MAX5490XC25000+T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX5490XC25000+T ,100kΩ Precision-Matched Resistor-Divider in SOT23ELECTRICAL CHARACTERISTICS(T = -55°C to +125°C, unless otherwise noted. Typical values are at T = + ..
MAX5491LA01000+T ,Precision-Matched Resistor-Divider in SOT23Block Diagram Pin ConfigurationTOP VIEWP1MAX5491P1 1R13 P3MAX5491P3P2 2R2P2SOT23____ Maxim Integrat ..
MAX5491PC02000+T ,Precision-Matched Resistor-Divider in SOT23FeaturesThe MAX5491 precision resistor-divider consists of two♦ Resistance Ratios from 1:1 to 30:1a ..
MAX5491SC03200+T ,Precision-Matched Resistor-Divider in SOT23ELECTRICAL CHARACTERISTICS(T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +2 ..
MAX5494ETE+ ,10-Bit, Dual, Nonvolatile, Linear-Taper Digital PotentiometersFeaturesThe MAX5494–MAX5499 10-bit (1024-tap), dual, non-♦ Wiper Position Stored in Nonvolatile Mem ..
MAX5495ETE+ ,10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometersapplications requiringlow-temperature-coefficient programmable voltage-TOP VIEWdividers such as low ..
MAZ3043 ,Small-signal deviceAbsolute Maximum Ratings T = 25°CaParameter Symbol Rating Unit 1: Anode2: N.C.Average forward curr ..
MAZ3043H ,Silicon planar typeFeatures 1•Mini type package (3-pin)3•Allowing to achieve a high-density set2•Sharp rising performa ..
MAZ3051 ,Small-signal deviceElectrical Characteristics T = 25°C aParameter Symbol Conditions Min Typ Max UnitForward voltage V ..
MAZ3051-L ,Silicon planar typeElectrical characteristics within part numbers T = 25°Ca•V = 2.0 V to 8.2 V (I = 5 mA)Z ZTemperatu ..
MAZ3056-L ,Silicon planar typeAbsolute Maximum Ratings T = 25°Ca0.1 to 0.3Parameter Symbol Rating Unit0.4 ± 0.2Average forward c ..
MAZ3068 ,Small-signal deviceElectrical characteristics within part numbers T = 25°Ca• V = 2.0 V to 8.2 V (I = 5 mA)Z ZTemperat ..

MAX5490XC25000+T
100kΩ Precision-Matched Resistor-Divider in SOT23
General Description
The MAX5490 precision resistor-divider consists of two
accurately matched resistors with access to the ends
and center of the divider. This device offers excellent
resistance matching of 0.035% (A grade), 0.05% (B
grade), and 0.1% (C grade). The MAX5490 provides an
extremely low resistance-ratio temperature drift of
1ppm/°C (typ) over -55°C to +125°C, and has an end-to-
end resistance of 100kΩ. Resistance ratios from 1:1 to
100:1 are available. Five standard ratios are available
(see Table 1), and custom ratios are also available upon
request. The MAX5490 is ideal for precision gain-setting
applications where tight resistance matching and low
temperature drift are necessary.
The MAX5490 is available in a space-saving 3-pin
SOT23 package, and is guaranteed over the military
-55°C to +125°C temperature range.
Applications
Industrial Process Control
Instrumentation
Precision Gain Setting
Medical Equipment
Automatic Test Equipment
Base Stations
FeaturesResistance Ratios from 1:1 to 100:1Custom Ratios Available Upon RequestTight Initial Ratio Accuracy
0.035% (MAX5490A)
0.05% (MAX5490B)
0.1% (MAX5490C)Low 1ppm/°C (typ) Resistor-Ratio-DriftUp to 80V Operating Voltage Across Sum of R1
and R2Tiny 3-Pin SOT23 Package
MAX5490
100kΩPrecision-Matched Resistor-Divider in
SOT23P3
P1
MAX5490
SOT23
TOP VIEW
Pin Configuration
Ordering Information*
MAX5490
Block Diagram
19-3337; Rev 2; 3/05
*See the How to Order section for more details.
