12-Bit, 1.25Msps, 55mW Sampling A/D Converter The LTC1415IG#TR is a high-performance, 14-bit analog-to-digital converter (ADC) manufactured by Linear Technology (now part of Analog Devices). Here are its key specifications, descriptions, and features:
### **Specifications:**
- **Resolution:** 14-bit
- **Sampling Rate:** 1.25 MSPS (Million Samples Per Second)
- **Input Voltage Range:** ±2.5V (bipolar) or 0V to 5V (unipolar)
- **DNL (Differential Nonlinearity):** ±0.5 LSB (typical)
- **INL (Integral Nonlinearity):** ±1 LSB (typical)
- **SNR (Signal-to-Noise Ratio):** 82 dB (typical)
- **THD (Total Harmonic Distortion):** -90 dB (typical)
- **Power Supply:** Single +5V
- **Power Consumption:** 95 mW (typical)
- **Operating Temperature Range:** -40°C to +85°C
- **Package:** 28-Lead SSOP
### **Descriptions:**
- The LTC1415IG#TR is a high-speed, low-power 14-bit ADC designed for precision data acquisition applications.
- It features a high-speed successive approximation register (SAR) architecture with internal track-and-hold.
- The device supports both unipolar (0V to 5V) and bipolar (±2.5V) input ranges, making it versatile for various signal conditioning needs.
- It includes a high-impedance input buffer to minimize signal distortion.
### **Features:**
- **High-Speed Conversion:** 1.25 MSPS throughput
- **Low Power Consumption:** 95 mW typical
- **Flexible Input Range:** Selectable unipolar or bipolar operation
- **Internal Reference:** On-chip 2.5V reference with low drift
- **Parallel Interface:** Easy interfacing with microprocessors and DSPs
- **No Pipeline Delays:** Immediate data availability after conversion
- **28-Lead SSOP Package:** Compact and suitable for space-constrained applications
The LTC1415IG#TR is commonly used in industrial control systems, medical instrumentation, and high-speed data acquisition systems.
