Features and Benefits
- 15Msps Throughput Rate
- No Pipeline Delay, No Cycle Latency
- 95.7dB SNR (Typ) at fIN = 1MHz
- 102dB SFDR (Typ) at fIN = 1MHz
- Nyquist Sampling Up to 7.5MHz Input
- Guaranteed 18-Bit, No Missing Codes
- ±3LSB INL (Max)
- 8.192VP-P Differential Inputs
- 5V and 2.5V Supplies
- Internal 20ppm/°C (Max) Reference
- Serial LVDS Interface
- 125mW Power Dissipation
- 32-Pin (5mm × 5mm) QFN Package
The LTC2387-18 is a low noise, high speed, 18-bit 15Msps successive approximation register (SAR) ADC ideally suited for a wide range of applications. The combination of excellent linearity and wide dynamic range makes the LTC2387-18 ideal for high speed imaging and instrumentation applications. No latency operation provides a unique solution for high speed control loop applications. The very low distortion at high input frequencies enables communications applications requiring wide dynamic range and significant signal bandwidth.
To support high speed operation while minimizing the number of data lines, the LTC2387-18 features a serial LVDS digital interface. The LVDS interface has one-lane and two-lane output modes, allowing the user to optimize the interface data rate for each application.
- High Speed Data Acquisition
- Control Loops
Markets and Technologies
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (2)
Demonstration circuit 2588A features the LTC2387 family driven by a pair of ADA4899-1 driver amplifiers. With up to 15Msps, these differential input, single channel, 18-/16- Bit, serial, high speed successive approximation register (SAR) ADCs are available in a 32-Pin QFN package. The LTC2387 family has an internal 20ppm/°C reference and a serial LVDS interface. The demo manual refers to the LTC2387 but applies to all members of the family, the only difference being the sample rate and the number of bits.
Demonstration circuit 2290A features the LTC2387 family. With up to 15Msps, these differential input, single channel, 18-/16-Bit, serial, high speed successive approximation register (SAR) ADCs are available in a 32-Pin QFN package. The LTC2387 family has an internal 20ppm/°C reference and a serial LVDS interface. The demo manual refers to the LTC2387 but applies to all members of the family, the only difference being the sample rate and the number of bits. The DC2290A demonstrates the AC performance of the LTC2387 in conjunction with the DC718 data collection board. Differential amplifier demo boards are available separately that provide amplification of low level differential signals if required. Alternatively, by connecting the DC2290A into a customer application the performance of the LTC2387 can be evaluated directly in that circuit.
Documentation & Resources
R549 Reliability Data3/23/2018
Step-by-Step Noise Analysis Guide for Your Signal Chain12/1/2021 Analog Dialogue
LTC2387 Drivers Part IV: How to Drive the LTC2387 Reference7/10/2017
High Linearity, Low Noise LTC2387-18 Drivers for Sinusoidal Signals1/10/2017
LTC2387 Drivers Part II: Drivers for Imaging12/8/2016
Increase Spectral Resolution for the LTC2387-18 Demo Board - Part 110/14/2016
Increase Spectral Resolution for the LTC2387-18 Demo Board - Part 210/14/2016
Single-Ended to Differential Driver Circuit for the LTC2387-18 SAR ADC9/26/2016
LTC2387 Drivers Part III: Trans-Impedance Amplifier/Driver9/8/2016
How to Drive the LTC2387 (Part 1): Signal Applications to 5MHz that Require Low Inter-Modulation Distortion5/13/2016
Software & Systems Requirements
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
To launch ready-to-run LTspice demonstration circuits for this part:
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Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
Models for the following parts are available in LTspice:
Precision ADC Driver Tool
The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.