
–1.6
–2.0
–350
–750
–2.8
–4
–1000
–1500
0.6
0
–500
–600
–500
–600
TYP
700
0.9
10
0.1
2.75
–275
1.175
–150
–30
2.9
2
3.6
2.5
0.8
7.2
3
600
900
2.5
4.0
500
600
500
600
MAX
1250
1500
3.2
3.4
350
750
2.8
4
UNITS
µV
µV
mV
mV
µV
µV
mV
mV
µV/°C
nA
nA
µA
µA
nA
nA
nA
nA
nV/√Hz
µV
P-P
pA/√Hz
pF
pF
kΩ
MΩ
V
CM
= V
+
– 0.5V, NPN Mode
l
DV
OS
Input Offset Voltage Match
(Channel-to-Channel) (Note 8)
V
CM
= Half Supply
l
V
CM
= V
+
– 0.5V, NPN Mode
l
V
OS
T
C
I
B
Input Offset Voltage Drift
Input Bias Current (Note 7)
V
CM
= Half Supply
l
l
V
CM
= V
+
– 0.5V, NPN Mode
l
I
OS
Input Offset Current
V
CM
= Half Supply
l
V
CM
= V
+
– 0.5V, NPN Mode
l
e
n
i
n
C
IN
R
IN
Input Noise Voltage Density
Input 1/f Noise Voltage
Input Noise Current Density
Input Capacitance
Input Resistance
f = 1MHz
f = 0.1Hz to 10Hz
f = 1MHz
Differential Mode
Common Mode
Differential Mode
Common Mode
62537f
4
For more information
www.linear.com/LTC6253-7
LTC6253-7
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER
A
VOL
Large Signal Voltage Gain
specified temperature range, otherwise specifications are at T
A
= 25°C. For each amplifier V
S
= 2.7V, 0V; V
SHDN
= 2V; V
CM
= V
OUT
=
1.35V, unless otherwise noted.
CONDITIONS
R
L
= 1k to Half Supply
(Note 11)
R
L
= 100Ω to Half Supply
(Note 11)
l
l
l
(V
S
= 2.7V)
The
l
denotes the specifications which apply across the
MIN
16.5
7
2.3
1.8
80
77
0
66.5
62
2.5
22
l
TYP
36
6.9
105
MAX
UNITS
V/mV
V/mV
V/mV
V/mV
dB
dB
CMRR
V
CMR
PSRR
Common Mode Rejection Ratio
Input Common Mode Range
Power Supply Rejection Ratio
Supply Voltage Range (Note 5)
V
CM
= 0V to 1.2V
l
V
S
70
5.25
28
40
100
140
150
190
75
95
150
200
200
275
–18
–14
V
dB
dB
V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
V
S
= 2.5V to 5.25V, V
CM
= 1V
l
l
V
OL
Output Swing Low (V
OUT
– V
–
)
No Load
I
SINK
= 5mA
l
80
110
l
I
SINK
= 10mA
V
OH
Output Swing High (V
+
– V
OUT
)
No Load
l
55
125
l
I
SOURCE
= 5mA
I
SOURCE
= 10mA
l
165
–35
l
I
SC
Short-Circuit Current
Sourcing
Sinking
l
20
17
40
2.9
3.5
4.5
4.6
5.5
35
50
0
0
300
600
0.8
I
S
Supply Current per Amplifier
V
CM
= Half Supply
l
mA
mA
mA
mA
µA
µA
µA
µA
nA
nA
V
V
nA
µs
µs
MHz
GHz
GHz
V
CM
= V
+
– 0.5V
l
3.7
24
l
I
SD
I
SHDNL
I
SHDNH
V
L
V
H
I
OSD
t
ON
t
OFF
BW
GBW
Disable Supply Current
SHDN
Pin Current Low
SHDN
Pin Current High
SHDN
Pin Input Voltage
SHDN
Pin Input Voltage
V
SHDN
= 0.8V
V
SHDN
= 0.8V
l
–1
–1.5
–300
–600
2.0
–0.5
45
V
SHDN
= 2V
l
l
l
Output Leakage Current Magnitude in Shutdown V
SHDN
= 0.8V, Output Shorted to Either
Supply
Turn-On Time
Turn-Off Time
–3dB Closed Loop Bandwidth
Gain-Bandwidth Product
V
SHDN
= 0.8V to 2V
V
SHDN
= 2V to 0.8V
A
V
= +7, R
L
= 1k to Half Supply
f = 10MHz, R
L
= 1k to Half Supply
l
100
5
2
130
0.8
0.5
1.3
62537f
For more information
www.linear.com/LTC6253-7
5
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