參數(shù)資料
型號(hào)： LTC2380IDE-16#PBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： ADC
英文描述： SUCCESSIVE APPROXIMATION ADC, PDSO16
封裝： 4 X 3 MM, LEAD FREE, PLASTIC, MO-229WGED-3, DFN-16
文件頁(yè)數(shù)： 1/24頁(yè)
文件大小： 545K
代理商： LTC2380IDE-16#PBF
LTC2380-16
1
238016f
Typical applicaTion
FeaTures
DescripTion
16-Bit, 2Msps, Low Power
SAR ADC with 96.2dB SNR
The LTC2380-16 is a low noise, low power, high speed
16-bit successive approximation register (SAR) ADC.
Operating from a 2.5V supply, the LTC2380-16 has a
±VREF fully differential input range with VREF ranging from
2.5V to 5.1V. The LTC2380-16 consumes only 19mW and
achieves ±0.6LSB INL maximum, no missing codes at
16-bits with 96.2dB SNR.
The LTC2380-16 has a high speed SPI-compatible serial
interface that supports 1.8V, 2.5V, 3.3V and 5V logic while
alsofeaturingadaisychainmode.Thefast2Mspsthrough-
put with no cycle latency makes the LTC2380-16 ideally
suited for a wide variety of high speed applications. An
internaloscillatorsetstheconversiontime,easingexternal
timingconsiderations.TheLTC2380-16automaticallypow-
ers down between conversions, leading to reduced power
dissipation that scales with the sampling rate.
The LTC2380-16 features a unique digital gain compres-
sion(DGC)function,whicheliminatesthedriveramplifier’s
negative supply while preserving the full resolution of the
ADC. When enabled, the ADC performs a digital scaling
function that maps zero-scale code from 0V to 0.1 VREF
and full-scale code from VREF to 0.9 VREF. For a typical
reference voltage of 5V, the full-scale input range is now
0.5V to 4.5V, which provides adequate headroom for
powering the driving amplifier from a single 5.5V supply.
32k Point FFT fS = 2Msps, fIN = 2kHz
applicaTions
n
2Msps Throughput Rate
n
±0.6LSB INL (Max)
n
Guaranteed 16-Bit No Missing Codes
n
Low Power: 19mW at 2Msps, 19W at 2ksps
n
96.2dB SNR (typ) at fIN = 2kHz
n
–117dB THD (typ) at fIN = 2kHz
n
Digital Gain Compression (DGC)
n
Guaranteed Operation to 125°C
n
2.5V Supply
n
Fully Differential Input Range ±VREF
n
VREF 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 Daisychain 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
FREQUENCY (kHz)
0 100 200 300 400
1000
900
800
700
600
500
–180
AMPLITUDE
(dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
238016 TA02
SNR = 96.4dB
THD = –119dB
SINAD = 96.3dB
SFDR = 122dB
VREF
20
VREF
0V
VREF
0V
20
3300pF
SAMPLE CLOCK
238016 TA01
10F
0.1F
2.5V
REF
1.8V TO 5V
2.5V TO 5.1V
47F
(X5R, 0805 SIZE)
REF
GND
CHAIN
RDL/SDI
SDO
SCK
BUSY
CNV
REF/DGC
LTC2380-16
VDD
OVDD
IN+
IN–
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.
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