TLV2544QDRG4

Product Overview

Category: Integrated Circuits (ICs)

Use: TLV2544QDRG4 is a 12-bit analog-to-digital converter (ADC) that belongs to the TLV254x-Q1 family of ADCs. It is designed for precision measurement applications where high accuracy and low power consumption are required.

Characteristics: - Resolution: 12 bits - Sampling Rate: Up to 200 kilosamples per second (ksps) - Power Supply Voltage Range: 2.7V to 5.5V - Low Power Consumption: 0.6mW at 3V supply voltage - Operating Temperature Range: -40°C to +125°C - Package Type: SOIC (Small Outline Integrated Circuit) - Package Dimensions: 3.91mm x 8.65mm - Number of Pins: 16

Packaging/Quantity: TLV2544QDRG4 is available in tape and reel packaging, with 2500 units per reel.

Specifications

The TLV2544QDRG4 ADC has the following specifications:

• Resolution: 12 bits
• Input Voltage Range: 0V to Vref
• Reference Voltage Range: 2.5V to 5V
• Differential Nonlinearity (DNL): ±0.5 LSB (typical)
• Integral Nonlinearity (INL): ±1 LSB (typical)
• Signal-to-Noise Ratio (SNR): 72 dB (typical)
• Total Harmonic Distortion (THD): -80 dB (typical)
• Input Capacitance: 10 pF (typical)
• Conversion Time: 5 µs (typical)

Pin Configuration

The TLV2544QDRG4 has a 16-pin SOIC package with the following pin configuration:

Pin 1: Vref- Pin 2: Vref+ Pin 3: AGND Pin 4: REFOUT Pin 5: IN0+ Pin 6: IN0- Pin 7: IN1+ Pin 8: IN1- Pin 9: IN2+ Pin 10: IN2- Pin 11: IN3+ Pin 12: IN3- Pin 13: CS Pin 14: SCLK Pin 15: SDATA Pin 16: DGND

Functional Features

The TLV2544QDRG4 ADC offers the following functional features:

• High-resolution conversion: Provides 12-bit resolution for accurate measurement.
• Low power consumption: Consumes only 0.6mW of power at a 3V supply voltage, making it suitable for battery-powered applications.
• Wide operating temperature range: Can operate in extreme temperature conditions from -40°C to +125°C.
• Differential inputs: Supports differential input voltage measurements for improved noise rejection.
• SPI interface: Utilizes a Serial Peripheral Interface (SPI) for easy integration with microcontrollers and other digital devices.

Advantages and Disadvantages

Advantages: - High accuracy and resolution - Low power consumption - Wide operating temperature range - Differential input capability - Easy integration with microcontrollers

Disadvantages: - Limited sampling rate compared to some higher-end ADCs - Requires external reference voltage source

Working Principles

The TLV2544QDRG4 ADC operates based on the successive approximation register (SAR) architecture. It converts analog input voltages into digital representations using a binary search algorithm. The internal SAR circuitry compares the input voltage with a reference voltage and determines the digital output code.

Detailed Application Field Plans

The TLV2544QDRG4 ADC is suitable for various precision measurement applications, including but not limited to:

1. Industrial Automation: Used in process control systems, data acquisition, and monitoring equipment.
2. Medical Instruments: Enables accurate measurements in medical devices such as patient monitors and diagnostic equipment.
3. Test and Measurement Equipment: Provides high-resolution measurements in oscilloscopes, multimeters, and spectrum analyzers.
4. Automotive Electronics: Used in automotive sensors, fuel injection systems, and battery management systems.
5. Energy Management Systems: Enables precise energy monitoring and metering in smart grid systems.

Detailed and Complete Alternative Models

Some alternative models to TLV2544QDRG4 that offer similar functionality are:

1. ADS7822: 12-bit ADC with I2C interface
2. MCP3204: 12-bit ADC with SPI interface
3. MAX1241: 12-bit ADC with differential inputs
4. LTC1867: 12-bit ADC with low power consumption
5. AD7091