Overview
The LTC1859CG#PBF is a high-performance, 8-channel, 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This SoftSpan ADC is part of the LTC1857/LTC1858/LTC1859 family, known for its low power consumption and versatile input range configurations. The device operates from a single 5V supply and can be software-programmed for various input spans, including 0V to 5V, 0V to 10V, ±5V, or ±10V. It features an onboard high-performance sample-and-hold and precision reference, minimizing the need for external components.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 8 |
| Resolution | 16-bit |
| Sampling Rate | 100ksps |
| Input Range | Software-programmable: 0V to 5V, 0V to 10V, ±5V, ±10V |
| Supply Voltage | 5V |
| Power Dissipation | 40mW (Typical) |
| Integral Non-Linearity (INL) | ±3LSB |
| Fault Protection | ±25V |
| Package Type | 28-Lead SSOP |
| Operating Temperature | -40°C to 85°C (Commercial Grade), -40°C to 125°C (Industrial Grade) |
| Serial Interface | SPI/MICROWIRE Compatible |
| Power Shutdown Modes | Nap and Sleep |
Key Features
- Software-programmable input ranges: 0V to 5V, 0V to 10V, ±5V, or ±10V
- Single-ended or differential input configurations
- Onboard high-performance sample-and-hold and precision reference
- Low power dissipation: 40mW (Typical)
- Two user-selectable power shutdown modes: Nap and Sleep
- Fault protection up to ±25V on all channels
- SPI/MICROWIRE compatible serial interface
- Internal synchronized clock with 5µs maximum conversion time
- Signal-to-Noise Ratio (SNR): 87dB (Typical)
Applications
The LTC1859CG#PBF is suitable for a variety of applications requiring high-precision analog-to-digital conversion, including industrial control systems, medical devices, data acquisition systems, and automotive electronics. Its low power consumption and flexible input range configurations make it an ideal choice for battery-powered devices and systems where power efficiency is critical.
Q & A
- What is the resolution of the LTC1859CG#PBF ADC?
The LTC1859CG#PBF has a resolution of 16 bits. - What are the software-programmable input ranges for the LTC1859CG#PBF?
The input ranges can be programmed for 0V to 5V, 0V to 10V, ±5V, or ±10V. - What is the sampling rate of the LTC1859CG#PBF?
The sampling rate is 100ksps. - What is the power dissipation of the LTC1859CG#PBF?
The typical power dissipation is 40mW. - Does the LTC1859CG#PBF have fault protection?
Yes, all channels are fault protected up to ±25V. - What are the power shutdown modes available on the LTC1859CG#PBF?
The device has two user-selectable power shutdown modes: Nap and Sleep. - What type of serial interface does the LTC1859CG#PBF use?
The device uses an SPI/MICROWIRE compatible serial interface. - What is the maximum conversion time for the LTC1859CG#PBF?
The internal clock is trimmed for a maximum conversion time of 5µs. - What is the package type of the LTC1859CG#PBF?
The device is available in a 28-Lead SSOP package. - What are the operating temperature ranges for the LTC1859CG#PBF?
The commercial grade operates from -40°C to 85°C, and the industrial grade operates from -40°C to 125°C.
