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PDF MAX5404 Data sheet ( Hoja de datos )
| Número de pieza | MAX5404 | |
| Descripción | Dual 256-Tap / Low-Drift / Digital Potentiometers in 10-MAX | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX5404 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
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19-1934; Rev 1; 4/01
Dual 256-Tap, Low-Drift,
Digital Potentiometers in 10-µMAX
General Description
The MAX5403/MAX5404/MAX5405 is a family of dual
linear taper digital potentiometers. Each device has one
3-terminal potentiometer and one 2-terminal variable
resistor (Figure 1). The MAX5403/MAX5404/MAX5405
operate from +2.7V to +5.5V single-supply voltages
and use an ultra-low supply current of 0.1µA. These
devices also provide glitchless switching between
resistors taps as well as a convenient power-on reset
(POR) that sets the wiper to the midscale position at
power-up. The potentiometer consists of a fixed resistor
with a wiper contact that is digitally controlled through a
3-wire serial interface and has 256-tap points. It per-
forms the same function as a discrete potentiometer or
variable resistor.
These parts are ideal for applications requiring digitally
controlled resistors. Three resistance values are avail-
able: 10kΩ (MAX5403), 50kΩ (MAX5404), and 100kΩ
(MAX5405). A nominal resistor-temperature coefficient
of 35ppm/°C end-to-end and 5ppm/°C ratiometric make
the MAX5403/MAX5404/MAX5405 ideal for applications
requiring low temperature-coefficient variable resistors,
such as adjustable-gain circuit configurations.
The MAX5403/MAX5404/MAX5405 are available in a 10-
pin µMAX package. Each device is guaranteed over the
extended industrial temperature range (-40°C to +85°C).
Applications
Mechanical Potentiometer Replacement
Low-Drift Programmable Gain Amplifier (PGA)
Volume Control
LCD Screen Adjustment
Adjustable Voltage Reference
Programmable Filters, Delays, Time Constant
Impedance Matching
Features
o 10-Pin µMAX Small Footprint Package
o 256-Tap Positions
o Ultra Low 0.1µA Supply Current
o +2.7V to +5.5V Single-Supply Operation
o Low End-To-End Temperature Coefficient:
35ppm/°C
o Low Ratiometric Temperature Coefficient:
5ppm/°C
o Power-On Reset: Wiper Goes to Midscale
(Position 128)
o Glitchless Switching Between Resistor Taps
o 3-Wire SPI™ -Interface Compatible
o 10kΩ/50kΩ/100kΩ Resistor Values
Ordering Information
PART
MAX5403EUB
MAX5404EUB
MAX5405EUB
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 µMAX
10 µMAX
R (kΩ)
10
50
100
Pin Configuration
SPI is a registered trademark of Motorola, Inc.
TOP VIEW
GND 1
LB 2
HB 3
WB 4
CS 5
MAX5403
MAX5404
MAX5405
µMAX
10 LA
9 WA
8 VDD
7 SCLK
6 DIN
________________________________________________________________ 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  
Dual 256-Tap, Low-Drift,
Digital Potentiometers in 10-µMAX
Typical Operating Characteristics (continued)
(VDD = +5.0V, TA = +25°C, unless otherwise noted.)
VARIABLE RESISTOR INL
vs. INPUT CODE (50kΩ)
0.04
0.02
0.00
-0.02
-0.04
-0.06
-0.08
-0.10
-0.12
-0.14
-0.16
0 32 64 96 128 160 192 224 256
INPUT CODE (DECIMAL)
VOLTAGE-DIVIDER DNL
vs. INPUT CODE (10kΩ)
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
-0.01
-0.02
0 32 64 96 128 160 192 224 256
INPUT CODE (DECIMAL)
0.12
0.11
0.10
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
-0.01
-0.02
0
VARIABLE RESISTOR DNL
vs. INPUT CODE (100kΩ)
32 64 96 128 160 192 224
INPUT CODE (DECIMAL)
256
VOLTAGE-DIVIDER INL
vs. INPUT CODE (10kΩ)
0.15
0.10
0.05
0.00
-0.05
-0.10
-0.15
-0.20
0 32 64 96 128 160 192 224 256
INPUT CODE (DECIMAL)
VARIABLE RESISTOR INL
vs. INPUT CODE (100kΩ)
0.15
0.10
0.05
0.00
-0.05
-0.10
-0.15
-0.20
0 32 64 96 128 160 192 224 256
INPUT CODE (DECIMAL)
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
-0.01
-0.02
0
VOLTAGE-DIVIDER DNL
vs. INPUT CODE (50kΩ)
32 64 96 128 160 192 224
INPUT CODE (DECIMAL)
256
VOLTAGE-DIVIDER INL
vs. INPUT CODE (50kΩ)
0.15
0.10
0.05
0.00
-0.05
-0.10
-0.15
-0.20
0 32 64 96 128 160 192 224 256
INPUT CODE (DECIMAL)
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
-0.01
-0.02
0
VOLTAGE-DIVIDER DNL
vs. INPUT CODE (100kΩ)
32 64 96 128 160 192 224
INPUT CODE (DECIMAL)
256
VOLTAGE-DIVIDER INL
vs. INPUT CODE (100kΩ)
0.15
0.10
0.05
0.00
-0.05
-0.10
-0.15
-0.20
0 32 64 96 128 160 192 224 256
INPUT CODE (DECIMAL)
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet MAX5404.PDF ] | |
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