Datasheet LTC2382-16 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 16-Bit, 500ksps, Low Power SAR ADC with Serial Interface |
| Pages / Page | 26 / 1 — FEATURES. DESCRIPTION. 500ksps Throughput Rate. ±2LSB INL (Max). … |
| File Format / Size | PDF / 2.1 Mb |
| Document Language | English |
FEATURES. DESCRIPTION. 500ksps Throughput Rate. ±2LSB INL (Max). Guaranteed 16-Bit No Missing Codes
Model Line for this Datasheet
- LTC2382CDE-16#PBF LTC2382CDE-16#PBF LTC2382CDE-16#TRPBF LTC2382CDE-16#TRPBF LTC2382CMS-16#PBF LTC2382CMS-16#PBF LTC2382CMS-16#TRPBF LTC2382CMS-16#TRPBF LTC2382HMS-16#PBF LTC2382HMS-16#PBF LTC2382HMS-16#TRPBF LTC2382HMS-16#TRPBF LTC2382IDE-16#PBF LTC2382IDE-16#PBF LTC2382IDE-16#TRPBF LTC2382IDE-16#TRPBF LTC2382IMS-16#PBF LTC2382IMS-16#PBF LTC2382IMS-16#TRPBF LTC2382IMS-16#TRPBF
Text Version of Document
LTC2382-16 16-Bit, 500ksps, Low Power SAR ADC with Serial Interface
FEATURES DESCRIPTION
n
500ksps Throughput Rate
The LTC®2382-16 is a low noise, low power, high speed n
±2LSB INL (Max)
16-bit successive approximation register (SAR) ADC. n
Guaranteed 16-Bit No Missing Codes
Operating from a 2.5V supply, the LTC2382-16 has a n
Low Power: 6.5mW at 500ksps, 13µW at 1ksps
±2.5V fully differential input range. The LTC2382-16 n
92dB SNR (Typ) at fIN = 20kHz
consumes only 6.5mW and achieves ±2LSB INL max, no n
Extended Acquisition Time of 1.25µs Allows Use of
missing codes at 16-bits and 92dB SNR.
Lower Power Drivers
The LTC2382-16 has a high speed SPI-compatible serial n Guaranteed Operation to 125°C interface that supports 1.8V, 2.5V, 3.3V and 5V logic n 2.5V Supply while also featuring a daisy-chain mode. The fast 500ksps n Fully Differential Input Range ±2.5V throughput with no cycle latency makes the LTC2382-16 n External 2.5V Reference Input ideally suited for a wide variety of high speed applica tions. n No Pipeline Delay, No Cycle Latency An internal oscillator sets the conversion time, easing exter- n 1.8V to 5V I/O Voltages nal timing considerations. The LTC2382-16 automatically n SPI-Compatible Serial I/O with Daisy-Chain Mode powers down between conversions, lead ing to reduced n Internal Conversion Clock power dissipation that scales with the sampling rate. n 16-Pin MSOP and 4mm × 3mm DFN Packages The LTC2382-16 features a proprietary sampling archi-
APPLICATIONS
tecture that enables the ADC to begin acquiring the next n sample during the current conversion. The resulting Medical Imaging n extended acquisition time of 1.25µs allows the use of High Speed Data Acquisition n extremely low power ADC drivers. Portable or Compact Instrumentation n Industrial Process Control 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. n Low Power Battery-Operated Instrumentation n ATE
TYPICAL APPLICATION 32k Point FFT fS = 500ksps, fIN = 20kHz
2.5V 1.8V TO 5V 0 SNR = 92.2dB –20 THD = –106dB 10µF 0.1µF SINAD = 92dB ANALOG INPUT –40 SFDR = 107dB 0V TO 2.5V –60 50Ω 100Ω VDD OVDD CHAIN IN+ RDL/SDI –80 LT6350 SDO 3300pF LTC2382-16 SCK –100 IN– BUSY SAMPLE CLOCK 50Ω 100Ω REF GND CNV AMPLITUDE (dBFS) –120 2.5V 238216 TA01 –140 SINGLE-ENDED- TO-DIFFERENTIAL 47µF –160 DRIVER (X5R, 0805 SIZE) –180 0 50 100 150 200 250 FREQUENCY (kHz) 238216 TA02a 238216fa For more information www.linear.com/LTC2382-16 1
FEATURES DESCRIPTION
n
500ksps Throughput Rate
The LTC®2382-16 is a low noise, low power, high speed n
±2LSB INL (Max)
16-bit successive approximation register (SAR) ADC. n
Guaranteed 16-Bit No Missing Codes
Operating from a 2.5V supply, the LTC2382-16 has a n
Low Power: 6.5mW at 500ksps, 13µW at 1ksps
±2.5V fully differential input range. The LTC2382-16 n
92dB SNR (Typ) at fIN = 20kHz
consumes only 6.5mW and achieves ±2LSB INL max, no n
Extended Acquisition Time of 1.25µs Allows Use of
missing codes at 16-bits and 92dB SNR.
Lower Power Drivers
The LTC2382-16 has a high speed SPI-compatible serial n Guaranteed Operation to 125°C interface that supports 1.8V, 2.5V, 3.3V and 5V logic n 2.5V Supply while also featuring a daisy-chain mode. The fast 500ksps n Fully Differential Input Range ±2.5V throughput with no cycle latency makes the LTC2382-16 n External 2.5V Reference Input ideally suited for a wide variety of high speed applica tions. n No Pipeline Delay, No Cycle Latency An internal oscillator sets the conversion time, easing exter- n 1.8V to 5V I/O Voltages nal timing considerations. The LTC2382-16 automatically n SPI-Compatible Serial I/O with Daisy-Chain Mode powers down between conversions, lead ing to reduced n Internal Conversion Clock power dissipation that scales with the sampling rate. n 16-Pin MSOP and 4mm × 3mm DFN Packages The LTC2382-16 features a proprietary sampling archi-
APPLICATIONS
tecture that enables the ADC to begin acquiring the next n sample during the current conversion. The resulting Medical Imaging n extended acquisition time of 1.25µs allows the use of High Speed Data Acquisition n extremely low power ADC drivers. Portable or Compact Instrumentation n Industrial Process Control 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. n Low Power Battery-Operated Instrumentation n ATE
TYPICAL APPLICATION 32k Point FFT fS = 500ksps, fIN = 20kHz
2.5V 1.8V TO 5V 0 SNR = 92.2dB –20 THD = –106dB 10µF 0.1µF SINAD = 92dB ANALOG INPUT –40 SFDR = 107dB 0V TO 2.5V –60 50Ω 100Ω VDD OVDD CHAIN IN+ RDL/SDI –80 LT6350 SDO 3300pF LTC2382-16 SCK –100 IN– BUSY SAMPLE CLOCK 50Ω 100Ω REF GND CNV AMPLITUDE (dBFS) –120 2.5V 238216 TA01 –140 SINGLE-ENDED- TO-DIFFERENTIAL 47µF –160 DRIVER (X5R, 0805 SIZE) –180 0 50 100 150 200 250 FREQUENCY (kHz) 238216 TA02a 238216fa For more information www.linear.com/LTC2382-16 1
