LTC2368-18 - 18-Bit, 1Msps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR
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.
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
 | Packaging
 |
Order Information| Part Number | Package | Temp | Price(1-99) | Price (1k)* |
|---|
| LTC2368CDE-18#PBF | 4x3 DFN-16 | C | $35.00 | $24.50 |
| LTC2368CDE-18#TRPBF | 4x3 DFN-16 | C | | $24.56 |
| LTC2368CMS-18#PBF | MS-16 | C | $35.00 | $24.50 |
| LTC2368CMS-18#TRPBF | MS-16 | C | | $24.56 |
| LTC2368HMS-18#PBF | MS-16 | H | $46.29 | $32.40 |
| LTC2368HMS-18#TRPBF | MS-16 | H | | $32.46 |
| LTC2368IDE-18#PBF | 4x3 DFN-16 | I | $40.25 | $28.18 |
| LTC2368IDE-18#TRPBF | 4x3 DFN-16 | I | | $28.24 |
| LTC2368IMS-18#PBF | MS-16 | I | $40.25 | $28.18 |
| LTC2368IMS-18#TRPBF | MS-16 | I | | $28.24 |
Demo Boards
| Part Number | Description | Price |
|---|
| 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 |
|---|
| 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 |
DatasheetReliability DataProduct Selector CardSoftware and SimulationCAD SymbolLinduino | Related Products- LTC6655 - 0.25ppm Noise, Low Drift Precision References
- LTC2378-20 - 20-Bit, 1Msps, Low Power SAR ADC with 0.5ppm INL
- LTC2338-18 - 18-Bit, 1Msps, ±10.24V True Bipolar, Fully Differential Input ADC with 100dB SNR
- LTC2379-18 - 18-Bit, 1.6Msps, Low Power SAR ADC with 101dB SNR
- LTC2440 - 24-Bit High Speed Differential Delta Sigma ADC with Selectable Speed/Resolution
- LTC2389-18 - 18-Bit, 2.5Msps SAR ADC with Pin-Configurable Analog Input Range and 99.8dB SNR
- LTC2369-18 - 18-Bit, 1.6Msps, Pseudo- Differential Unipolar SAR ADC with 96.5dB SNR
- LTC2368-16 - 16-Bit, 1Msps, Pseudo- Differential Unipolar SAR ADC with 94.7dB SNR
- LTC2380-24 - 24-Bit, 1.5Msps/2Msps, Low Power SAR ADC with Integrated Digital Filter
- LTC2378-18 - 18-Bit, 1Msps, Low Power SAR ADC with 102dB SNR
|
