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ICL7137CPL from INTERSIL

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ICL7137CPL

Manufacturer: INTERSIL

Low Power, 3 Digit A/D Converter

Partnumber Manufacturer Quantity Availability
ICL7137CPL INTERSIL 3 In Stock

Description and Introduction

Low Power, 3 Digit A/D Converter The ICL7137CPL is a 3½ digit analog-to-digital converter (ADC) manufactured by **INTERSIL** (now part of Renesas Electronics). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Resolution:** 3½ digits (2000 counts)  
- **Input Voltage Range:** ±200mV or ±2V (user-selectable)  
- **Conversion Rate:** ~3 readings per second  
- **Supply Voltage:** Typically ±5V (dual supply)  
- **Power Consumption:** Low power (suitable for battery-operated devices)  
- **Reference Voltage:** Requires an external reference (typically 1V for full-scale)  
- **Output:** Drives 7-segment LED displays directly (with multiplexed outputs)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 40-pin PDIP (Plastic Dual In-line Package)  

### **Descriptions:**  
- The ICL7137CPL is a **precision ADC** designed for **digital panel meters** and **measurement instruments**.  
- It includes **auto-zeroing** and **auto-polarity** functions for accurate readings.  
- Features **low noise** and **high input impedance**, making it suitable for low-level signal measurements.  

### **Features:**  
- **Direct LED Display Drive** (7-segment multiplexed outputs)  
- **Auto-Zero Cycle** for improved accuracy  
- **True Differential Input** (rejects common-mode noise)  
- **Overrange and Underrange Indication**  
- **Low Power Consumption** (ideal for portable instruments)  
- **No External Active Components Required** for basic operation  

This IC is commonly used in **digital multimeters, panel meters, and industrial measurement systems**.  

*(Note: INTERSIL was acquired by Renesas Electronics in 2017.)*

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