14-Bit, 40Msps Low Power 3V ADCs The LTC2247IUH 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:** Differential
- **Input Voltage Range:** 2Vpp (peak-to-peak)
- **Power Supply:** Single 3.3V
- **Power Consumption:** 95mW (typical)
- **SNR (Signal-to-Noise Ratio):** 73.5dB (typical)
- **SFDR (Spurious-Free Dynamic Range):** 90dB (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 LTC2247IUH is a high-speed, low-power 14-bit ADC designed for precision signal acquisition.
- It features a differential pipeline architecture with a digital error correction circuit to ensure high accuracy.
- The device includes an internal reference and a high-speed parallel output interface.
- It is suitable for applications requiring high dynamic performance and low power consumption.
### **Features:**
- **Low Power:** 95mW at 25Msps
- **High Dynamic Performance:** 73.5dB SNR, 90dB SFDR
- **Wide Input Bandwidth:** 500MHz
- **Internal Reference:** No external reference required
- **Single 3.3V Supply Operation**
- **Parallel CMOS Outputs**
- **32-Lead QFN Package (5mm × 5mm)**
- **Pin-Compatible with 12-bit and 10-bit Versions (LTC2246, LTC2245)**
This ADC is commonly used in communications, medical imaging, and instrumentation applications where high-speed and high-resolution data conversion is required.
