LTC2310-14
Features
14-Bit + Sign, 2Msps
Differential Input ADC with Wide
Input Common Mode Range
Description
nn 2Msps Throughput Rate
nn ±2.5LSB INL Guaranteed
nn Guaranteed 14-Bit, No Missing Codes
nn 8VP-P Differential Inputs with Wide Input Common
Mode Range
nn 82dB SNR (Typ) at fIN = 500kHz
nn –93dB THD (Typ) at fIN = 500kHz
nn No Cycle Latency
nn Guaranteed Operation –40°C to 125°C
nn Single 3.3V or 5V Supply
nn Low Drift (20ppm/°C Max) 2.048V or 4.096V Internal
Reference with 1.25V External Reference Input
nn 1.8V to 2.5V I/O Voltages
nn CMOS or LVDS SPI-Compatible Serial I/O
nn Power Dissipation 35mW at VDD = 5V (Typ)
nn Small 16-Lead (4mm × 5mm) MSOP Package
Applications
nn High Speed Data Acquisition Systems
nn Communications
nn Remote Data Acquisition
nn Imaging
nn Optical Networking
nn Automotive
nn Multiphase Motor Control
The LTC®2310-14 is a low noise, high speed 14-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 LTC2310-14
has an 8VP-P differential input range, making it ideal for
applications which require a wide dynamic range with
high common mode rejection. The LTC2310-14 achieves
±2.5LSB INL guaranteed, no missing codes at 14 bits and
82dB SNR typical.
The LTC2310-14 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
LTC2310-14 also has a high speed SPI-compatible serial
interface that supports CMOS or LVDS. The fast 2Msps
throughput with no cycle latency makes the LTC2310-14
ideally suited for a wide variety of high speed applications.
The LTC2310-14 dissipates only 35mW with a 5V supply
and offers nap and sleep modes to reduce the power
consumption for further power savings during inactive
periods.
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
DIFFERENTIAL INPUTS
NO CONFIGURATION REQUIRED
IN+, IN–
ARBITRARY
VDD
DIFFERENTIAL
VDD
25Ω
0V
0V
BIPOLAR
VDD
UNIPOLAR
VDD
25Ω
0V
0V
3.3V OR 5V
1µF
AIN+
VDD REFOUT
LTC2310-14
47pF
REFIN
AIN–
CMOS/LVDS
GND
SDO
SCK
CNV
OVDD
10µF
10µF
LVDS OR CMOS
CONFIGURABLE
I/O
1.8V TO 2.5V
1µF
231014 TA01a
32k Point FFT fSMPL = 2Msps, fIN = 500kHz
0
SNR = 82dB
–20
THD = –93dB
SINAD = 81.7dB
SFDR = 97dB
–40
–60
–80
–100
–120
–140
0
0.2
0.4
0.6
0.8
1.0
FREQUENCY (MHz)
231014 TA01b
231014f
For more information www.linear.com/LTC2310-14
1
