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LT6402IUD-12#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
1
640212fa
LT6402-12
300MHz Low Distortion, Low
Noise Differential Amplifi er/
ADC Driver (A
V
= 12dB)
The LT
®
6402-12 is a low distortion, low noise differential
amplifi er/ADC driver for use in applications from DC to
300MHz. The LT6402-12 has been designed for ease of
use, with minimal support circuitry required. Exceptionally
low input-referred noise and low distortion (with either
single-ended or differential inputs) make the LT6402-12
an excellent solution for driving high speed 12-bit and
14-bit ADCs. In addition to the normal unfi ltered outputs
(+OUT and –OUT), the LT6402-12 has a built-in 75MHz
differential low pass fi lter and an additional pair of fi ltered
outputs (+OUTFILTERED, –OUTFILTERED) to reduce
external fi ltering components when driving high speed
ADCs. The output common mode voltage is easily set via
the V
OCM
pin, eliminating an output transformer or AC-
coupling capacitors in many applications.
The LT6402-12 is designed to meet the demanding require-
ments of communications transceiver applications. It can
be used as a differential ADC driver, a general-purpose
differential gain block, or in other applications requiring
differential drive. The LT6402-12 can be used in data
acquisition systems required to function at frequencies
down to DC.
The LT6402-12 operates on a 5V supply and consumes 30mA.
It comes in a compact 16-lead 3mm × 3mm QFN package
and operates over a –40°C to 85°C temperature range.
n
Differential ADC Driver for:
Imaging
Communications
n
Differential Driver/Receiver
n
Single Ended to Differential Conversion
n
Differential to Single Ended Conversion
n
Level Shifting
n
IF Sampling Receivers
n
SAW Filter Interfacing/Buffering
n
300 MHz –3dB Bandwidth
n
Fixed Gain of 12dB
n
Low Distortion:
43dBm OIP3, –82dBc HD3 (20MHz, 2V
P-P
)
n
Low Noise:
15dB NF, e
n
= 2.6nV/√Hz (20MHz)
n
Differential Inputs and Outputs
n
Additional Filtered Outputs
n
Adjustable Output Common Mode Voltage
n
DC- or AC-Coupled Operation
n
Minimal Support Circuitry Required
n
Small 0.75mm Profi le 16-Lead 3mm × 3mm QFN
Package
Distortion vs Frequency, Differential Input, No R
LOAD
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
64026 TA01a
IF IN
LT6402-12
–INA
–INB
V
OCM
V
CC
5V
V
EE
+INB
+INA
10Ω
10Ω
LT C
®
2249
0.1μF
0.1μF
0.1μF
0.1μF
+OUT
–OUT
AIN
+
AIN
–
V
CM
FREQUENCY (MHz)
1
–100
DISTORTION (dBc)
–90
–80
–70
–60
–40
10 100
640212 TA01b
–50
FILTERED OUTPUTS
V
OUT
= 2V
P-P
HD3
HD2
LT6402-12
2
640212fa
Total Supply Voltage (V
CCA
/V
CCB
/V
CCC
to
V
EEA
/V
EEB
/V
EEC
) ...................................................5.5V
Input Current (+INA, –INA, +INB, –INB,
V
OCM
, ENABLE) ................................................ ±10mA
Output Current (Continuous)
+OUT, –OUT ...................................................±100mA
+OUTFILTERED, –OUTFILTERED ......................±30mA
Output Short-Circuit Duration (Note 2) ............ Indefi nite
Operating Temperature Range (Note 3).... –40°C to 85°C
Specifi ed Temperature Range (Note 4) .... –40°C to 85°C
Storage Temperature Range ................... –65°C to 125°C
Junction Temperature ........................................... 125°C
(Note 1)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Input/Output Characteristics (+INA, +INB, –INA, –INB, +OUT, –OUT, +OUTFILTERED, –OUTFILTERED)
GDIFF Gain Differential (+OUT, –OUT), V
IN
= ±400mV Differential
l
11.6 12 12.4 dB
V
SWINGMIN
Single-Ended +OUT, –OUT, +OUTFILTERED,
–OUTFILTERED, V
IN
= ±1.2V Differential
l
0.25 0.35
0.5
V
V
V
SWINGMAX
Single-Ended +OUT, –OUT, +OUTFILTERED,
–OUTFILTERED, V
IN
= ±1.2V Differential
l
3.4
3.3
3.6 V
V
V
SWINGDIFF
Output Voltage Swing Differential (+OUT, –OUT), V
IN
= ±1.2V Differential
l
6.1
5.6
7V
P-P
V
P-P
I
OUT
Output Current Drive
l
±30 ±35 mA
V
OS
Input Offset Voltage
l
–6.5
–10
1 6.5
10
mV
mV
TCV
OS
Input Offset Voltage Drift T
MIN
to T
MAX
l
2.5 μV/°C
16 15 14 13
5 6 7 8
TOP VIEW
UD PACKAGE
16-LEAD (3mm × 3mm) PLASTIC QFN
9
10
17
11
12
4
3
2
1V
CCC
V
OCM
V
CCA
V
EEA
V
EEC
ENABLE
V
CCB
V
EEB
+INA
+INB
–INA
–INB
+OUT
+OUTFILTERED
–OUTFILTERED
–OUT
T
JMAX
= 125°C, θ
JA
= 68°C/W, θ
JC
= 4.2°C/W
EXPOSED PAD IS V
EE
(PIN 17)
MUST BE SOLDERED TO THE PCB
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CCA
= V
CCB
= V
CCC
= 5V, V
EEA
= V
EEB
= V
EEC
= 0V, ENABLE = 0.8V, +INA
shorted to +INB (+IN), –INA shorted to –INB (–IN), V
OCM
= 2.2V, Input common mode voltage = 2.2V, no R
LOAD
unless otherwise noted.
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT6402CUD-12#PBF LT6402CUD-12#TRPBF LCBB 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C
LT6402IUD-12#PBF LT6402IUD-12#TRPBF LCBB 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LT6402CUD-12 LT6402CUD-12#TR LCBB 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C
LT6402IUD-12 LT6402IUD-12#TR LCBB 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed 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 specifi cations, go to: http://www.linear.com/tapeandreel/
DC ELECTRICAL CHARACTERISTICS
3
640212fa
LT6402-12
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CCA
= V
CCB
= V
CCC
= 5V, V
EEA
= V
EEB
= V
EEC
= 0V, ENABLE = 0.8V, +INA
shorted to +INB (+IN), –INA shorted to –INB (–IN), V
OCM
= 2.2V, Input common mode voltage = 2.2V, no R
LOAD
unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
VRMIN
Input Voltage Range, MIN Single-Ended
l
0.5 V
I
VRMAX
Input Voltage Range, MAX Single-Ended
l
4.3 V
R
INDIFF
Input Resistance
l
77 100 122
Ω
C
INDIFF
Input Capacitance 1pF
CMRR Common Mode Rejection Ratio Input Common Mode 0.5V to 4.3V
l
42 65 dB
R
OUTDIFF
Output Resistance 0.3
Ω
C
OUTDIFF
Output Capacitance 0.8 pF
Common Mode Voltage Control (V
OCM
Pin)
GCM Common Mode Gain Differential (+OUT, –OUT), V
OCM
= 1.2V to 3.6V
Differential (+OUT, –OUT), V
OCM
= 1.4V to 3.4V
l
0.9
0.9
1 1.1
1.1
V/V
V/V
V
OCMMIN
Output Common Mode Voltage
Adjustment Range, MIN
l
1.2
1.4
V
V
V
OCMMAX
Output Common Mode Voltage
Adjustment Range, MAX
Single-Ended
l
3.6
3.4
V
V
V
OSCM
Output Common Mode Offset
Voltage
Measured from V
OCM
to Average of +OUT and –OUT –30 4 30 mV
I
BIASCM
V
OCM
Input Bias Current
l
515 μA
R
INCM
V
OCM
Input Resistance
l
0.8 3 MΩ
C
INCM
V
OCM
Input Capacitance 1pF
ENABLE Pin
V
IL
ENABLE Input Low Voltage
l
0.8 V
V
IH
ENABLE Input High Voltage
l
2V
I
IL
ENABLE Input Low Current ENABLE = 0.8V
l
0.5 μA
I
IH
ENABLE Input High Current ENABLE = 2V
l
13 μA
Power Supply
V
S
Operating Range
l
4 5 5.5 V
I
S
Supply Current ENABLE = 0.8V
l
24 30 37 mA
I
SDISABLED
Supply Current (Disabled) ENABLE = 2V
l
250 500 μA
PSRR Power Supply Rejection Ratio 4V to 5.5V
l
55 90 dB
DC ELECTRICAL CHARACTERISTICS
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LT6402IUD-12#TRPBF

Mfr. #:
Buy LT6402IUD-12#TRPBF
Manufacturer:
Analog Devices Inc.
Description:
High Speed Operational Amplifiers 300MHz L Dist, L N Diff Amp/ADC Drvr (AV
Lifecycle:
New from this manufacturer.
Delivery:
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