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Software and Simulation
Features
- 5Msps Throughput Rate
- No Pipeline Delay, No Cycle Latency
- 95.7dB SNR (Typ) at fIN = 1MHz
- 101dB SFDR (Typ) at fIN = 1MHz
- Nyquist Sampling Up to 2.5MHz Input
- Guaranteed 18-Bit, No Missing Codes
- ±1.5LSB INL (Max)
- 8.192VP-P Differential Inputs
- 5V and 2.5V Supplies
- Internal 20ppm/°C (Max) Reference
- Serial LVDS Interface
- 78mW Power Dissipation
- 32-Pin (5mm × 5mm) QFN Package
Typical Application
Description
The LTC®2385-18 is a low noise, high speed, 18-bit 5Msps successive approximation register (SAR) ADC ideally suited for a wide range of applications. The combination of excellent linearity and wide dynamic range makes the LTC2385-18 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 LTC2385-18 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.
5x5 QFN-32
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC2385CUH-16#TRPBF | QFN | 32 | C | $28.56 | $20.01 |
| LTC2385IUH-18#TRPBF | QFN | 32 | I | $44.27 | $31.01 |
| LTC2385IUH-18#PBF | QFN | 32 | I | $44.21 | $30.95 |
| LTC2385CUH-16#PBF | QFN | 32 | C | $28.50 | $19.95 |
| LTC2385CUH-18#PBF | QFN | 32 | C | $38.50 | $26.95 |
| LTC2385IUH-16#TRPBF | QFN | 32 | I | $32.85 | $23.01 |
| LTC2385IUH-16#PBF | QFN | 32 | I | $32.79 | $22.95 |
| LTC2385CUH-18#TRPBF | QFN | 32 | C | $38.56 | $27.01 |
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 |
|---|---|---|---|
| DC2290A-E | LTC2385-18 Demo Board | 18-Bit, 5Msps SAR ADC (Requires DC718 & DC2402 or DC2403) | $200.00 |
Companion Boards
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC2402A | LT6237 ADC Driver Board | Driver for LTC2387 family, Input Frequencies up to 8kHz | $25.00 | |
| DC2403A | LT6200 ADC Driver Board | Driver for LTC2387 family, Input Frequencies up to 1MHz | $25.00 | |
| DC718C | USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) | $300.00 |