MAX292EWE/GG8 Maxim Integrated, MAX292EWE/GG8 Datasheet

MAX292EWE/GG8

Manufacturer Part Number

MAX292EWE/GG8

Description

Active Filter

Manufacturer

Maxim Integrated

Datasheet

1.MAX296CD.pdf (10 pages)

Specifications of MAX292EWE/GG8

Number Of Channels

Cutoff Frequency

25 KHz

Supply Voltage - Max

11 V

Supply Voltage - Min

4.75 V

Operating Supply Voltage

5 V

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Pin Configurations appear at end of data sheet.

Functional Diagrams continued at end of data sheet.

UCSP is a trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct

at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.

The MAX291/MAX292/MAX295/MAX296 are easy-to-use,

8th-order, lowpass, switched-capacitor filters that can be

set up with corner frequencies from 0.1Hz to 25kHz

(MAX291/MAX292) or 0.1Hz to 50kHz (MAX295/MAX296).

The MAX291/MAX295 Butterworth filters provide maxi-

mally flat passband response, and the MAX292/MAX296

Bessel filters provide low overshoot and fast settling. All

four filters have fixed responses, so the design task is

limited to selecting the clock frequency that controls the

filter’s corner frequency.

An external capacitor is used to generate a clock using

the internal oscillator, or an external clock signal can be

used. An uncommitted operational amplifier (noninverting

input grounded) is provided for building a continuous-

time lowpass filter for post-filtering or anti-aliasing.

Produced in an 8-pin DIP/SO and a 16-pin wide SO

package, and requiring a minimum of external compo-

nents, the MAX291 series delivers very aggressive per-

formance from a tiny area.

CLOCK

Pin Configuration is 8-pin DIP/SO.

INPUT

ADC Anti-Aliasing Filter

Noise Analysis

DAC Post-Filtering

50Hz/60Hz Line-Noise Filtering

CLK

Typical Operating Circuit

Functional Diagrams

General Description

MAX29_

+5V

-5V

V+

V-

OP OUT

OP IN-

Applications

OUT

OUTPUT

Switched-Capacitor Filters

o 8th-Order Lowpass Filters:

o Clock-Tunable Corner-Frequency Range:

o No External Resistors or Capacitors Required

o Internal or External Clock

o Clock to Corner Frequency Ratio:

o Low Noise: -70dB THD + Noise (Typ)

o Operate with a Single +5V Supply or

o Uncommitted Op Amp for Anti-Aliasing or Clock-

o 8-Pin DIP and SO Packages

Ordering Information continued at end of data sheet.

* Contact factory for dice specifications.

** Contact factory for availability and processing to MIL-STD-883.

MAX291CPA

MAX291CSA

MAX291CWE

MAX291C/D

MAX291EPA

MAX291ESA

MAX291EWE

MAX291MJA

Butterworth (MAX291/MAX295)

Bessel

0.1Hz to 25kHz (MAX291/MAX292)

0.1Hz to 50kHz (MAX295/MAX296)

100:1 (MAX291/MAX292)

Dual ±5V Supplies

Noise Filtering

16-pin Wide SO at end of data sheet.

50:1 (MAX295/MAX296)

PART

TOP VIEW

8th-Order, Lowpass,

MAX291/MAX292/

MAX295/MAX296

OP OUT

OP IN-

(MAX292/MAX296)

CLK

V-

-40°C to +85°C

-55°C to +125°C

TEMP. RANGE

0°C to +70°C

Ordering Information

Pin Configurations

DIP/SO

MAX29_

8 Plastic DIP

8 SO

16 Wide SO

Dice*

8 Plastic DIP

8 SO

16 Wide SO

8 CERDIP**

PIN-PACKAGE

19-4526; Rev 5; 5/10

V+

GND

OUT

Features

Related parts for MAX292EWE/GG8

MAX292EWE/GG8 Summary of contents

Page 1

... Pin Configurations appear at end of data sheet. -5V Functional Diagrams continued at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. Pin Configuration is 8-pin DIP/SO. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com. 8th-Order, Lowpass, ...

