Overview
The LTC1858IG#TRPBF is a high-performance, 8-channel, 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This SoftSpan ADC is part of the LTC1857/LTC1858/LTC1859 family, known for its low power consumption and versatile input 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 | 14-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) | ±1.5LSB |
| Fault Protection | ±25V |
| Package | 28-Lead SSOP |
| Operating Temperature | -40°C to 85°C (Industrial Grade) |
Key Features
- Software-programmable input ranges: 0V to 5V, 0V to 10V, ±5V, or ±10V
- Single-ended or differential input configurations
- Fault protection up to ±25V on all channels
- Low power dissipation: 40mW (Typical)
- Two user-selectable power shutdown modes: Nap and Sleep
- SPI/MICROWIRE compatible serial I/O
- Internal synchronized clock with 5µs maximum conversion time
- Onboard high-performance sample-and-hold and precision reference
Applications
The LTC1858IG#TRPBF is suitable for a variety of applications requiring high-precision analog-to-digital conversion. These include:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Data acquisition systems
Q & A
- What is the resolution of the LTC1858IG#TRPBF ADC?
The LTC1858IG#TRPBF has a resolution of 14 bits.
- What are the software-programmable input ranges for the LTC1858IG#TRPBF?
The input ranges can be programmed for 0V to 5V, 0V to 10V, ±5V, or ±10V.
- What is the sampling rate of the LTC1858IG#TRPBF?
The sampling rate is 100ksps.
- How much power does the LTC1858IG#TRPBF typically consume?
The device typically consumes 40mW of power.
- What kind of fault protection does the LTC1858IG#TRPBF offer?
All channels are fault protected up to ±25V.
- What are the power shutdown modes available on the LTC1858IG#TRPBF?
The device features two user-selectable power shutdown modes: Nap and Sleep.
- What type of serial I/O does the LTC1858IG#TRPBF support?
The device supports SPI/MICROWIRE compatible serial I/O.
- What is the maximum conversion time for the LTC1858IG#TRPBF?
The internal clock is trimmed for a maximum conversion time of 5µs.
- Does the LTC1858IG#TRPBF have onboard sample-and-hold and precision reference?
Yes, it features an onboard high-performance sample-and-hold and precision reference.
- What is the package type for the LTC1858IG#TRPBF?
The device is packaged in a 28-Lead SSOP.
