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ICL7109MJL from INTERSIL

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ICL7109MJL

Manufacturer: INTERSIL

12 Bit A/D Converter With 3-State Binary Outputs

Partnumber Manufacturer Quantity Availability
ICL7109MJL INTERSIL 270 In Stock

Description and Introduction

12 Bit A/D Converter With 3-State Binary Outputs The ICL7109MJL is a high-performance, low-power, 12-bit analog-to-digital converter (ADC) manufactured by **Intersil** (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Resolution:** 12-bit  
- **Conversion Method:** Dual-slope integrating ADC  
- **Input Voltage Range:** ±2V (differential)  
- **Reference Voltage:** Internal or external (typically 2.8V)  
- **Conversion Time:** ~30ms (maximum)  
- **Supply Voltage:** ±5V (dual supply)  
- **Power Consumption:** Low power (typically 10mW)  
- **Operating Temperature Range:** 0°C to +70°C (commercial grade)  
- **Package:** 40-pin DIP (Dual In-line Package)  

### **Descriptions:**  
- The ICL7109MJL is a precision **12-bit ADC** with **auto-zero and polarity detection**, making it suitable for high-accuracy measurement applications.  
- It features a **dual-slope conversion technique**, ensuring high noise rejection and accuracy.  
- Includes an **on-chip oscillator**, eliminating the need for external clock components.  
- Designed for **low-power operation**, making it ideal for battery-powered instruments.  
- Provides **serial and parallel output interfaces** for flexible system integration.  

### **Features:**  
- **12-bit resolution** with **±1 LSB accuracy**  
- **True differential inputs** with high common-mode rejection  
- **Auto-zero cycle** for minimizing offset errors  
- **On-chip reference** (2.8V typical)  
- **Low noise and high linearity**  
- **Serial (SPI-compatible) and parallel data output**  
- **Internal or external clock option**  
- **Direct drive capability for LCD/LED displays**  

This information is based solely on the manufacturer's datasheet for the **ICL7109MJL by Intersil**. No additional guidance or suggestions are included.

Application Scenarios & Design Considerations

12 Bit A/D Converter With 3-State Binary Outputs

Alternative Part Number

  • AD571JD --: 10-bit successive-approximation ADC in a similar DIP package, functionally comparable to the ICL7109 for many data-acquisition uses.
  • ADC1005CCJ --: 10-bit CMOS ADC with a similar parallel interface and DIP footprint, suitable as a functional substitute.
  • TLC0820ACN --: 8-bit high-speed ADC in DIP form; acceptable when slightly lower resolution is tolerable and a widely available alternative is needed.
Partnumber Manufacturer Quantity Availability
ICL7109MJL MAXIM 11 In Stock

Description and Introduction

12 Bit A/D Converter With 3-State Binary Outputs The ICL7109MJL is a precision analog-to-digital converter (ADC) manufactured by Maxim Integrated (formerly Intersil). Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Resolution:** 12-bit (dual-slope integrating ADC)  
- **Input Type:** Differential  
- **Input Voltage Range:** ±4.096V (adjustable)  
- **Conversion Rate:** Up to 30 conversions per second  
- **Reference Voltage:** Internal or external (typically 2.048V)  
- **Supply Voltage:** ±5V (dual supply)  
- **Power Consumption:** Typically 10mW  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 40-pin DIP (Dual In-line Package)  

### **Descriptions:**  
- The ICL7109MJL is a high-precision, low-power, 12-bit ADC designed for applications requiring accurate analog-to-digital conversion.  
- It uses a dual-slope integration technique to minimize noise and provide high accuracy.  
- Suitable for digital panel meters, data acquisition systems, and industrial instrumentation.  

### **Features:**  
- **High Accuracy:** 12-bit resolution with low noise.  
- **Dual-Slope Conversion:** Ensures excellent noise rejection.  
- **Differential Input:** Allows measurement of both positive and negative voltages.  
- **On-Chip Reference:** Includes a stable internal voltage reference (2.048V).  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Serial/Parallel Output:** Supports both serial (SPI-compatible) and parallel data output modes.  
- **Auto-Zero and Polarity Detection:** Simplifies system calibration.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

12 Bit A/D Converter With 3-State Binary Outputs

Alternative Part Number

  • TC7109ACPL --: Pin-compatible CMOS 12-bit plus sign integrating ADC from the TelCom/Microchip line, functionally equivalent to the ICL7109 with similar conversion architecture and interface.
  • AD7550JN --: Monolithic 13-bit binary plus sign integrating ADC offering comparable resolution and parallel BCD output, suitable as a functional substitute in similar measurement applications.
  • ICL7135CPI --: 4.5-digit integrating ADC with multiplexed BCD output and similar integrating conversion principle, usable as an alternative when slightly different resolution and pinout are acceptable.

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