LTC2376-20

PRODUCTION

20-Bit, 250ksps, Low Power SAR ADC with 0.5ppm INL

Part Models: 8
1ku List Price: Starting From $21.45

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Overview

250ksps Throughput Rate
±0.5ppm INL (Typ)
Guaranteed 20-Bit No Missing Codes
Low Power: 5.3mW at 250ksps, 5.3μW at 250sps
104dB SNR (Typ) at f_IN = 2kHz
–125dB THD (Typ) at f_IN = 2kHz
Digital Gain Compression (DGC)
Guaranteed Operation to 85°C
2.5V Supply
Fully Differential Input Range ±V_REF
V_REF 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 LTC2376-20 is a low noise, low power, high speed 20-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2376-20 has a ±V_REF fully differential input range with V_REF ranging from 2.5V to 5.1V. The LTC2376-20 consumes only 5.3mW and achieves ±2ppm INL maximum, no missing codes at 20 bits with 104dB SNR.

The LTC2376-20 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 250ksps throughput with no cycle latency makes the LTC2376-20 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2376-20 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.

The LTC2376-20 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 • V_REF and full-scale code from V_REF to 0.9 • V_REF. 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

Part Models: 8
1ku List Price: Starting From $21.45

Documentation

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
LTC2376CDE-20#PBF	16-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2376CDE-20#TRPBF	16-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2376CMS-20#PBF	16-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2376CMS-20#TRPBF	16-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2376IDE-20#PBF	16-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2376IDE-20#TRPBF	16-Lead DFN (4mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2376IMS-20#PBF	16-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC2376IMS-20#TRPBF	16-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 4, 2020 - 20_0132 Laser Top Mark for 16-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0132_Form Material_Report
LTC2376CMS-20#PBF	PRODUCTION
LTC2376CMS-20#TRPBF	PRODUCTION
LTC2376IMS-20#PBF	PRODUCTION
LTC2376IMS-20#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Evaluation Software 1

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Differential Amplifiers 1
LTC6362	LAST TIME BUY	Precision, Low Power Rail-to-Rail Input/Output Differential Op Amp/SAR ADC Driver
Interface Transceivers & Isolators 2
LTM2883	PRODUCTION	SPI/Digital or I²C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
LTM2893	PRODUCTION	100MHz Isolated ADC Serial Interface
Matched Resistors & Transistors 1
LT5400	RECOMMENDED FOR NEW DESIGNS	Quad Matched Resistor Network

Operational Amplifiers (Op Amps) 1
LT6203	PRODUCTION	Dual 100MHz, Rail-to-Rail Input and Output, Ultralow 1.9nV√Hz Noise, Low Power Op Amps
Voltage References 1
LTC6655	PRODUCTION	0.25ppm Noise, Low Drift Precision References

Tools & Simulations

Linduino 4

IBIS Model 1

LTC2380 IBIS Model

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.

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Evaluation Kits

LTC2376-20 Demo Board | 20-Bit, 250ksps, SAR ADC with 104dB SNR. Requires DC2026

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Product Details

The LTC2378-20, LTC2377-20 and LTC2376-20 are 20‑bit, low power, low noise SAR ADCs with serial outputs that operate from a single 2.5V supply. The demo manual refers to the LTC2378-20 but applies to all parts in the family, the only difference being the maximum sample rate. The LTC2378-20 supports a ±5V fully differential input range with a 104dB SNR, consumes only 21mW and achieves ±2ppm INL max with no missing codes at 20 bits. The DC1925A demonstrates the DC and AC performance of the LTC2378-20 in conjunction with the DC590 QuikEval^™ and DC890 PScope^™ data collection boards. Use the DC590 to demonstrate DC performance such as peak-to-peak noise and DC linearity.