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LTC2393-16
1
239316fa
TYPICAL APPLICATION
DESCRIPTION
16-Bit, 1Msps SAR ADC
With 94dB SNR
The LTC
2393-16 is a low noise, high speed 16-bit suc-
cessive approximation register (SAR) ADC. Operating
from a single 5V supply, the LTC2393-16 supports a large
±4.096V fully differential input range, making it ideal for
high performance applications which require maximum
dynamic range. The LTC2393-16 achieves ±2LSB INL
max, no missing codes at 16-bits and 94.2dB SNR (typ).
The LTC2393-16 includes a precision internal reference
with a guaranteed 0.5% initial accuracy and a ±20ppm/°C
(max) temperature coefficient. Fast 1Msps throughput with
no cycle latency in both parallel and serial interface modes
makes the LTC2393-16 ideally suited for a wide variety
of high speed applications. An internal oscillator sets the
conversion time, easing external timing considerations.
The LTC2393-16 dissipates only 140mW at 1Msps, while
both nap and sleep power-down modes are provided to
further reduce power during inactive periods.
FEATURES
APPLICATIONS
n 1Msps Throughput Rate
n ±2LSB INL (Max)
n Guaranteed 16-Bit No Missing Codes
n 94.2dB SNR (Typ) at fIN = 20kHz
n Guaranteed Operation to 125°C
n Single 5V Supply
n 1.8V to 5V I/O Voltages
n 140mW Power Dissipation
n ±4.096V Differential Input Range
n Internal Reference (20ppm/°C Max)
n No Pipeline Delay, No Cycle Latency
n Parallel and Serial Interface
n Internal Conversion Clock
n 48-Lead 7mm × 7mm LQFP and QFN Packages
n Medical Imaging
n High Speed Data Acquisition
n Digital Signal Processing
n Industrial Process Control
n Instrumentation
n ATE
16k Point FFT fS = 1Msps,
fIN = 20kHz
FREQUENCY (kHz)
0
–180
AMPLITUDE
(dBFS)
–160
–120
–100
–80
200
400
500
0
239316 G08
–140
100
300
–60
–40
–20
SNR = 94.2dB
THD
–105dB
SINAD = 93.9dB
SFDR = 108dB
5V
0.1μF
10μF
5V
0.1μF
10μF
SER/PAR
BYTESWAP
OB/2C
CS
RD
BUSY
PARALLEL
OR
SERIAL
INTERFACE
OGND
239316 TA01
IN–
IN+
2200pF
249Ω
ANALOG INPUT
0V TO 4.096V
SINGLE-ENDED-
TO-DIFFERENTIAL
DRIVER
GND
RESET
CNVST PD
SAMPLE CLOCK
REFOUT
REFIN
AVP
DVP
LTC2393-16
OVP
1.8V TO 5V
16 BIT
VCM
1μF
10μF
4.7μF
LT6350
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.
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