GH580 Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Adjustable Analog Highpass Filter

FEATURES
• 200 to 8 kHz adjustable corner frequency
• 12 dB/oct Butterworth filter
• low current drain (175 µA typical)
• two on chip 1 nF capacitors
• low noise and distortion
• 1.1 to 3.0 VDC operation
STANDARD PACKAGING
• 8 pin PLID^®
• Chip (66 x 61 mils)
Adjustable Analog
Highpass Filter
GH580 - DATA SHEET
DESCRIPTION
The GH580 is a single, second order (12 dB/Oct) continuous
high pass filter with an adjustable corner frequency (ƒ_C) from
200 to 8 kHz. Adjustment of ƒ_C is accomplished with a single
100 kΩ potentiometer connected from pin 3 to ground.
The bias circuitry is operated from an on chip voltage regulator
providing good supply rejection down to 1.1 V.
The two integrated 1nF capacitors have parasitic diodes
connected in parallel. This necessitates that the DC voltage
at pin 6 be greater that 400 mV and less than VB and that pins
8 and 7 be no greater than approximately 400 mV DC.
The GH580 has a dynamic range of approximately 80 dB.
8
A IN
6
CP+
CP- ⁷
+
1n
+
1n
V_B
4
V_REG
+
A
_
CONTROL
A OUT
5
1
GND
3
R_CNT
BLOCK DIAGRAM
Revision Date: January 2001
Document No. 520 - 50 - 05
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. [phone]
Web Site: www.gennum.com E-mail: [e-mail]