Key facts
- Brand
- Texas Instruments
- Model
- UAF42
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-09
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Texas Instruments UAF42 Universal Active Filter Datasheet
The UAF42 is a universal active filter that can be configured for low‑pass, high‑pass, band‑pass, and band‑reject applications. It uses a classic state‑variable architecture with on‑chip 1000 pF capacitors trimmed to ±0.5 %.
The datasheet includes absolute maximum ratings, electrical characteristics, ordering and packaging information, and design equations for filter implementation. It also describes a DOS‑compatible design program that assists in calculating component values for various filter types.
Texas Instruments UAF42 specifications
| Frequency Range | 0 to 100 kHz |
|---|---|
| Frequency Accuracy | 1 % vs Temperature 0.01 %/°C |
| Maximum Q | 400 |
| Maximum Q·Frequency Product | 500 kHz |
| Q vs Temperature | 0.01 %/°C |
| Input Offset Voltage | ±5 mV |
| Resistor Accuracy | 0.5 %–1 % |
| Input Voltage Noise Density (10 Hz) | 25 nV/√Hz |
| Short‑Circuit Output Current | ±25 mA |
| Specified Operating Voltage | ±15 V |
| Operating Voltage Range | ±6 V to ±18 V |
| Supply Current | 6 mA–7 mA |
| Specified Temperature Range | –25 °C to +85 °C |
| Storage Temperature Range | –40 °C to +125 °C |
| Thermal Resistance (θJA) | 100 °C/W |
Source: Texas Instruments UAF42 Universal Active Filter Datasheet
All Texas Instruments UAF42 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the maximum Q value of the UAF42?
The maximum Q value is 400.
From: Texas Instruments UAF42 Universal Active Filter Datasheet
Which package types are available for the UAF42?
The UAF42 is available in a 14‑pin PDIP package and a 16‑pin SOIC surface‑mount package.
From: Texas Instruments UAF42 Universal Active Filter Datasheet
What filter types can the UAF42 be configured for?
It can be configured as low‑pass, high‑pass, band‑pass, or band‑reject filters.
From: Texas Instruments UAF42 Universal Active Filter Datasheet
What is the operating temperature range of the UAF42?
The specified operating temperature range is –25 °C to +85 °C.
From: Texas Instruments UAF42 Universal Active Filter Datasheet