Overview
The LTC1564IG#PBF, produced by Analog Devices Inc., is a digitally controlled antialiasing filter and programmable gain amplifier. It is designed for various band-limiting applications, including antialiasing, reconstruction, and other filtering needs. This component eliminates the need for additional analog components or filter expertise, making it a versatile and user-friendly solution. The LTC1564 operates with a single or split supply voltage ranging from 2.7V to 10V and is packaged in a 16-pin surface mount SSOP.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Frequency Range | 10kHz to 150kHz | |
| Filter Order | 8th Order | |
| Supply Voltage | 2.7V to 10.5V | V |
| Supply Current | 15-17 mA (VS = ±1.35V, VIN = 0V) | mA |
| Gain Range | 1 to 16 in 1V/V steps | |
| Dynamic Range | 122dB (20 equivalent bits) at 20kHz fC, 118dB at 100kHz fC | dB |
| Attenuation | 100dB at 2.5 × fCUTOFF | dB |
| Package Type | 16-Lead Plastic SSOP |
Key Features
- Digitally controlled 8th-order lowpass filter with adjustable cutoff frequency from 10kHz to 150kHz in 10kHz steps.
- 4-bit digitally controlled programmable gain amplifier with gain settings from 1 to 16 in 1V/V steps.
- No external components required.
- Rail-to-rail input and output range.
- Low noise mute mode and low power shutdown mode.
- High dynamic range of up to 122dB.
- CMOS-level digital frequency and gain control inputs.
Applications
The LTC1564IG#PBF is suitable for a variety of applications, including:
- Antialiasing and reconstruction filtering in digital signal processing (DSP) systems.
- Band-limiting in audio and data acquisition systems.
- Signal conditioning and filtering in industrial and medical devices.
Q & A
- What is the operating voltage range of the LTC1564IG#PBF?
The LTC1564IG#PBF operates from 2.7V to 10.5V. - What is the frequency range of the filter?
The filter's cutoff frequency is adjustable from 10kHz to 150kHz in 10kHz steps. - How is the gain controlled?
The gain is controlled by a 4-bit digital input, allowing gain settings from 1 to 16 in 1V/V steps. - What is the dynamic range of the LTC1564IG#PBF?
The dynamic range is up to 122dB (20 equivalent bits) at 20kHz fC and 118dB at 100kHz fC. - What type of package does the LTC1564IG#PBF come in?
The component is packaged in a 16-Lead Plastic SSOP. - Does the LTC1564IG#PBF require external components?
No, the LTC1564IG#PBF does not require any external components. - What are the key applications of the LTC1564IG#PBF?
Key applications include antialiasing and reconstruction filtering in DSP systems, band-limiting in audio and data acquisition systems, and signal conditioning in industrial and medical devices. - How is the filter's cutoff frequency programmed?
The cutoff frequency is programmed through CMOS-level digital frequency control inputs. - What is the attenuation at 2.5 times the cutoff frequency?
The attenuation is approximately 100dB at 2.5 times the cutoff frequency. - Does the LTC1564IG#PBF have low power modes?
Yes, it has a low noise mute mode and a low power shutdown mode.
