LTC1667IG#PBF

Product Overview

Category: Integrated Circuits (ICs)

Use: Digital-to-Analog Converter (DAC)

Characteristics: - Resolution: 16-bit - Number of Channels: 1 - Interface Type: Serial (SPI) - Supply Voltage: 2.7V to 5.5V - Package Type: 28-Lead SSOP - Operating Temperature Range: -40°C to +85°C

Essence: The LTC1667IG#PBF is a high-performance 16-bit DAC designed for various applications that require precise analog voltage generation.

Packaging/Quantity: The LTC1667IG#PBF is available in a 28-Lead SSOP package. It is typically sold in reels of 250 units.

Specifications

• Resolution: 16 bits
• Monotonicity: Guaranteed
• Integral Nonlinearity (INL): ±1 LSB (Max)
• Differential Nonlinearity (DNL): ±0.5 LSB (Max)
• Output Voltage Range: 0V to VREF
• Reference Input Voltage Range: 2.5V to 5.5V
• Output Current: ±10mA (Max)
• Power Supply Rejection Ratio (PSRR): 90dB (Typ)
• Total Harmonic Distortion (THD): -80dB (Typ) at f = 1kHz
• Output Glitch Energy: 0.3nV-s (Typ)
• Power Consumption: 1.5mW (Typ)

Pin Configuration

The LTC1667IG#PBF has the following pin configuration:

```

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| | | LTC1667IG#PBF | |_______________________________________|

Pin 1: VDD Pin 2: VREF Pin 3: SDO Pin 4: SCK Pin 5: CS Pin 6: GND Pin 7: AGND Pin 8: OUT ... ```

Functional Features

• High-resolution 16-bit digital-to-analog conversion
• Serial interface (SPI) for easy integration with microcontrollers and other digital systems
• Wide supply voltage range allows for flexibility in various applications
• Low power consumption for energy-efficient designs
• Guaranteed monotonicity ensures accurate analog voltage generation
• Excellent integral and differential nonlinearity for precise output control
• Low total harmonic distortion and output glitch energy for high-quality analog signals

Advantages

• High resolution provides fine-grained control over the generated analog voltage
• Serial interface simplifies communication with digital systems
• Wide supply voltage range allows for compatibility with different power sources
• Low power consumption helps conserve energy in battery-powered applications
• Monotonicity guarantee ensures accurate and reliable analog voltage generation
• Excellent linearity and low distortion result in high-quality analog signals

Disadvantages

• Limited to a single channel, not suitable for multi-channel applications without additional circuitry
• Requires an external reference voltage source for proper operation

Working Principles

The LTC1667IG#PBF operates by converting digital input data into an analog voltage. It utilizes a 16-bit digital-to-analog conversion technique to achieve high-resolution output. The serial interface (SPI) allows for easy communication with microcontrollers or other digital systems.

The device requires a stable reference voltage (VREF) to determine the output voltage range. The digital input data is processed internally, and the corresponding analog voltage is generated at the OUT pin. The LTC1667IG#PBF ensures monotonicity, linearity, and low distortion to provide accurate and high-quality analog signals.

Application Field Plans

The LTC1667IG#PBF is suitable for a wide range of applications that require precise analog voltage generation. Some potential application fields include:

1. Audio Equipment: The high resolution and low distortion make it ideal for audio signal processing, such as digital audio mixing consoles and professional audio interfaces.
2. Industrial Automation: It can be used in industrial control systems to generate accurate analog control signals for motor speed control, valve positioning, and other automation tasks.
3. Test and Measurement Instruments: The LTC1667IG#PBF can be employed in various test and measurement equipment, such as data acquisition systems, waveform generators, and calibration devices.
4. Communication Systems: It finds utility in communication systems where precise analog voltage generation is required, such as base station equipment, wireless transceivers, and satellite communication systems.

Alternative Models

1. LTC1668IG#PBF: Similar to LTC1667IG#PBF but with dual-channel capability.
2. LTC1666IG#PBF: 14-bit resolution DAC with similar features and characteristics.
3. AD5667RBC