Linear Technology LTC2382CMS-16, 2.5V 16-bit 500Ksps Serial SPI SAR ADC. Req DC718 or DC590 DC1571A-B DC1571A-B Ficha De Dados
Códigos do produto
DC1571A-B
LTC2382-16
1
238216f
TYPICAL APPLICATION
FEATURES
DESCRIPTION
16-Bit, 500ksps, Low Power
SAR ADC with Serial Interface
The LTC
®
2382-16 is a low noise, low power, high speed
16-bit successive approximation register (SAR) ADC.
Operating from a 2.5V supply, the LTC2382-16 has a
±2.5V fully differential input range. The LTC2382-16
consumes only 6.5mW and achieves ±2LSB INL max, no
missing codes at 16-bits and 92dB SNR.
Operating from a 2.5V supply, the LTC2382-16 has a
±2.5V fully differential input range. The LTC2382-16
consumes only 6.5mW and achieves ±2LSB INL max, no
missing codes at 16-bits and 92dB SNR.
The LTC2382-16 has a high speed SPI-compatible serial
interface that supports 1.8V, 2.5V, 3.3V and 5V logic
while also featuring a daisychain mode. The fast 500ksps
throughput with no cycle latency makes the LTC2382-16
ideally suited for a wide variety of high speed applica-
tions. An internal oscillator sets the conversion time,
easing external timing considerations. The LTC2382-16
automatically powers down between conversions, lead-
ing to reduced power dissipation that scales with the
sampling rate.
interface that supports 1.8V, 2.5V, 3.3V and 5V logic
while also featuring a daisychain mode. The fast 500ksps
throughput with no cycle latency makes the LTC2382-16
ideally suited for a wide variety of high speed applica-
tions. An internal oscillator sets the conversion time,
easing external timing considerations. The LTC2382-16
automatically powers down between conversions, lead-
ing to reduced power dissipation that scales with the
sampling rate.
The LTC2382-16 features a proprietary sampling
architecture that enables the ADC to begin acquiring the
next sample during the current conversion. The resulting
extended acquisition time of 1.25μs allows the use of
extremely low power ADC drivers.
architecture that enables the ADC to begin acquiring the
next sample during the current conversion. The resulting
extended acquisition time of 1.25μs allows the use of
extremely low power ADC drivers.
32k Point FFT f
S
= 500ksps, f
IN
= 20kHz
APPLICATIONS
n
500ksps Throughput Rate
n
±2LSB INL (Max)
n
Guaranteed 16-Bit No Missing Codes
n
Low Power: 6.5mW at 500ksps, 13μW at 1ksps
n
92dB SNR (typ) at f
IN
= 20kHz
n
Extended Acquisition Time of 1.25μs Allows Use of
Lower Power Drivers
n
Guaranteed Operation to 125°C
n
2.5V Supply
n
Fully Differential Input Range ±2.5V
n
External 2.5V Reference Input
n
No Pipeline Delay, No Cycle Latency
n
1.8V to 5V I/O Voltages
n
SPI-Compatible Serial I/O with Daisy-Chain Mode
n
Internal Conversion Clock
n
16-pin MSOP and 4mm × 3mm DFN Packages
n
Medical Imaging
n
High Speed Data Acquisition
n
Portable or Compact Instrumentation
n
Industrial Process Control
n
Low Power Battery-Operated Instrumentation
n
ATE
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.
Technology Corporation. All other trademarks are the property of their respective owners.
FREQUENCY (kHz)
0
50
100
150
200
250
–180
AMPLITUDE (dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
238216 TA02a
SNR = 92.2dB
THD = –106dB
SINAD = 92dB
SFDR = 107dB
THD = –106dB
SINAD = 92dB
SFDR = 107dB
LT6350
ANALOG INPUT
0V TO 2.5V
SINGLE-ENDED-
TO-DIFFERENTIAL
DRIVER
50Ω
100Ω
100Ω
50Ω
3300pF
10μF
0.1μF
2.5V
REF
GND
1.8V TO 5V
SAMPLE CLOCK
CHAIN
RDL/SDI
SDO
SCK
BUSY
CNV
LTC2382-16
IN
+
V
DD
OV
DD
IN
–
2.5V
47μF
(X5R, 0805 SIZE)
(X5R, 0805 SIZE)
238216 TA01