LTC6362
Precision, Low Power
Rail-to-Rail Input/Output
Differential Op Amp/SAR
ADC Driver
FEATURES DESCRIPTION
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1mA Supply Current
The LTC 6362 is a low power, low noise differential op
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Single 2.8V to 5.25V supply
amp with rail-to-rail input and output swing that has been
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Fully Differential Input and Output
optimized to drive low power SAR ADCs. The LTC6362
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200V Max Offset Voltage
draws only 1mA of supply current in active operation, and
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260nA Max Input Bias Current
features a shutdown mode in which the current consump-
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Fast Settling: 550ns to 18-Bit, 8V Output
tion is reduced to 70A.
P-P
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Low Distortion: 116dBc at 1kHz, 8V
P-P
The amplifier may be configured to convert a single-
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Rail-to-Rail Inputs and Outputs
ended input signal to a differential output signal, and is
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3.9nV/Hz Input-Referred Noise
capable of being operated in an inverting or noninverting
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180MHz Gain-Bandwidth Product
configuration.
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34MHz 3dB Bandwidth
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Low Power Shutdown: 70A Low offset voltage, low input bias current, and a stable
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8-Lead MSOP and 3mm 3mm 8-Lead DFN Packages high impedance configuration make this amplifier suit-
able for use not only as an ADC driver but also earlier in
APPLICATIONS
the signal chain, to convert a precision sensor signal to
a balanced (differential) signal for processing in noisy
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16-Bit and 18-Bit SAR ADC Drivers
industrial environments.
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Single-Ended-to-Differential Conversion
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Low Power Pipeline ADC Driver
The LTC6362 is available in an 8-lead MSOP package and
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Differential Line Drivers
also in a compact 3mm 3mm 8-pin leadless DFN pack-
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Battery-Powered Instrumentation
age, and operates with guaranteed specifications over a
40C to 125C temperature range.
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.
TYPICAL APPLICATION
LTC6362 Driving LTC2379-18
f = 2kHz, 1dBFS, 16384-Point FFT
IN
0
DC-Coupled Interface from a Ground-Referenced
V = 5V, 0V
10 S
Single-Ended Input to an LTC2379-18 SAR ADC
V = 8.9V
OUTDIFF P-P
20
HD2 = 116.0dBc
30
1k HD3 = 114.9dBc
40
5V 2.5V
SFDR = 110.1dB
50
5V
3.9nF THD = 108.0dB
60
SNR = 101.2dB
V V
1k 35.7 REF DD
70
SINAD = 99.9dB
+
+ A 18-BIT
IN
80
V
OCM
LTC2379-18
V 90
LTC6362 3.9nF
IN
SAR ADC
0.1F
SHDN 35.7
100
+ A 1.6Msps
IN
110
GND
3.9nF
120
1k 1k
6362 TA01a
130
140
150
0 100 200 300 400 500 600 700 800
FREQUENCY (kHz)
6362 TA01b
6362fa
1
AMPLITUDE (dBFS)LTC6362
ABSOLUTE MAXIMUM RATINGS (Note 1)
+
Total Supply Voltage (V V ) .................................5.5V Specified Temperature Range (Note 5)
Input Current (+IN, IN, V , SHDN) (Note 2) ... 10mA LTC6362C ................................................ 0C to 70C
OCM
Output Short-Circuit Duration (Note 3) ............ Indefinite LTC6362I .............................................40C to 85C
Operating Temperature Range (Note 4) LTC6362H .......................................... 40C to 125C
LTC6362C/LTC6362I ............................40C to 85C Maximum Junction Temperature .......................... 150C
LTC6362H .......................................... 40C to 125C Storage Temperature Range .................. 65C to 150C
PIN CONFIGURATION
TOP VIEW
TOP VIEW
IN 1 8 +IN
IN 1 8 +IN
V 2 7 SHDN
OCM
V 2 7 SHDN
OCM
+
+
V 3 6 V
V 3 6 V
5 OUT
+OUT 4 9
+OUT OUT
4 5
V
MS8 PACKAGE
8-LEAD PLASTIC MSOP
DD PACKAGE
T = 150C, = 273C/W, = 45C/W
JMAX JA JC
8-LEAD (3mm 3mm) PLASTIC DFN
T = 150C, = 39.7C/W, = 45C/W
JMAX JA JC
EXPOSED PAD (PIN 9) IS V , MUST BE SOLDERED TO 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 0C to 70C
LTC6362IMS8#PBF LTC6362IMS8#TRPBF LTGCN 8-Lead Plastic MSOP 40C to 85C
LTC6362HMS8#PBF LTC6362HMS8#TRPBF LTGCN 8-Lead Plastic MSOP 40C to 125C
LTC6362CDD#PBF LTC6362CDD#TRPBF LGCM 8-Lead (3mm 3mm) Plastic DFN 0C to 70C
LTC6362IDD#PBF LTC6362IDD#TRPBF LGCM 8-Lead (3mm 3mm) Plastic DFN 40C to 85C
LTC6362HDD#PBF LTC6362HDD#TRPBF LGCM 8-Lead (3mm 3mm) Plastic DFN 40C to 125C
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: