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MAX121CAP from MAX,MAXIM - Dallas Semiconductor

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MAX121CAP

Manufacturer: MAX, MAXIM

308Ksps ADC with DSP Interface and 78dB SINAD

Partnumber Manufacturer Quantity Availability
MAX121CAP MAX, MAXIM 129 In Stock

Description and Introduction

308Ksps ADC with DSP Interface and 78dB SINAD The MAX121CAP is a high-speed, 12-bit analog-to-digital converter (ADC) manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on available factual data:

### **Specifications:**
- **Resolution:** 12-bit  
- **Sampling Rate:** 1 MSPS (Mega Samples Per Second)  
- **Input Voltage Range:** ±5V (bipolar) or 0V to +10V (unipolar)  
- **Power Supply:** ±5V (dual supply)  
- **Power Consumption:** 175mW (typical)  
- **DNL (Differential Non-Linearity):** ±0.5 LSB (max)  
- **INL (Integral Non-Linearity):** ±1 LSB (max)  
- **Signal-to-Noise Ratio (SNR):** 70dB (typical)  
- **Total Harmonic Distortion (THD):** -80dB (typical)  
- **Operating Temperature Range:** 0°C to +70°C (commercial grade)  
- **Package:** 20-pin PDIP (Plastic Dual In-line Package)  

### **Descriptions:**
- The MAX121CAP is a successive approximation register (SAR) ADC with a built-in track-and-hold circuit.  
- It supports both unipolar and bipolar input ranges, making it versatile for various signal acquisition applications.  
- Designed for high-speed, precision data conversion in industrial, medical, and instrumentation systems.  

### **Features:**
- **High-Speed Conversion:** 1 MSPS throughput.  
- **Low Power Consumption:** 175mW typical.  
- **Wide Input Range:** Supports ±5V (bipolar) or 0V to +10V (unipolar).  
- **Internal Reference:** Includes a precision 4.096V reference.  
- **Parallel Interface:** Easy interfacing with microprocessors and DSPs.  
- **No Missing Codes Guaranteed:** Ensures 12-bit accuracy.  
- **Single-Ended or Differential Input:** Flexible input configuration.  

This information is based on the manufacturer's datasheet and technical documentation. For exact performance under specific conditions, refer to the official datasheet.

Application Scenarios & Design Considerations

308Ksps ADC with DSP Interface and 78dB SINAD

Alternative Part Number

  • AD7870JP --: Pin-compatible 12-bit ADC with similar sampling architecture and parallel interface, widely used as a direct substitute in MAX121 sockets.
  • ADS7805P --: 12-bit successive-approximation ADC in a 28-pin DIP with comparable speed and parallel output, suitable as a functional replacement.
  • LTC1278CN --: 12-bit sampling ADC with similar resolution and DIP package, offering comparable performance for the same application class.
  • LTC1272CCN --: 12-bit successive-approximation ADC with comparable speed and parallel/serial output, suitable replacement in many MAX121 applications.
  • ADS7804PB --: 12-bit sampling ADC with similar architecture and timing, offering equivalent performance for signal acquisition designs.

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