14-Bit, 65/40/25Msps Low Power 3V ADCs The LTC2246CUH is a high-performance, 14-bit analog-to-digital converter (ADC) manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Resolution:** 14-bit
- **Sampling Rate:** 25Msps (Mega samples per second)
- **Input Type:** Single-ended or differential
- **Input Voltage Range:** 2Vpp (peak-to-peak)
- **Power Supply:** Single 3.3V
- **Power Consumption:** 310mW (typical)
- **SNR (Signal-to-Noise Ratio):** 73.5dB (typical)
- **SFDR (Spurious-Free Dynamic Range):** 85dB (typical)
- **DNL (Differential Non-Linearity):** ±0.5 LSB (max)
- **INL (Integral Non-Linearity):** ±1.5 LSB (max)
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 32-Lead QFN (5mm × 5mm)
### **Descriptions:**
- The LTC2246CUH is a low-power, high-speed 14-bit ADC designed for applications requiring high dynamic performance.
- It features a high-speed parallel CMOS output interface.
- The device supports both single-ended and differential clock inputs for flexible system integration.
- It includes an internal reference and track-and-hold circuit for simplified design.
### **Features:**
- **High-Speed Performance:** 25Msps sampling rate with excellent linearity.
- **Low Power Consumption:** Optimized for power-sensitive applications.
- **Flexible Input Options:** Supports single-ended or differential inputs.
- **Internal Reference:** Eliminates the need for an external reference.
- **CMOS Outputs:** Easy interfacing with digital logic.
- **Wide Temperature Range:** Suitable for industrial and automotive applications.
- **Small Form Factor:** 32-lead QFN package for space-constrained designs.
This ADC is commonly used in communications, medical imaging, instrumentation, and other high-speed data acquisition systems.
