LTC6403-1
200MHz, Low Noise,
Low Power Fully Differential
Input/Output Amplifier/Driver
FEATURES DESCRIPTION
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Very Low Distortion: (2V , 3MHz): 95dBc The LTC 6403-1 is a precision, very low noise, low dis-
P-P
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Fully Differential Input and Output tortion, fully differential input/output amplifier optimized
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Low Noise: 2.8nV/Hz Input-Referred for 3V to 5V, single supply operation. The LTC6403-1 is
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200MHz Gain-Bandwidth Product unity gain stable. The LTC6403-1 closed-loop bandwidth
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Built-In Clamp: Fast Overdrive Recovery extends from DC to 200MHz. In addition to the normal
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Slew Rate: 200V/s unfiltered outputs (+OUT and OUT), the LTC6403-1 has a
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Adjustable Output Common Mode Voltage built-in 44.2MHz differential single-pole lowpass filter and
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Rail-to-Rail Output Swing an additional pair of filtered outputs (+OUTF, and OUTF).
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Input Range Extends to Ground An input referred voltage noise of 2.8nV/Hz enables the
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Large Output Current: 60mA (Typ) LTC6403-1 to drive state-of-the-art 14- to 18-bit ADCs
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DC Voltage Offset <1.5mV (Max) while operating on the same supply voltage, saving system
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10.8mA Supply Current cost and power. The LTC6403-1 maintains its performance
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2.7V to 5.25V Supply Voltage Range for supplies as low as 2.7V. It draws only 10.8mA, and
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Low Power Shutdown has a hardware shutdown feature which reduces current
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Tiny 3mm 3mm 0.75mm 16-Pin QFN Package consumption to 170A.
The LTC6403-1 is available in a compact 3mm 3mm
APPLICATIONS
16-pin leadless QFN package and operates over a 40C
to 125C temperature range.
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Differential Input A/D Converter Driver
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
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Single-Ended to Differential Conversion/Amplification
Devices, Inc. All other trademarks are the property of their respective owners.
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Common Mode Level Translation
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Low Voltage, Low Noise, Signal Processing
TYPICAL APPLICATION
Single-Ended Input to Differential Output
Harmonic Distortion vs Frequency
With Common Mode Level Shifting
30
SINGLE-ENDED INPUT
2V
P-P
V = 3V
S
40
V = V = 1.5V
0V OCM ICM
R = R = 402
50
F I
V
S
R = 800
50 392 402
LOAD
60 V = 2V
OUTDIFF P-P
3V
0.1F
70
54.9
SECOND
80
SIGNAL
1V
P-P
THIRD
GENERATOR
90
1.5V
+
V
OCM
100
LTC6403-1
0.01F
110
1.5V
120
1V
P-P
1 10 100
64031 TA01
FREQUENCY (MHz)
64031 TA01b
422 402
64031fb
1
For more information www.linear.com/LTC6403-1
DISTORTION (dBc)LTC6403-1
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION
(Note 1)
TOP VIEW
+
Total Supply Voltage (V to V ) ................................5.5V
Input Voltage
+
16 15 14 13
(+IN, IN, V , SHDN) (Note 2) ................... V to V
OCM
SHDN 1 12 V
Input Current
+ +
V 2 11 V
(+IN, IN, V , SHDN) (Note 2) ..................... 10mA 17
OCM
+
V 3 10 V
Output Short-Circuit Duration (Note 3) ............ Indefinite
V 4 9 V
OCM
Operating Temperature Range (Note 4)
5 6 7 8
LTC6403C-1/LTC6403I-1......................40C to 85C
LTC6403H-1 ....................................... 40C to 125C
UD PACKAGE
Specified Temperature Range (Note 5)
16-LEAD (3mm 3mm) PLASTIC QFN
T = 150C, = 160C/W, = 4.2C/W
LTC6403C-1/LTC6403I-1......................40C to 85C
JMAX JA JC
EXPOSED PAD (PIN 17) IS V , MUST BE SOLDERED TO PCB
LTC6403H-1 ....................................... 40C to 125C
Junction Temperature ........................................... 150C
Storage Temperature Range .................. 65C to 150C
ORDER INFORMATION