PA R T T EM PA N G E
PIN -
PA C K A G EA T IO C C U R A C Y% ) AX 5490_A_ _ _ _ _ - T- 55° C to + 125°C 3 S O T23- 30.035AX 5490_B_ _ _ _ _ - T- 55° C to + 125°C 3 S O T23- 30.05AX 5490_C _ _ _ _ _ - T- 55° C to + 125°C 3 S O T23- 30.1
MAX5490
100kΩPrecision-Matched Resistor-Divider in
SOT23
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(TA= -55°C to +125°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
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 sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage Between P1 and P2.................................................100V
Maximum Current into Any Pin......................................±1.00mA
Continuous Power Dissipation (TA = +70°C)
3-Pin SOT23 (derate 7.1mW/°C above +70°C).........571.4mW
3-Pin SOT23 (θJ-A).....................................................141°C/W
Operating Temperature Range.........................-55°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
MAX5490_A, TA = +25°C±0.035
MAX5490_B, TA = +25°C±0.05Initial Resistor Ratio Error (Note 2)
MAX5490_C, TA = +25°C±0.1
1:1 ≤ ratio ≤ 10:112Resistance-Ratio Temperature
Coefficient (Note 3)10:1 ≤ ratio ≤ 25:124ppm/°C
Absolute Temperature Coefficient
of ResistanceTCR(Note 4)35ppm/°C
Voltage Coefficient of ResistanceVCR(Note 5)0.1ppm/V
End-to-End Resistance (R1 + R2)TA = +25°C95100105kΩ
Continuous Working Voltage
Between P1 and P2VP1-P2-80+80V
Continuous CurrentIR1, IR2840µA
P1, P2, P3 Capacitance2pF
Maximum Power Rating67.2mW
Resistance Ratio Long-Term
Stability2000 hours at +70°C±0.03%
-3dB Bandwidthf3dB1:1 ratio (Note 6)3MHz
Thermal Noise45µVRMS
Current NoiseIn accordance with MIL-STD-2020
method 30B-25dB
Note 1:The MAX5490 is 100% production tested at TA= +25°C. Specifications over -55°C to +125°C are guaranteed by design
and characterization.
Note 2:Testing conditions: TA= +25°C, VP1-P2= 10V and 80V.
Note 3:Resistance-ratio temperature coefficient is defined as
For ratios from 25:1 to 100:1, contact factory.
Note 4:Absolute TCR is defined as T⎜⎞⎟ T ()()×
and is guaranteed by design, not production tested.
and is tested at 10V and 80V.
MAX5490
100kΩPrecision-Matched Resistor-Divider in
SOT2365-25535
NORMALIZED RESISTANCE-RATIO DRIFT
vs. TEMPERATURE
MAX5490 toc01
TEMPERATURE (°C)
RATIO DRIFT (ppm)
VP1-P2 = 10V
RATIO 1:1
NORMALIZED RESISTANCE-RATIO DRIFT
vs. TEMPERATURE
MAX5490 toc02
TEMPERATURE (°C)
RATIO DRIFT (ppm)
VP1-P2 = 10V
RATIO 10:165-25535
NORMALIZED RESISTANCE-RATIO DRIFT
vs. TEMPERATURE
MAX5490 toc03
TEMPERATURE (°C)
RATIO DRIFT (ppm)
VP1-P2 = 10V
RATIO 25:1
RESISTANCE-RATIO ACCURACY
vs. VOLTAGE
MAX5490 toc04
VOLTAGE (V)
RATIO ACCURACY (%)
RATIO 25:1
FREQUENCY RESPONSE
MAX5490 toc05
FREQUENCY (kHz)
RESPONSE (dB)
1:1 RATIO
CL = 10pF
Typical Operating Characteristics
(VP1-P2= 10V, TA= +25°C, unless otherwise noted.)
Note 5:Resistance-ratio voltage coefficient is defined as∆V⎜⎞⎟
and is guaranteed by design, not production tested.
