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PDF MAX5490 Data sheet ( Hoja de datos )
| Número de pieza | MAX5490 | |
| Descripción | 100k Precision-Matched Resistor-Divider in SOT23 | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX5490 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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19-3337; Rev 1; 8/04
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 -40°C to +85°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 extended
-40°C to +85°C temperature range.
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
Applications
Industrial Process Control
Instrumentation
Precision Gain Setting
Medical Equipment
Automatic Test Equipment
Base Stations
Ordering Information*
PART
TEMP
RANGE
PIN-
PACKAGE
RATIO
ACCURACY
(%)
MAX5490_A_ _ _ _ _ -T -40°C to +85°C 3 SOT23-3
MAX5490_B_ _ _ _ _ -T -40°C to +85°C 3 SOT23-3
MAX5490_C_ _ _ _ _ -T -40°C to +85°C 3 SOT23-3
0.035
0.05
0.1
*See the How to Order section for more details.
Block Diagram
Pin Configuration
P1 MAX5490
R1
P3
R2
P2
TOP VIEW
P1 1
P2 2
MAX5490
3 P3
SOT23
________________________________________________________________ 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 www.maxim-ic.com.
1 page  
100kΩ Precision-Matched Resistor-Divider in
SOT23
Typical Applications
A = VOUT = − R1
VIN R2
OUT
A = VOUT = 1 + R1
VIN R2
IN
OUT
P2
IN
P3
MAX5490
P1
R2 R1
P3
P2
MAX5490
P1
R2 R1
Figure 1. Inverting Amplifier Configuration
Figure 2. Noninverting Amplifier Configuration
IN
A = VOUT = R2
VIN R1 + R2
P1
MAX5490
R1
R2
P3
OUT
P2
Figure 3. Buffered Attenuator
IN P1
MAX5490
A = VOUT = R2
VIN R1 + R2
R1
P3
OUT
R2
P2
Figure 4. Attenuator with Buffer
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet MAX5490.PDF ] | |
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