Analog Devices Inc. LTC1861IS8#PBF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $11.06 | $11.06 |
| 15+ | $10.71 | $160.65 |
| 25+ | $10.48 | $262.00 |
| 50+ | $9.89 | $494.50 |
| 100+ | $8.73 | $873.00 |
| N+ | $1.75 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Analog Devices Inc. |
| Product Series | |
| Packaging | Tube | |
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 250k |
| Number of Inputs | 2 |
| Input Type | Differential, Single Ended |
| Data Interface | SPI |
| Configuration | S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | SAR |
| Reference Type | External |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| Features | - |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Grade | - |
| Qualification | - |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SO |
| ROHS |
The LTC1861IS8#PBF is a 12-bit, 250 kSPS analog-to-digital converter from Analog Devices. It features 2 input channels with a sample-and-hold architecture and SPI serial interface. The device requires an external reference, allowing users to set the full-scale range precisely. Packaged in a compact 8-SOIC, it operates from -40°C to +85°C, making it suitable for battery-powered instruments, industrial sensors, and automotive applications.
- Low Power Consumption: Ideal for battery-operated devices, extending operational life.
- Dual Channel Input: Allows simultaneous monitoring of two signals without external MUX.
- External Reference: Provides flexibility to match the ADC range to the sensor output.
- Small Package: 8-SOIC footprint minimizes PCB area in space-constrained designs.
- Simple SPI Interface: Easy integration with most microcontrollers and digital signal processors.
Battery-Powered Instrumentation
The low power consumption of the LTC1861IS8#PBF makes it ideal for portable multimeters and handheld data loggers where battery life is critical.
Temperature Sensing
With 12-bit resolution and 2 channels, it can digitize outputs from thermocouples and RTDs with cold-junction compensation in industrial temperature controllers.
Pressure and Strain Measurement
The S/H architecture ensures accurate sampling of bridge sensor outputs in weigh scales and pressure transmitters, providing stable readings.
Audio Signal Processing
At 250 kSPS, it can oversample audio signals for digital effects processors and mixing consoles, improving dynamic range through decimation.
Environmental Monitoring
Two channels can simultaneously monitor humidity and temperature sensors in weather stations or HVAC control systems.
Automotive Sensor Interfaces
Its small 8-SOIC package and SPI interface make it suitable for engine control units monitoring throttle position and manifold pressure.
- Q: What is the resolution of the LTC1861IS8#PBF?
- A: It is a 12-bit analog-to-digital converter.
- Q: What is the sampling rate?
- A: It supports a sampling rate of 250 kSPS (250k samples per second).
- Q: How many channels does it have?
- A: It has 2 input channels.
- Q: What interface does it use?
- A: It uses an SPI serial interface.
- Q: What is the architecture?
- A: It uses a sample-and-hold (S/H) ADC architecture.
- Q: What package is it available in?
- A: It comes in an 8-SOIC package.
- Q: What is the resolution of the LTC1861IS8#PBF?
- A: It is a 12-bit analog-to-digital converter.
- Q: What is the sampling rate?
- A: It supports a sampling rate of 250 kSPS (250k samples per second).
- Q: How many channels does it have?
- A: It has 2 input channels.
- Q: What interface does it use?
- A: It uses an SPI serial interface.
- Q: What is the architecture?
- A: It uses a sample-and-hold (S/H) ADC architecture.
- Q: What package is it available in?
- A: It comes in an 8-SOIC package.

LTC1861IS8#PBF.pdf