Note 6:Calculate bandwidth by using1
2πRC,where C = CP3andRRR=×
DC ELECTRICAL CHARACTERISTICS (continued)
(TA= -55°C to +125°C, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
MAX5490
100kΩPrecision-Matched Resistor-Divider in
SOT23
Detailed Description
As shown in the Block Diagram, the MAX5490 consists
of two precision, low-ratio-drift resistors with an end-to-
end resistance of 100kΩ(R1+ R2). P3 is the set point
of the divider. The maximum working voltage of the
MAX5490 is 80V. This device offers a wide range of
resistance ratios (R1/R2) from 1:1 to 100:1 and is ideal
for precision operational amplifier gain/attenuation con-
trol. A maximum initial ratio accuracy of 0.035% and a
low 1ppm/°C ratio drift enhance system accuracy.
Applications Information
Self-Heating and Error
Applying a voltage across terminals P1 and P2 causes
the device to heat up due to power dissipation. In high-
voltage applications, consider the error in resistance-
ratio temperature coefficient caused by self-heating.
The worst-case self-heating occurs when the operating
voltage attains its maximum value. Approximate the
result of power dissipation under this condition as:
The thermal resistance from junction to ambient, θJ-A,
for a 3-pin SOT23 package is 141°C/W. Calculate the
resulting temperature rise as:
∆T = 64mW x 141°C/W = 9.02°C
If the ratio temperature coefficient is 1ppm/°C (typ), the
total error introduced by self-heating is:
9.02°C x 1ppm/°C = 9.02ppmVmWDISSMAX =()=()=80
10064Ω
Pin Description
PINNAMEFUNCTION
1P1R1 Connection Terminal
2P2R2 Connection TerminalP3Set-Point Connection Terminal
10001001k
FREQUENCY (Hz)
NOISE (nV/
SPECTRAL NOISE DENSITY
MAX5490 toc06
RATIO 1:1
SIGNAL CONNECTED TO P2
P1 GROUNDED
VP1-P2 = 10V
VP1-P2 = 2V
0.00011k10k100100k
TOTAL HARMONIC DISTORTION
PLUS NOISE RESPONSE
MAX5490 toc07
FREQUENCY (Hz)
THD+N (%)
1:1 RATIO
20Hz TO 20kHz BANDPASS
Typical Operating Characteristics (continued)
(VP1-P2= 10V, TA= +25°C, unless otherwise noted.)
MAX5490
100kΩPrecision-Matched Resistor-Divider in
SOT23
MAX5490
OUT
Figure 3. Buffered Attenuator
MAX5490R1P2
OUT
Figure 1. Inverting Amplifier Configuration
MAX5490
OUT
Figure 4. Attenuator with Buffer
MAX5490R1P2
OUT
Figure 2. Noninverting Amplifier ConfigurationV
OUT ==−1V
OUT ==+11V
OUT ==+V
OUT ==+
Typical Applications
MAX5490
100kΩPrecision-Matched Resistor-Divider in
SOT23
PREFIXMAX5490VA10000-T
ROOT PART NUMBER
MAX5490 = 100kΩ end-to-end
RATIO RANGE
L through W. Resistor ratio must fall in the appropriate
ratio range. (See Table 2.)
RATIO ACCURACY
A = 0.035% (max); B = 0.05% (max); C = 0.1% (max)
RESISTANCE RATIO
Five number ratio designator. Ratios available from 1:1 to 100:1.
Format examples:
01000 = 1:1
02500 = 2.5:1
07538 = 7.538:1
00000 = 100:1
TAPE AND REEL
How to Order
Example Part Numbers
PART NUMBERRESISTOR-RATIO RANGE
RESISTOR-RATIO
ACCURACY
(% MAX)
RESISTOR RATIO
MAX5490PA02500-T2.000 to 2.9990.0352.5:1
MAX5490RB03000-T3.000 to 3.9990.053:1
MAX5490UA07538-T7.538 to 9.9990.0357.538:1
MAX5490VC10000-T10.000 to 19.9990.110:1

Partno	Mfg	Dc	Qty	Available	Descript
MAX5490XC25000+T \|MAX5490XC25000T	MAX	N/a	120	avai	100kΩ Precision-Matched Resistor-Divider in SOT23