Overview
The LTC1861IMS#PBF is a 12-bit, 250ksps (kilo-samples per second), 2-channel analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC1860/LTC1861 family and is known for its high accuracy and low power consumption. It is particularly suited for applications requiring precise analog-to-digital conversion in a compact and efficient package.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 Bits | - |
| No Missing Codes | Yes | - |
| Sampling Rate | 250 ksps | - |
| Integral Nonlinearity (INL) | ±1 LSB | - |
| Transition Noise | 0.07 LSBRMS | - |
| Gain Error | ±20 mV | - |
| Offset Error | Refer to datasheet for specific values | - |
| Operating Temperature Range | -40°C to 85°C | - |
| Package Type | 10-MSOP | - |
Key Features
- High Accuracy: The LTC1861IMS#PBF offers 12-bit resolution with no missing codes, ensuring high precision in analog-to-digital conversion.
- Low Power Consumption: Designed for low power applications, this ADC is suitable for battery-powered devices and other power-sensitive systems.
- Compact Package: Available in a 10-MSOP package, this device is ideal for space-constrained designs.
- Flexible Reference Voltage: The reference voltage for the ADC can range from 1V to VCC, providing flexibility in system design.
- Low Noise and Ripple: The device requires bypassing of VCC and VREF pins to ensure minimal noise and ripple, enhancing the overall performance.
Applications
- Industrial Automation: Suitable for precision measurement and control systems in industrial environments.
- Medical Devices: Used in medical equipment where high accuracy and low power consumption are critical.
- Automotive Systems: Applicable in automotive sensors and control systems requiring precise analog-to-digital conversion.
- Consumer Electronics: Ideal for battery-powered consumer devices that require accurate and efficient analog-to-digital conversion.
Q & A
- What is the resolution of the LTC1861IMS#PBF ADC?
The resolution of the LTC1861IMS#PBF is 12 bits with no missing codes.
- What is the sampling rate of the LTC1861IMS#PBF?
The sampling rate of the LTC1861IMS#PBF is 250 ksps.
- What is the operating temperature range of the LTC1861IMS#PBF?
The operating temperature range is -40°C to 85°C.
- What package type is the LTC1861IMS#PBF available in?
The LTC1861IMS#PBF is available in a 10-MSOP package.
- How should the VCC and VREF pins be bypassed for optimal performance?
The VCC and VREF pins should be bypassed directly to the analog ground plane with a minimum of 1µF tantalum capacitor, keeping the leads as short as possible.
- What are the considerations for grounding the LTC1861IMS#PBF?
The device should be used with an analog ground plane and single point grounding techniques. The ground pins should be tied directly to the analog ground plane with minimum lead length).
- Can the LTC1861IMS#PBF operate with different reference voltages?
Yes, the reference voltage for the LTC1861IMS#PBF can range from 1V to VCC).
- What are the implications of large source resistances on the analog inputs?
Larger source resistances can cause transients due to capacitive switching input current spikes. Ensuring these transients settle before conversion is crucial).
- What are some recommended op-amps for driving the analog inputs?
High-speed op-amps such as the LT®1211, LT1469, LT1807, LT1810, LT1630, LT1226, or LT1215 are recommended).
- Where can I find more detailed information on the LTC1861IMS#PBF?
More detailed information can be found in the datasheet available on the Analog Devices website or through distributors like Mouser and Digi-Key).
