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LTC1402CGN from LINEAR

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LTC1402CGN

Manufacturer: LINEAR, LT

Serial 12-Bit/ 2.2Msps Sampling ADC with Shutdown

Partnumber Manufacturer Quantity Availability
LTC1402CGN LINEAR, LT 136 In Stock

Description and Introduction

Serial 12-Bit/ 2.2Msps Sampling ADC with Shutdown The LTC1402CGN is a high-performance, dual-channel, 14-bit analog-to-digital converter (ADC) manufactured by Linear Technology (now part of Analog Devices).  

### **Key Specifications:**  
- **Resolution:** 14-bit  
- **Channels:** 2 (Dual)  
- **Sampling Rate:** 3Msps (Mega samples per second) per channel  
- **Input Type:** Differential  
- **Input Voltage Range:** ±2.5V (adjustable)  
- **Power Supply:** Single +5V or dual ±5V  
- **Power Consumption:** 170mW (typical)  
- **DNL (Differential Non-Linearity):** ±0.5 LSB (max)  
- **INL (Integral Non-Linearity):** ±1.5 LSB (max)  
- **SNR (Signal-to-Noise Ratio):** 80dB (typical)  
- **THD (Total Harmonic Distortion):** -90dB (typical)  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package:** 28-Lead SSOP  

### **Descriptions and Features:**  
- **Simultaneous Sampling:** Both channels sample at the same time, ideal for phase-sensitive applications.  
- **Low Noise and Distortion:** High SNR and THD ensure accurate signal acquisition.  
- **Flexible Input Range:** Supports ±2.5V differential inputs, configurable for different ranges.  
- **Internal Reference:** Includes a 2.5V reference, but can also use an external reference.  
- **Serial Interface:** SPI-compatible serial output for easy interfacing with microcontrollers and DSPs.  
- **Power-Down Mode:** Reduces power consumption when not in use.  
- **Applications:** Communications, medical imaging, industrial instrumentation, and high-speed data acquisition.  

This ADC is designed for precision applications requiring high-speed, dual-channel sampling with excellent linearity and noise performance.

Application Scenarios & Design Considerations

Serial 12-Bit/ 2.2Msps Sampling ADC with Shutdown

Alternative Part Number

  • AD9224ARSZ --: 12-bit 5 MSPS ADC in SSOP, functionally similar to the LTC1402 and pin-compatible in many designs; Analog Devices is the parent of Linear Technology.
  • ADS7818PB --: 12-bit 5 MSPS sampling ADC with similar serial interface and speed, suitable as a drop-in functional replacement.
  • MAX1202BCAP --: 12-bit 5 MSPS ADC with comparable resolution and throughput, offering an alternative source for the same application.
  • ADS7805U --: 16-bit 200 kSPS successive-approximation ADC offering higher resolution than the LTC1402, suitable for precision measurement applications where the LTC1402 is used.
  • MAX195BCWG --: 16-bit 85 kSPS ADC with similar parallel interface and supply requirements, a viable alternative for lower-speed precision sampling applications.

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