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Reliability Data
Product Selector Card
- LTC2369 - 18-Bit, 1.6Msps Pseudo-Differential SAR ADC
- Precision Signal Chain Products Selector Guide
- SAR ADC Drivers
- SAR ADC Input Types
Software and Simulation
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Linduino
Features
- 1Msps Throughput Rate
- ±2.5LSB INL (Max)
- Guaranteed 18-Bit No Missing Codes
- Low Power: 13.5mW at 1Msps, 13.5μW at 1ksps
- 97dB SNR (Typ) at fIN = 2kHz
- –120dB THD (Typ) at fIN = 2kHz
- Guaranteed Operation to 125°C
- 2.5V Supply
- Pseudo-Differential Unipolar Input Range: 0V to 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
Typical Application
Description
The LTC®2368-18 is a low noise, low power, high speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2368-18 has a 0V to VREF pseudo-differential unipolar input range with VREF ranging from 2.5V to 5.1V. The LTC2368-18 consumes only 13.5mW and achieves ±2.5LSB INL maximum, no missing codes at 18 bits with 97dB SNR.
The LTC2368-18 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 1Msps throughput with no cycle latency makes the LTC2368-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2368-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.
4x3 DFN-16,MS-16
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC2368CDE-16#PBF | DFN | 16 | C | $18.50 | $12.95 |
| LTC2368CDE-16#TRPBF | DFN | 16 | C | $18.56 | $13.01 |
| LTC2368CDE-18#PBF | DFN | 16 | C | $35.00 | $24.50 |
| LTC2368CDE-18#TRPBF | DFN | 16 | C | $24.56 | |
| LTC2368CMS-16#PBF | MSOP | 16 | C | $18.50 | $12.95 |
| LTC2368CMS-16#TRPBF | MSOP | 16 | C | $18.56 | $13.01 |
| LTC2368CMS-18#PBF | MSOP | 16 | C | $35.00 | $24.50 |
| LTC2368CMS-18#TRPBF | MSOP | 16 | C | $24.56 | |
| LTC2368HMS-16#PBF | MSOP | 16 | H | $24.47 | $17.13 |
| LTC2368HMS-16#TRPBF | MSOP | 16 | H | $24.53 | $17.19 |
| LTC2368HMS-18#PBF | MSOP | 16 | H | $46.29 | $32.40 |
| LTC2368HMS-18#TRPBF | MSOP | 16 | H | $32.46 | |
| LTC2368IDE-16#PBF | DFN | 16 | I | $21.28 | $14.89 |
| LTC2368IDE-16#TRPBF | DFN | 16 | I | $21.34 | $14.95 |
| LTC2368IDE-18#PBF | DFN | 16 | I | $40.25 | $28.18 |
| LTC2368IDE-18#TRPBF | DFN | 16 | I | $28.24 | |
| LTC2368IMS-16#PBF | MSOP | 16 | I | $21.28 | $14.89 |
| LTC2368IMS-16#TRPBF | MSOP | 16 | I | $21.34 | $14.95 |
| LTC2368IMS-18#PBF | MSOP | 16 | I | $40.25 | $28.18 |
| LTC2368IMS-18#TRPBF | MSOP | 16 | I | $28.24 | |
| LTC2368IMS-24#TRPBF | MSOP | 16 | I | $33.99 | |
| LTC2368IMS-24#PBF | MSOP | 16 | I | $48.47 | $33.93 |
| LTC2368IDE-24#PBF | DFN | 16 | I | $48.47 | $33.93 |
| LTC2368CDE-24#PBF | DFN | 16 | C | $42.14 | $29.50 |
| LTC2368CDE-24#TRPBF | DFN | 16 | C | $29.56 | |
| LTC2368IDE-24#TRPBF | DFN | 16 | I | $33.99 | |
| LTC2368CMS-24#TRPBF | MSOP | 16 | C | $29.56 | |
| LTC2368CMS-24#PBF | MSOP | 16 | C | $42.14 | $29.50 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1796A-F | LTC6360 driving LTC2368-18 Demo Board | 18-bit, 1Msps SAR ADC (req. DC590 or DC718) | $150.00 | |
| DC1813A-F | LTC2368-18 with LTC6655-5/LT6202 Demo Board |18-Bit, 1Msps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. Req DC718 or DC590 | $150.00 |
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC2026C | Linduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform | $75.00 | |
| DC590B | Isolated USB Serial Controller for Linear Technology QuikEval-Compatible Demo Boards | $50.00 | |
| DC718C | USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) | $300.00 |