MAX274AEWI ,8th-order continuous-time active filterFeatures
. Continuous-Time Filter - No Clock, No Clock Noise
. Implement Butterworth, Chebyshev ..
MAX274AEWI+ ,4th- and 8th-Order, Continuous-Time Active FiltersELECTRICAL CHARACTERISTICS (continued) - MAX274
(V+ = 5V, V- = RN, test circuit A of Figure 1a, ..
MAX274BCWI ,4th- and 8th-Order Contnuous-Time Active FiltersELECTRICAL CHARACTERISTICS -- MAX274
(V+ 2T2 5V, V-zz: - -51/, test circuit A of Figure la, TAzz ..
MAX274BEWI ,8th-order continuous-time active filterELECTRICAL CHARACTERISTICS -- MAX274
(V+ 2T2 5V, V-zz: - -51/, test circuit A of Figure la, TAzz ..
MAX2750EUA ,2.4GHz Monolithic Voltage-Controlled OscillatorsFeaturesThe MAX2750/MAX2751/MAX2752 are self-contained volt- Guaranteed Frequency Tuning Rangeage ..
MAX2753EUA ,2.4GHz Monolithic Voltage-Controlled Oscillator with Differential OutputsFeaturesThe MAX2753 is a self-contained voltage-controlled oscil- Guaranteed Frequency Tuning Ran ..
MAX604CSA+T ,5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 500mA Linear RegulatorsFeatures' 500mA Output Current, with Foldback CurrentThe MAX603/MAX604 low-dropout, low quiescent c ..
MAX604CSA-T ,5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 500mA Linear RegulatorsApplicationsMAX604EPA -40°C to +85°C 8 Plastic DIP5V and 3.3V RegulatorsMAX604ESA -40°C to +85°C 8 ..
MAX604CSA-T ,5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 500mA Linear RegulatorsGeneral Description ________
MAX604EPA ,3.3V or adjustable, low-dropout, low quiescent currrent, 500mA linear regulator.Features' 500mA Output Current, with Foldback CurrentThe MAX603/MAX604 low-dropout, low quiescent c ..
MAX604ESA ,5V/3.3V or Adjustable, Low-Dropout, Low IQ, 500mA Linear RegulatorsMAX603/MAX60419-0269; Rev 0; 9/945V/3.3V or Adjustable, Low-Dropout, Low I , 500mA Linear Regulator ..
MAX604ESA ,5V/3.3V or Adjustable, Low-Dropout, Low IQ, 500mA Linear RegulatorsELECTRICAL CHARACTERISTICS(V = 6V (MAX603) or 4.3V (MAX604), C = C = 10µF, OFF = V , SET = GND, T = ..
MAX274AENG-MAX274AEWI-MAX274BEWI-MAX275AEPP-MAX275AEWP-MAX275BCPP-MAX275BEPP
8th-order continuous-time active filter
ai'ifilie,5:tlililii.i..ii.ii
General Description
The MAX274 and MAX275 are continuous-time active
filters consisting of independent cascadable 2nd-order
sections. Each section can implement any all-pole
bandpass or Iowpass filter response, such as Butter-
worth, Bessel, and Chebyshev, and is programmed by
four external resistors. The MAX274/MAX275 provide
lower noise than switched-capacitor filters, as well as
superior dynamic performance - both due to the con-
tinuous-time design. Since continuous-time filters do not
require a clock, aliased and clock noise are eliminated
with the MAX274/MAX275.
The MAX274 comprises four 2nd-order sections, permit-
ting 8th-order filters to be realized. Center frequencies
range up to 150kHz, and are accurate to within 11% over
the full operating temperature range. Total harmonic
distortion (THD) is typically better than -89dB
The MAX275 comprises two 2nd-order sections, permit-
ting 4th-order filters to he realized. Center frequencies
range up to 300kHz, and are accurate to within H).9%
over the full operating temperature range. Total harmonic
distortion (THD) is typically better than -86dB
Both filters operate from a single +5V supply or from dual
i5V supplies
Applications
Low-Distortion Anti-Aliasing Filters
DAC Output Smoothing Filters
Modems
Audio/Sonar/Avionics Frequency Filtering
Vibration Analysis
Pin Configurations
2fleflL4ll2CfLeryl]
and 8th-Om‘ler (tbttinitiiinuouw/iriime
Active [Filters
Features
. Continuous-Time Filter - No Clock. No Clock Noise
t lm lement Butterworth, Chebyshev, Bessel and
Ot er Filter Responses
. Lowpass, Bandpass Outputs
t Operate from a Single +5V Supply or
Dual MN Supplies
t Design Software Available
. MAX274 Evaluation Kit Available
. 8th-Order - Four 2nd-Order Sections (MAX274)
4th-Order - Two 2nd-Order Sections (MAX275)
. Center-Frequency Range:
150kHz for MAX274
300kHz for MAX275
. Low Noise: -86dB THD Typical for MAX274
-89dB THD Typical for MAX275
. Center-Frequency Accurate Over Temp:
within 11% for MAX274
within i0.9% for MAX275
Ordering Information
PART TEMP. RANGE PIN-PACKAGE -
MAX274ACNG DC to +70''C 24 Narrow Plastic DIP
MAX274BCNG (YC to +70''C 24 Narrow Plastic DIP
MAX274ACWI 0''C to o70''C 28 Wide so _
MAX274BCWI 0°C to +70''C 28 Wide so
MAX274BC/D 0°C to +70''C Dice"
Ordering Information continued on last page
. Contact factory for dice specifications.