Page 2

... MAX295 MAX296 MIN TYP 0.1-25k 0.1-50k 100:1 50 -0.02 o -2.2 -2.7 o -43.0 -48.0 o -70.0 -76.0 o -0.1 -0.2 o -0.6 -0.8 o -2.7 -3.0 o -11.0 -13.0 o -30.0 -34.0 o -47.0 -51.0 o -74.0 -78.0 o -0.02 o -2.2 -2.7 o -43.0 -48.0 o -70.0 -76.0 o -0.1 -0.2 o -0.6 -0.8 o -2.7 -3.0 o -11.0 -13.0 o -30.0 -34.0 o -47.0 -51.0 o -74.0 -78 100kHz CLK MAX UNITS Hz ppm/°C -0.1 -3.2 -0.3 -1.0 -3.3 -15.0 dB -0.1 -3.2 -0.3 -1.0 -3.3 -15.0 Maxim Integrated ...

Page 3

... CAPACITANCE (nF) Maxim Integrated Switched-Capacitor Filters = MIN MAX CONDITIONS = 100kHz CLK = 1000pF = CLK = - CLK Typical Operating Characteristics = 100kHz (MAX291/MAX292 CLK NORMALIZED INTERNAL OSCILLATOR FREQUENCY vs. SUPPLY VOLTAGE 1 ...

Page 4

... F = 1kHz MAX296 -6 -8 -10 -12 -14 1. 400 800 INPUT FREQUENCY (Hz) MAX292/296 PHASE RESPONSE 1kHz o -50 -100 -150 -200 MAX291 -250 -300 -350 0 400 800 1.6k 2k INPUT FREQUENCY (Hz 1kHz o MAX296 MAX292 1kHz o MAX292 1.2k 1. 1kHz o 1.2k 1.6k 2k Maxim Integrated ...

Page 5

... MEAS. BANDWIDTH = 30kHz -50 = 1MHz F = 20kHz D: f CLK o INPUT FREQ. = 2kHz -55 MEAS. BANDWIDTH = 80kHz -60 -65 -70 -75 - AMPLITUDE (Vp-p) Maxim Integrated Switched-Capacitor Filters Typical Operating Characteristics (continued) = +25°C, unless otherwise noted.) MAX291 LOW-VOLTAGE FREQUENCY RESPONSE -12 -16 - 1kHz C -24 -28 2.0 1.0 1.1 1.2 1.3 ...

Page 6

... That is, a mismatched component in a biquad design will have a concentrated TIME (200µs/div) A: 3kHz INPUT SIGNAL B: MAX292 BESSEL FILTER RESPONSE WITH F = 10kHz o C: MAX291 BUTTERWORTH FILTER RESPONSE WITH Background Information Maxim Integrated = 10kHz o ...

Page 7

... For external clock applications, the clock circuitry has been designed to interface with +5V CMOS logic. Drive the CLK pin with a CMOS gate powered from 0V and +5V when using either a single +5V supply or dual +5V supplies. The MAX291/MAX292/MAX295/MAX296 supply current increases slightly (<3%) with increasing Maxim Integrated Switched-Capacitor Filters L7 + ...

Page 8

... CERDIP** 0°C to +70°C 8 Plastic DIP 0°C to +70° 0°C to +70°C 16 Wide SO 0°C to +70°C Dice* -40°C to +85°C 8 Plastic DIP -40°C to +85° -40°C to +85°C 16 Wide SO -55°C to +125°C 8 CERDIP** Maxim Integrated ...

Page 9

... N.C. 7 N.C. 8 WIDE SO Maxim Integrated 8th-Order, Lowpass, Switched-Capacitor Filters For the latest package outline information and land patterns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package draw- ings may show a different suffix character, but the drawing per- N ...

Page 10

... Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 10 2010 Maxim Integrated © DESCRIPTION Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc. Revision History PAGES CHANGED — 8 ...

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