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Linear Technology Electronic Components Datasheet

LTC6362 Datasheet

Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver

No Preview Available !

LTC6362 pdf
LTC6362
FEATURES
Precision, Low Power
Rail-to-Rail Input/Output
Differential Op Amp/SAR
ADC Driver
DESCRIPTION
n 1mA Supply Current
n Single 2.8V to 5.25V supply
n Fully Differential Input and Output
n 200μV Max Offset Voltage
n 260nA Max Input Bias Current
n Fast Settling: 550ns to 18-Bit, 8VP-P Output
n Low Distortion: –116dBc at 1kHz, 8VP-P
n Rail-to-Rail Inputs and Outputs
n 3.9nV/√Hz Input-Referred Noise
n 180MHz Gain-Bandwidth Product
n 34MHz –3dB Bandwidth
n Low Power Shutdown: 70µA
n 8-Lead MSOP and 3mm × 3mm 8-Lead DFN Packages
APPLICATIONS
n 16-Bit and 18-Bit SAR ADC Drivers
n Single-Ended-to-Differential Conversion
n Low Power Pipeline ADC Driver
n Differential Line Drivers
n Battery-Powered Instrumentation
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.
The LTC®6362 is a low power, low noise differential op
amp with rail-to-rail input and output swing that has been
optimized to drive low power SAR ADCs. The LTC6362
draws only 1mA of supply current in active operation, and
features a shutdown mode in which the current consump-
tion is reduced to 70μA.
The amplifier may be configured to convert a single-
ended input signal to a differential output signal, and is
capable of being operated in an inverting or noninverting
configuration.
Low offset voltage, low input bias current, and a stable
high impedance configuration make this amplifier suit-
able for use not only as an ADC driver but also earlier in
the signal chain, to convert a precision sensor signal to
a balanced (differential) signal for processing in noisy
industrial environments.
The LTC6362 is available in an 8-lead MSOP package and
also in a compact 3mm × 3mm 8-pin leadless DFN pack-
age, and operates with guaranteed specifications over a
–40°C to 125°C temperature range.
TYPICAL APPLICATION
DC-Coupled Interface from a Ground-Referenced
Single-Ended Input to an LTC2379-18 SAR ADC
1k
5V
3.9nF
5V 2.5V
VIN
1k
0.1µF
VOCM
SHDN
–+
LTC6362
+–
35.7Ω
35.7Ω
3.9nF
AIN+ VREF
VDD
LTC2379-18
SAR ADC
AIN–
18-BIT
1.6Msps
3.9nF
GND
1k 1k
6362 TA01a
LTC6362 Driving LTC2379-18
fIN = 2kHz, –1dBFS, 16384-Point FFT
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
–150
0
VS = 5V, 0V
VOUTDIFF = 8.9VP-P
HD2 = –116.0dBc
HD3 = –114.9dBc
SFDR = 110.1dB
THD = –108.0dB
SNR = 101.2dB
SINAD = 99.9dB
100 200 300 400 500 600 700 800
FREQUENCY (kHz)
6362 TA01b
6362fa
1


Linear Technology Electronic Components Datasheet

LTC6362 Datasheet

Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver

No Preview Available !

LTC6362 pdf
LTC6362
ABSOLUTE MAXIMUM RATINGS (Note 1)
Total Supply Voltage (V+ – V)..................................5.5V
Input Current (+IN, –IN, VOCM, SHDN) (Note 2).... ±10mA
Output Short-Circuit Duration (Note 3)............. Indefinite
Operating Temperature Range (Note 4)
LTC6362C/LTC6362I.............................–40°C to 85°C
LTC6362H........................................... –40°C to 125°C
Specified Temperature Range (Note 5)
LTC6362C................................................. 0°C to 70°C
LTC6362I..............................................–40°C to 85°C
LTC6362H........................................... –40°C to 125°C
Maximum Junction Temperature........................... 150°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
TOP VIEW
–IN 1
VOCVM+
2
3
+OUT 4
8 +IN
7 SHDN
6 V
5 –OUT
MS8 PACKAGE
8-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 273°C/W, θJC = 45°C/W
TOP VIEW
–IN 1
8 +IN
VOCM 2
V+ 3
7 SHDN
6 V
+OUT 4 V95 –OUT
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX =
EXPOSED PAD
1(P5I0N°C9,)θISJAV=,3M9.U7°SCT/WB,EθSJOC L=D4E5R°ECD/WTO
PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
SPECIFIED TEMPERATURE RANGE
LTC6362CMS8#PBF
LTC6362CMS8#TRPBF LTGCN
8-Lead Plastic MSOP
0°C to 70°C
LTC6362IMS8#PBF
LTC6362IMS8#TRPBF LTGCN
8-Lead Plastic MSOP
–40°C to 85°C
LTC6362HMS8#PBF
LTC6362HMS8#TRPBF LTGCN
8-Lead Plastic MSOP
–40°C to 125°C
LTC6362CDD#PBF
LTC6362CDD#TRPBF
LGCM
8-Lead (3mm × 3mm) Plastic DFN 0°C to 70°C
LTC6362IDD#PBF
LTC6362IDD#TRPBF
LGCM
8-Lead (3mm × 3mm) Plastic DFN –40°C to 85°C
LTC6362HDD#PBF
LTC6362HDD#TRPBF
LGCM
8-Lead (3mm × 3mm) Plastic DFN –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.
Consult LTC Marketing for information on non-standard lead based finish parts.
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/
6362fa
2


Part Number LTC6362
Description Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver
Maker Linear Technology
Total Page 22 Pages
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