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LTC2311IMSE-12 Datasheet

5Msps Differential Input ADC

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LTC2311-12
FEATURES
12-Bit + Sign, 5Msps
Differential Input ADC with Wide
Input Common Mode Range
DESCRIPTION
n 5Msps Throughput Rate
n ±0.25LSB INL (Typ), ±1LSB INL Guaranteed
n Guaranteed 12-Bit, No Missing Codes
n 8VP-P Differential Inputs with Wide Input Common
Mode Range
n 73dB SNR (Typ) at fIN = 2.2MHz
n –85dB THD (Typ) at fIN = 2.2MHz
n Guaranteed Operation –40°C to 125°C
n Single 3.3V or 5V Supply
n Low Drift (20ppm/°C Max) 2.048V or 4.096V Internal
Reference with 1.25V External Reference Input
n 1.8V to 2.5V I/O Voltages
n CMOS or LVDS SPI-Compatible Serial I/O
n Power Dissipation 50mW at VDD = 5V (Typ)
n Small 16-Lead (4mm × 5mm) MSOP Package
n AEC-Q100 Qualified for Automotive Applications
APPLICATIONS
n High Speed Data Acquisition Systems
n Communications
n Remote Data Acquisition
n Imaging
n Optical Networking
n Automotive
n Multiphase Motor Control
The LTC®2311-12 is a low noise, high speed 12-bit +
sign successive approximation register (SAR) ADC with
differential inputs and wide input common mode range.
Operating from a single 3.3V or 5V supply, the LTC2311-
12 has an 8VP-P differential input range, making it ideal
for applications which require a wide dynamic range with
high common mode rejection. The LTC2311-12 achieves
±0.25LSB INL typical, no missing codes at 12 bits and
73dB SNR typical.
The LTC2311-12 has an onboard low drift (20ppm/°C max)
2.048V or 4.096V temperature compensated reference
and provides an external 1.25V buffered reference input.
The LTC2311-12 also has a high speed SPI-compatible
serial interface that supports CMOS or LVDS. The fast
5Msps throughput with one-cycle latency makes the
LTC2311-12 ideally suited for a wide variety of high speed
applications. The LTC2311-12 dissipates only 50mW with
a 5V supply and offers nap and sleep modes to reduce
the power consumption for further power savings during
inactive periods.
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
DIFFERENTIAL INPUTS
NO CONFIGURATION REQUIRED
IN+, IN
3.3V OR 5V
1µF
ARBITRARY
0V
DIFFERENTIAL
25Ω
0V
VDD REFOUT
AIN+
LTC2311-12
47pF
REFIN
BIPOLAR
UNIPOLAR
25Ω
0V
0V
AIN–
CMOS/LVDS
GND
SDO
SCK
CNV
OVDD
10µF
10µF
LVDS OR CMOS
CONFIGURABLE
I/O
1.8V TO 2.5V
1µF
231112 TA01a
Document Feedback
For more information www.analog.com
16k Point FFT fSMPL = 5Msps, fIN = 2.2MHz
0
SNR = 73.3dB
–20
THD = –85dB
SINAD = 73.1dB
SFDR = 91dB
–40
–60
–80
–100
–120
–140
0
0.5
1
1.5
FREQUENCY (MHz)
2
2.5
231112 TA01b
Rev. A
1


Analog Devices Semiconductor Electronic Components Datasheet

LTC2311IMSE-12 Datasheet

5Msps Differential Input ADC

No Preview Available !

LTC2311-12
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2)
Supply Voltage (VDD)...................................................6V
Supply Voltage (OVDD).................................................3V
Analog Input Voltage
AIN+, AIN– (Note 3).................... –0.3V to (VDD + 0.3V)
REFIN, REFOUT........................ –0.3V to (VDD + 0.3V)
CNV (Note 15)........................... –0.3V to (VDD + 0.3V)
Digital Input Voltage
(Note 3)........................... (GND – 0.3V) to (OVDD + 0.3V)
Digital Output Voltage
(Note 3)........................... (GND – 0.3V) to (OVDD + 0.3V)
Power Dissipation................................................200mW
Operating Temperature Range
LTC2311C.................................................. 0°C to 70°C
LTC2311I...............................................–40°C to 85°C
LTC2311H........................................... –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
GND 1
REFIN 2
REFOUT 3
VDD 4
GND 5
AIN+ 6
AIN– 7
GND 8
TOP VIEW
17
GND
16 SCK+
15 SCK
14 SDO+
13 SDO
12 OVDD
11 GND
10 CMOS/LVDS
9 CNV
MSE PACKAGE
16-LEAD (4mm × 5mm) PLASTIC MSOP
TJMAX = 150°C, θJA = 40°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2311CMSE-12#PBF LTC2311CMSE-12#TRPBF 231112
16-Lead Plastic MSOP
0°C to 70°C
LTC2311IMSE-12#PBF LTC2311IMSE-12#TRPBF 231112
16-Lead Plastic MSOP
–40°C to 85°C
LTC2311HMSE-12#PBF LTC2311HMSE-12#TRPBF 231112
16-Lead Plastic MSOP
–40°C to 125°C
AUTOMOTIVE PRODUCTS
LTC2311IMSE-12#WPBF LTC2311IMSE-12#WTRPBF 231112
16-Lead Plastic MSOP
–40°C to 85°C
LTC2311HMSE-12#WPBF LTC2311HMSE-12#WTRPBF 231112
16-Lead Plastic MSOP
–40°C to 125°C
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
**Versions of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These
models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your
local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for
these models.
Rev. A
2
For more information www.analog.com


Part Number LTC2311IMSE-12
Description 5Msps Differential Input ADC
Maker Analog Devices
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