 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Low Current Quad Inverting Amplifiers LX509 - DATA SHEET FEATURES * 210 A typical current drain * 4 inverting opamps; B with 6 dB greater drive current * minimum 46 dB open loop gain * ideal for - active filtering - dual channel hearing aids - mixers - microphone / telecoil preamps STANDARD PACKAGING * 10 pin PLID(R) * 10 pin SLT * Chip (61 x 55 mils) Au Bump DESCRIPTION The LX509 consists of 4 independent low noise, low current inverting operational amplifiers utilizing Gennum's low voltage bipolar JFET technology. Each amplifier has a minimum open loop gain of 46 dB with the closed loop gain set by the ratio of a feedback (RF) resistor to the source impedance (RS) . For a well controlled gain tolerance from amplifier to amplifier, it is recommended that the closed loop gain is at least 20 dB below the open loop gain. Three of the preamplifiers, A, C and D are capable of delivering typically 30 A of peak current drive while the fourth preamplifier B has 6 dB more current drive capability, allowing a 6 dB greater output into the same load impedance, or the same output level into one half the load impedance. CIN 6 -C COUT 7 8 VB 9 DIN DOUT 10 -D -B -A 5 BIN 4 BOUT 3 AIN 2 AOUT 1 GND BLOCK DIAGRAM Revision Date: January 2001 Document No. 510 - 30 - 06 GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996 Web Site: www.gennum.com E-mail: hipinfo@gennum.com ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Operating Temperature Storage Temperature o PIN CONNECTION VALUE / UNITS 5V DC -10 to +40oC -20o to +70oC B IN B OUT A IN A OUT 5 6 C IN C OUT V B D IN 1 10 D OUT CAUTION CLASS 1 ESD SENSITIVITY GND ELECTRICAL CHARACTERISTICS VOUT Pin voltage measured with conditions as shown in Test Circuit Positive Current corresponds to current INTO the pin Negative Current corresponds to current OUT of the pin Conditions: Frequency = 1 kHz, Temperature = 25oC, Supply Voltage V = 1.3 VDC B PARAMETER Total Current Input Bias Voltage Input Bias Current Output Voltage Swing - Hi SYMBOL ITOT VBIAS IBIAS VOH CONDITIONS MIN 115 500 TYP 210 570 0 580 MAX 305 620 50 - UNITS A mVDC nA mVDC RF = 1 M VIN = 0.4 VDC' RF = IL = -10 A, (Note 1) IIN = +1 A' RF = IL = +10 A, (Note 2) -50 200 Output Voltage Swing - Lo VOL AVOL IRN THD 200 280 - mVDC Open Loop Voltage Gain Input Referred Noise Harmonic Distortion Current Drive Capability 46 NFB 0.2 to 10kHz at 12dB/Oct A, C, D, B - 56 1 1 30 60 - dB VRMS % A A All Parameters and Switches remain as shown in Test Circuit unless otherwise stated in "Conditions" Column Notes: 1 VOH = VOUT - VOUT (IL = -10 A for Blocks A, C, D, IL = -20 A for Block B) 2 VOL = VOUT - VOUT (IL = +10 A for Blocks A, C, D, IL = +20 A for Block B) RF = 0 RS 180 VRMS at 1kHz 3.92k VIN CS 1.0 a -A to -D b S1 VOUT IL = 0 All resistors in ohms, all capacitors in F unless otherwise stated Fig. 1 LX509 Test Circuit 510 - 30 - 06 2 8 BASE CURRENT COMPENSATION 10 2 7 4 9 3 6 5 1 Fig. 2 Functional Schematic RF C11 V1 V2 V3 R1 R2 R3 R12 -A VO V1 C1 C1 -A C10 R10 Fig. 3a Summing Amplifier R2 C2 High Pass R11 RF1 C4 R5 -B VO C9 R9 RIN1 V1 -A C1 4.7k R2 R F2 T V2 R3 C3 -C R4 R3 Band Pass R1 C5 VO -B RIN2 V2 -C C2 4.7k V3 C7 R6 R7 C8 -D R8 Fig. 3b Mixing Circuit C6 Low Pass R1 C4 C1 MIC -A R2 M T C2 -C TELE COIL C3 R3 -B VO RF Fig. 3d Multi-Band Filtering (for Filter Design refer to Note 600-9, Active Filtering for Hearing Aids) All resistors in ohms, all capacitors in F unless otherwise stated Fig. 3c Mic / Telecoil Preamplifier Fig. 3 LX509 Application Circuits 3 510 - 30 - 06 0 4 RELATIVE OUTPUT (dB) -20 RF = 100k 0 CS = 0.22 CS = 0.1 OUTPUT (dBV) -40 -4 -60 RF = 47k RF = 10k RF = 3.3k -8 CS = 0.033 -80 -12 -100 -16 CS = 0.047 RF = 22k -120 -130 -110 -90 -70 -50 -30 -10 -20 20 200 2k 20k INPUT (dBV) FREQUENCY (Hz) Fig. 4 I/O Characteristics for Various RF Values Fig. 5 Closed Loop Frequency Response for Various CS Values 4 60 55 50 0 RELATIVE GAIN (dB) -4 GAIN (dB) 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 45 40 35 30 -8 -12 -16 25 -20 10 20 100 1k 10k 100k SUPPLY VOLTAGE (V) FREQUENCY (Hz) Fig. 6 Gain vs Supply Voltage Fig. 7 Preamplifier Open Loop Frequency Response 40 RELATIVE TOTAL CURRENT (A) 20 0 -20 -40 -60 -20 -10 0 10 20 30 40 50 TEMPERATURE (oC) Fig.8 Total Current vs Temperature GENNUM CORPORATION MAILING ADDRESS: P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 Tel. +1 (905) 632-2996 Fax +1 (905) 632-2814 SHIPPING ADDRESS: 970 Fraser Drive, Burlington, Ontario, Canada L7L 5P5 DOCUMENT IDENTIFICATION: DATA SHEET The product is in production. Gennum reserves the right to make changes at any time to improve reliability, function or design, in order to provide the best product possible. REVISION NOTES: Changes to standard packaging information. GENNUM JAPAN CORPORATION C-101, Miyamae Village, 2-10-42 Miyamae, Suginami-ku, Tokyo 168-0081, Japan Tel. +81 (3) 3334-7700 Fax: +81 (3) 3247-8839 Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. (c) Copyright July 1988 Gennum Corporation. All rights reserved. Printed in Canada. 510 - 30 - 06 4 |
Price & Availability of LX509
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |