LTC2377-18
PRODUCTION18-Bit, 500ksps, Low Power SAR ADC with 102dB SNR
- Part Models
- 10
- 1ku List Price
- Starting From $25.11
Part Details
- 500ksps Throughput Rate
- ±1.75LSB INL (Max)
- Guaranteed 18-Bit No Missing Codes
- Low Power: 6.8mW at 500ksps, 6.8μW at 500sps
- 102dB SNR (Typ) at fIN = 2kHz
- –124dB THD (Typ) at fIN = 2kHz
- Digital Gain Compression (DGC)
- Guaranteed Operation to 125°C
- 2.5V Supply
- Fully Differential Input Range ±VREF
- VREF Input Range from 2.5V to 5.1V
- 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-Lead MSOP and 4mm × 3mm DFN Packages
The LTC2377-18 is a low noise, low power, high speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2377-18 has a ±VREF fully differential input range with VREF ranging from 2.5V to 5.1V. The LTC2377-18 consumes only 6.8mW and achieves ±1.75LSB INL maximum, no missing codes at 18 bits with 102dB SNR.
The LTC2377-18 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 500ksps throughput with no cycle latency makes the LTC2377-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2377-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.
The LTC2377-18 features a unique digital gain compression (DGC) function, which eliminates the driver amplifier’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.
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 2
Video 1
Product Selector Card 5
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 |
|---|---|---|---|
| LTC2377CDE-18#PBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC2377CDE-18#TRPBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC2377CMS-18#PBF | 16-Lead MSOP | ||
| LTC2377CMS-18#TRPBF | 16-Lead MSOP | ||
| LTC2377HMS-18#PBF | 16-Lead MSOP | ||
| LTC2377HMS-18#TRPBF | 16-Lead MSOP | ||
| LTC2377IDE-18#PBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC2377IDE-18#TRPBF | 16-Lead DFN (4mm x 3mm w/ EP) | ||
| LTC2377IMS-18#PBF | 16-Lead MSOP | ||
| LTC2377IMS-18#TRPBF | 16-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3) |
||
| LTC2377CMS-18#PBF | PRODUCTION | |
| LTC2377CMS-18#TRPBF | PRODUCTION | |
| LTC2377HMS-18#PBF | PRODUCTION | |
| LTC2377HMS-18#TRPBF | PRODUCTION | |
| LTC2377IMS-18#PBF | PRODUCTION | |
| LTC2377IMS-18#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0132 Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC2377CMS-18#PBF | PRODUCTION | |
| LTC2377CMS-18#TRPBF | PRODUCTION | |
| LTC2377HMS-18#PBF | PRODUCTION | |
| LTC2377HMS-18#TRPBF | PRODUCTION | |
| LTC2377IMS-18#PBF | PRODUCTION | |
| LTC2377IMS-18#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 3
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 |
|---|---|---|
| Fully Differential Amplifiers 1 | ||
| LTC6362 | LAST TIME BUY | Precision, Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver |
| I²C Isolators 1 | ||
| LTM2883 | PRODUCTION | SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power |
| Series Voltage References 1 | ||
| LTC6655 | PRODUCTION | 0.25ppm Noise, Low Drift Precision References |
| Single-Ended to Differential Amplifiers 1 | ||
| LT6350 | RECOMMENDED FOR NEW DESIGNS | Low Noise Single-Ended to Differential Converter/ADC Driver |
Tools & Simulations
Linduino 4
IBIS Model 1
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
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