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MAX5490TB05000+T

P1-P3P4-P6P7-P8
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
Features
♦ Resistance Ratios from 1:1 to 100:1
♦ Custom Ratios Available Upon Request
♦ Tight Initial Ratio Accuracy
0.035% (MAX5490A)
0.05% (MAX5490B)
0.1% (MAX5490C)
♦ Low 1ppm/°C (typ) Resistor-Ratio-Drift
♦ Up to 80V Operating Voltage Across Sum of R1
and R2
♦ Tiny 3-Pin SOT23 Package
MAX5490
100k
Ω
Precision-Matched Resistor-Divider in
SOT23
________________________________________________________________ Maxim Integrated Products 1
P2
1
3 P3
P1
MAX5490
SOT23
TOP VIEW
2
Pin Configuration
Ordering Information*
P1
P2
P3
MAX5490
R
2
R
1
Block Diagram
19-3337; Rev 2; 3/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
*See the How to Order section for more details.
PA R T
T EM P
R A N G E
PIN -
PA C K A G E
R A T IO
A C C U R A C Y
( % )
M AX 5490
_A_ _ _ _ _ - T- 55° C to + 125°C 3 S O T23- 3
0.035
M AX 5490_B_ _ _ _ _ - T- 55° C to + 125°C 3 S O T23- 3
0.05
M AX 5490_C _ _ _ _ _ - T- 55° C to + 125°C 3 S O T23- 3
0.1
MAX5490
100k
Ω
Precision-Matched Resistor-Divider in
SOT23
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(T
A
= -55°C to +125°C, unless otherwise noted. Typical values are at T
A
= +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 (T
A
= +70°C)
3-Pin SOT23 (derate 7.1mW/°C above +70°C).........571.4mW
3-Pin SOT23 (θ
J-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
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX5490_A, T
A
= +25°C ±0.035
MAX5490_B, T
A
= +25°C ±0.05
Initial Resistor Ratio Error (Note 2)
MAX5490_C, T
A
= +25°C ±0.1
%
1:1 ≤ ratio ≤ 10:1 1 2
Resistance-Ratio Temperature
Coefficient (Note 3)
10:1 ≤ ratio ≤ 25:1 2 4
ppm/°C
Absolute Temperature Coefficient
of Resistance
TCR (Note 4) 35 ppm/°C
Voltage Coefficient of Resistance VCR (Note 5) 0.1 ppm/V
End-to-End Resistance (R
1
+ R
2
)T
A
= +25°C 95 100 105 kΩ
Continuous Working Voltage
Between P1 and P2
V
P1-P2
-80 +80 V
Continuous Current I
R1
, I
R2
840 µA
P1, P2, P3 Capacitance 2pF
Maximum Power Rating 67.2 mW
Resistance Ratio Long-Term
Stability
2000 hours at +70°C ±0.03 %
-3dB Bandwidth f
3dB
1:1 ratio (Note 6) 3 MHz
Thermal Noise 45 µV
RMS
Current Noise
In accordance with MIL-STD-2020
method 30B
-25 dB
Note 1: The MAX5490 is 100% production tested at T
A
= +25°C. Specifications over -55°C to +125°C are guaranteed by design
and characterization.
Note 2: Testing conditions: T
A
= +25°C, V
P1-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
∆
∆
R
R
R
R
T
1
2
1
2
⎛
⎝
⎜
⎞
⎠
⎟
×
∆
∆
RR
RR T
12
12
+
()
+
()
×
and is guaranteed by design, not production tested.
and is tested at 10V and 80V.
MAX5490
100k
Ω
Precision-Matched Resistor-Divider in
SOT23
_______________________________________________________________________________________ 3
9565-25 5 35
-20
-10
0
10
20
30
40
50
-30
-55 125
NORMALIZED RESISTANCE-RATIO DRIFT
vs. TEMPERATURE
MAX5490 toc01
TEMPERATURE (°C)
RATIO DRIFT (ppm)
V
P1-P2
= 10V
RATIO 1:1
-80
-40
0
40
80
120
160
-120
9565-25 5 35-55 125
NORMALIZED RESISTANCE-RATIO DRIFT
vs. TEMPERATURE
MAX5490 toc02
TEMPERATURE (°C)
RATIO DRIFT (ppm)
V
P1-P2
= 10V
RATIO 10:1
9565-25 5 35
-150
-100
-50
0
50
100
150
200
-200
-55 125
NORMALIZED RESISTANCE-RATIO DRIFT
vs. TEMPERATURE
MAX5490 toc03
TEMPERATURE (°C)
RATIO DRIFT (ppm)
V
P1-P2
= 10V
RATIO 25:1
-0.04
-0.03
-0.02
-0.01
0
0.01
0.02
0.03
0.04
02040607010 30 50 80
RESISTANCE-RATIO ACCURACY
vs. VOLTAGE
MAX5490 toc04
VOLTAGE (V)
RATIO ACCURACY (%)
RATIO 25:1
0.1 101 100 1000
FREQUENCY RESPONSE
MAX5490 toc05
FREQUENCY (kHz)
RESPONSE (dB)
6
-18
-12
-9
-3
3
-15
-6
0
1:1 RATIO
C
L
= 10pF
Typical Operating Characteristics
(V
P1-P2
= 10V, T
A
= +25°C, unless otherwise noted.)
Note 5: Resistance-ratio voltage coefficient is defined as
∆
∆
R
R
R
R
V
1
2
1
2
⎛
⎝
⎜
⎞
⎠
⎟
×
and is guaranteed by design, not production tested.
Note 6: Calculate bandwidth by using
1
2πRC
,
where C = C
P3
and
R
RR
RR
=
×
+
12
12
.
DC ELECTRICAL CHARACTERISTICS (continued)
(T
A
= -55°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
P1-P3P4-P6P7-P8

MAX5490TB05000+T

Mfr. #:
Buy MAX5490TB05000+T
Manufacturer:
Maxim Integrated
Description:
Resistor Networks & Arrays 100kOhm Precision Match Res/Divider
Lifecycle:
New from this manufacturer.
Delivery:
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