Typical Operating Circuits
TOPVIEW LPOA 1 . V E LPOD
INA E Ei IND
BPIA 3 MAXIM 22 BPID
BPOA [f MAX274 'ff BPOD
V+ E El GND
LPIA E Til LPID
LPIB [Z Til LPIC
FO E Li v-
BPOB E E, BPOC
BPIB [jj)] Gl BPIC
ma E E INC
LPOB IE Es] LPOC
Pin Ctmfiguratitms continued on lastpage DIP
IN +5V
11, AN
51 8 I 17
22 200k
MAX274
10 15 195k
200k 12 14 35.3k
10kHz 8TH-ORDER
BUTTERWORTH LOWPASS FILTER
PIN NUMBERS ARE FOR DIP.
Typical Operating Circuits continued on last page
MAXI/l/l
Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at .
MM AE/a-JQMMO$/9£ZXWW/W£ZXVM’I
MAXZ74/MAX275/§otfflware/EV [Kit
4m- and 8th-@trdetr Gonitinuousdriane
Active Filters
ABSOLUTE MAXIMUM RATINGS
V+ to V- .................................. -O.3V, 12V
Input Voltage to GND (any input) ....... V- - 0.3V, V+ + 0.3V
Continuous Power Dissipation (TA = +70''C)
MAX274
24-Pin Narrow Plastic DIP
(derate 13.33mW/°C above +70°C) . t .
28-Pin Wide so (derate 12.50mW/°C above +70°)
24-Pin CERDIP (derate 12.50mW/°C above +70°C) .
MAX275
1067mW
. 1000mW
1000mW
20-Pin Plastic DIP(derate 11.11mW/'C above +70°C) 889mW
20-Pin Wide so (derate 10.00mW/°C above +70°) . . 800mW
20-Pin CERDIP (derate 11.11mW/oC above +70°C) . . 889mW
Operating Temperature Ranges:
MAX27_ _C_ _
MAX27_ _E_
.......................... 0°C to +70°C
_ ......................... -40''C to +85"C
MAX27_ _MRG .......................
Storage Temperature Range ..............
-55°C to +125°C
-65'C to +165°C
Lead Temperature (soldering, 10 sec) .............. +300°C
Stresses beyond those listed under 'Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational secNyns of the specifications is not implied Exposure to
absolute maximum rating conditions for extended periods may affect device reliability,
ELECTRICAL CHARACTERISTICS - MAX274
(V+ = 5V, V- = -5V, test circuit A of Figure la, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER l SYMBOL l CONDITIONS MIN TYP MAX UNITS
FILTER CHARACTERISTICS
Maximum Operating Frequency 10 N1ng
Center-Frequency Range Fo (Note 1) £813) Hz
MAX274A -1.0 1.0
Center-Frequency Accuracy Fo %
MAX274B -1.4 1.4
' MAX274A -1 0 10
0 Accuracy - Unadjusted %
MAX274B -15 15
Q Accuracy - Adjusted Scaled for bandwidth compensation :28 %
Fo Temperature Coefficient AFo/AT (Note 2) -28 ppm/"C
0 Temperature Coefficient AQ/AT (Note 2) 160 ppm/°C
. ' LPO Figure la, IHz to 10Hz 23
Wideband Noise VN I -.' F V
OISE testorcuit B 10Hz to 10kHz 120 [l RMS
DC CHARACTERISTICS
' Assume ideal MAX274A -2 2 0
DC Lowpass Gain Accuracy HOLP resistors MAX274B -3 3 /o
MAX274A -200 200
MAX274B -300 300
Offset Voltage at Outputs Vos mV
MAX274A -40 4O
MAX274B -8O 80
Offset Voltage Drift AVos/AT 20 uV/°C
Leakage Current at FC Pin IFC -10 10 pA
DYNAMIC FILTER CHARACTERISTICS
FTEST = 1kHZ.
Figure 1a, -86
Si It N t I Di t ti SINAD testcircuitB LPO dB
I na - o- Olse us IS or Ion -'
g p FTEST = 10kHz, VLPO = 8Vp-p
Figure la, -82
test circuit C
JthfLOtLen
