LT1009CDR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: High precision, low drift, low noise
• Package: SOIC-8
• Essence: The LT1009CDR is a voltage reference IC used to provide a stable and accurate voltage reference for various electronic circuits.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Output Voltage: 2.5V
• Initial Accuracy: ±0.4%
• Temperature Coefficient: 10ppm/°C
• Operating Temperature Range: -40°C to 85°C
• Input Voltage Range: 4V to 40V
• Quiescent Current: 1.5mA

Detailed Pin Configuration

The LT1009CDR has 8 pins arranged as follows:

```

---

| | --| V+ GND |-- Pin 1: Ground --| OUT NC |-- Pin 2: No Connection --| TRIM NC |-- Pin 3: No Connection --| ADJ NC |-- Pin 4: No Connection --| NC NC |-- Pin 5: No Connection --| NC NC |-- Pin 6: No Connection --| NC NC |-- Pin 7: No Connection --| NC V+ |-- Pin 8: Positive Supply Voltage |___________| ```

Functional Features

• Provides a stable and accurate 2.5V reference voltage
• Low temperature coefficient ensures minimal drift over a wide temperature range
• Low output noise for precise measurements
• Adjustable output voltage using the TRIM pin

Advantages and Disadvantages

Advantages: - High precision and accuracy - Low temperature coefficient - Low output noise - Adjustable output voltage

Disadvantages: - Limited output voltage options (fixed at 2.5V) - Requires external components for certain applications

Working Principles

The LT1009CDR utilizes a bandgap reference circuit to generate a stable and accurate voltage reference. It compensates for temperature variations by using a combination of bipolar and MOS transistors. The TRIM pin allows fine adjustment of the output voltage.

Detailed Application Field Plans

The LT1009CDR is commonly used in various applications that require a precise and stable voltage reference. Some typical application fields include:

1. Precision analog-to-digital converters (ADCs)
2. Digital-to-analog converters (DACs)
3. Voltage regulators
4. Temperature sensors
5. Battery management systems

Detailed and Complete Alternative Models

1. LM4040CIZ-2.5: 2.5V Precision Shunt Voltage Reference
2. REF102CU: 2.5V Precision Voltage Reference
3. MAX6190AESA: 2.5V Micropower Voltage Reference

These alternative models offer similar functionality and can be considered as alternatives to the LT1009CDR.

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