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MAX840ESA from MAX,MAXIM - Dallas Semiconductor

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MAX840ESA

Manufacturer: MAX, MAXIM

Low-Noise / Regulated / -2V GaAsFET Bias

Partnumber Manufacturer Quantity Availability
MAX840ESA MAX, MAXIM 27818 In Stock

Description and Introduction

Low-Noise / Regulated / -2V GaAsFET Bias The MAX840ESA is a low-power, precision voltage reference manufactured by Maxim Integrated. Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** 4.096V  
- **Initial Accuracy:** ±0.2% (max)  
- **Temperature Coefficient (Tempco):** 25ppm/°C (max)  
- **Operating Current:** 60µA (typ)  
- **Supply Voltage Range:** 4.5V to 40V  
- **Output Current:** ±2mA (source/sink)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (ESA)  

### **Descriptions:**
- The MAX840ESA is a low-power, high-precision voltage reference designed for applications requiring stable and accurate voltage references.  
- It features low drift and excellent line and load regulation.  
- Suitable for battery-powered and industrial applications.  

### **Features:**
- **Low Power Consumption:** 60µA typical supply current.  
- **High Accuracy:** ±0.2% initial voltage accuracy.  
- **Low Temperature Drift:** 25ppm/°C maximum.  
- **Wide Supply Range:** Operates from 4.5V to 40V.  
- **Stable Output:** Low noise and excellent line/load regulation.  
- **Small Package:** 8-pin SOIC for space-constrained designs.  

The MAX840ESA is commonly used in data acquisition systems, portable instrumentation, and precision power supplies.

Application Scenarios & Design Considerations

Low-Noise / Regulated / -2V GaAsFET Bias

Alternative Part Number

  • LT1054CS8 --: Switched-capacitor voltage converter/inverter in an 8-pin SOIC package, functionally similar to the MAX840 charge-pump regulator and widely available.
  • ICL7660CSA --: Classic CMOS charge-pump voltage inverter in SOIC-8, a common drop-in style alternative for low-current negative supply generation.
  • TC7660EOA --: Charge-pump voltage converter in SOIC-8 with similar inversion/doubling function, suitable as a lower-cost second-source option.
  • ICL7660ACPA --: Classic CMOS charge-pump voltage converter offering inverting and doubling modes; a well-known functional substitute when the exact regulation feature is not critical.

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