LTC2381-16
PRODUCTION16-Bit, 250ksps, Low Power SAR ADC with Serial Interface
- Part Models
- 10
- 1ku List Price
- Starting From $8.55
Part Details
- 250ksps Throughput Rate
- ±2LSB INL (Max)
- Guaranteed 16-Bit No Missing Codes
- Low Power: 3.25mW at 250ksps, 13μW at 1ksps
- 92dB SNR (typ) at fIN = 20kHz
- Extended Acquisition Time of 3.25μs Allows Use of Lower Power Drivers
- Guaranteed Operation to 125°C
- 2.5V Supply
- Fully Differential Input Range ±2.5V
- External 2.5V Reference Input
- No Pipeline Delay, No Cycle Latency
- 1.8V to 5V I/O Voltages
- SPI-Compatible Serial I/O with Daisy-Chain Mode
- Internal Conversion Clock
- 16-pin MSOP and 4mm × 3mm DFN Packages
The LTC2381-16 is a low noise, low power, high speed 16-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2381-16 has a ±2.5V fully differential input range. The LTC2381-16 consumes only 3.25mW and achieves ±2LSB INL max, no missing codes at 16-bits and 92dB SNR.
The LTC2381-16 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 250ksps throughput with no cycle latency makes the LTC2381-16 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2381-16 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.
The LTC2381-16 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 3.25μs allows the use of extremely low power ADC drivers.
Applications
- Medical Imaging
- High Speed Data Acquisition
- Portable or Compact Instrumentation
- Industrial Process Control
- Low Power Battery-Operated Instrumentation
- ATE
Documentation
Data Sheet 1
Reliability Data 1
User Guide 1
Product Selector Card 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC2381CDE-16#PBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC2381CDE-16#TRPBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC2381CMS-16#PBF | 16-Lead MSOP | ||
| LTC2381CMS-16#TRPBF | 16-Lead MSOP | ||
| LTC2381HMS-16#PBF | 16-Lead MSOP | ||
| LTC2381HMS-16#TRPBF | 16-Lead MSOP | ||
| LTC2381IDE-16#PBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC2381IDE-16#TRPBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC2381IMS-16#PBF | 16-Lead MSOP | ||
| LTC2381IMS-16#TRPBF | 16-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3) |
||
| LTC2381CMS-16#PBF | PRODUCTION | |
| LTC2381CMS-16#TRPBF | PRODUCTION | |
| LTC2381HMS-16#PBF | PRODUCTION | |
| LTC2381HMS-16#TRPBF | PRODUCTION | |
| LTC2381IMS-16#PBF | PRODUCTION | |
| LTC2381IMS-16#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0132 Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC2381CMS-16#PBF | PRODUCTION | |
| LTC2381CMS-16#TRPBF | PRODUCTION | |
| LTC2381HMS-16#PBF | PRODUCTION | |
| LTC2381HMS-16#TRPBF | PRODUCTION | |
| LTC2381IMS-16#PBF | PRODUCTION | |
| LTC2381IMS-16#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 2
LinearLab Tools
A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.
PScope
The PScope System is a USB-based product demonstration and data acquisition system for use with high performance ADCs and signal chain receiver family. PScope allows users to evaluate the SNR, SFDR, THD, as well as other key parameters, quickly and easily.
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| I²C Isolators 1 | ||
| LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
| Single Channel A/D Converters 2 | ||
| LTC2376-16 | PRODUCTION | 16-Bit, 250ksps, Low Power SAR ADC with 97dB SNR |
| LTC2376-18 | PRODUCTION | 18-Bit, 250ksps, Low Power SAR ADC with 102dB SNR |
| SPI Isolators 1 | ||
| LTM2893 | PRODUCTION | 100MHz Isolated ADC Serial Interface |
Tools & Simulations
Linduino 3
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
LTC2381CMS-16 Demo Board | 2.5V 16-Bit 250Ksps Serial SPI SAR ADC, Requires DC718 or DC590