Linear Technology LTC2370-16 with LTC6655-5/LT6202: 16-Bit, 2Msps, Pseudo-Differential Unipolar SAR ADC with 94dB SNR. Req DC718 or DC590 DC1813A-A Ficha De Dados
Códigos do produto
DC1813A-A
LTC2370-16
1
237016fa
16-Bit, 2Msps, Pseudo-
Differential Unipolar SAR
ADC with 94dB SNR
TYPICAL APPLICATION
FEATURES
DESCRIPTION
The LTC
®
2370-16 is a low noise, low power, high speed
16-bit successive approximation register (SAR) ADC.
Operating from a 2.5V supply, the LTC2370-16 has a 0V
to V
REF
pseudo-differential unipolar input range with V
REF
ranging from 2.5V to 5.1V. The LTC2370-16 consumes
only 19mW and achieves ±0.85LSB INL maximum, no
missing codes at 16 bits with 94dB SNR.
The LTC2370-16 has a high speed SPI-compatible serial
The LTC2370-16 has a high speed SPI-compatible serial
interface that supports 1.8V, 2.5V, 3.3V and 5V logic while
also featuring a daisy-chain mode. The fast 2Msps through-
put with no cycle latency makes the LTC2370-16 ideally
suited for a wide variety of high speed applications. An
internal oscillator sets the conversion time, easing external
timing considerations. The LTC2370-16 automatically pow-
ers down between conversions, leading to reduced power
dissipation that scales with the sampling rate.
32k Point FFT f
S
= 2Msps, f
IN
= 2kHz
APPLICATIONS
n
2Msps Throughput Rate
n
±0.85LSB INL (Max)
n
Guaranteed 16-Bit No Missing Codes
n
Low Power: 19mW at 2Msps, 19µW at 2ksps
n
94dB SNR (Typ) at f
IN
= 2kHz
n
–112dB THD (Typ) at f
IN
= 2kHz
n
Guaranteed Operation to 125°C
n
2.5V Supply
n
Pseudo-Differential Unipolar Input Range: 0V to V
REF
n
V
REF
Input Range from 2.5V to 5.1V
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-Lead 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 and
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Protected by U.S. Patents, including 7705765.
5.1Ω
V
REF
0V
10nF
–
+
SAMPLE CLOCK
237016 TA01a
10µF
0.1µF
2.5V
REF
1.8V TO 5V
2.5V TO 5.1V
47µF
(X5R, 0805 SIZE)
REF
GND
CHAIN
RDL/SDI
SDO
SCK
BUSY
CNV
LTC2370-16
LT
®
6202
V
DD
OV
DD
IN
+
IN
–
FREQUENCY (kHz)
0 100 200 300 400
800 900 1000
700
600
500
–180
AMPLITUDE (dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
237016 TA01b
SNR = 94dB
THD = –112dB
SINAD = 93.9dB
SFDR = 117dB