Datasheet MAX5450, MAX5451, MAX5452, MA5453, MAX5454, MAX5455 (Analog Devices)

19-1997; Rev 2; 2/06
Dual, 256-Tap, Up/Down Interface, Digital Potentiometers MAX5450–MAX5455 General Description Features
The MAX5450–MAX5455 are a family of dual digital ♦
Small-Footprint Packages
potentiometers that perform the same function as a
10-Pin µMAX (MAX5450/MAX5452/MAX5454)
mechanical potentiometer or variable resistor. The
14-Pin TSSOP (MAX5451/MAX5453/MAX5455)
MAX5451/MAX5453/MAX5455 have two 3-terminal potentiometers and the MAX5450/MAX5452/MAX5454 ♦
256-Tap Positions
have two 2-terminal variable resistors. The MAX5450– ♦
Independent Up/Down Potentiometer Controls
MAX5455 operate from a +2.7V to +5.5V single-supply
(MAX5451/MAX5453/MAX5455)
voltage and use an ultra-low supply current of 0.1µA. These devices consist of two fixed resistors each ♦
Ultra-Low 0.1µA Supply Current
with 256 digitally-controlled wiper contacts. The conve- ♦
+2.7V to +5.5V Single-Supply Operation
nient power-on reset (POR) sets the wiper to midscale position at power-up and the easy-to-use up/down ♦
Low 35ppm/°C End-to-End Temperature
interface allows glitchless switching between
Coefficient
resistor taps. Six inputs control the 14-pin MAX5451/ ♦ MAX5453/MAX5455 potentiometers. Four inputs control
Power-On Reset Sets Wiper to Midscale
the 10-pin MAX5450/MAX5452/MAX5454 variable resis-
(Position 127)
tors. ♦
Glitchless Switching Between the Resistor Taps
The MAX5450–MAX5455 are ideal for applications ♦
10k
Ω
, 50k
Ω
, 100k
Ω
Resistance Values
requiring digitally-controlled resistors. Three resistance values are available: 10kΩ, 50kΩ, and 100kΩ. An end- to-end resistor temperature coefficient of 35ppm/°C and a ratiometric temperature coefficient of 5ppm/°C
Ordering Information
make the MAX5450–MAX5455 excellent choices for adjustable gain circuit requiring low-temperature drift
PKG PART PIN-PACKAGE R (k
Ω
) CODE
The MAX5450–MAX5455 are available in 10-pin µMAX® and 14-pin TSSOP packages. Each device is guaran-
MAX5450
EUB 10 µMAX 10 U10C-4 teed over the extended–industrial temperature range
MAX5451
EUD 14 TSSOP 10 U14-1 (-40°C to +85°C).
MAX5452
EUB 10 µMAX 50 U10C-4
MAX5453
EUD 14 TSSOP 50 U14-1
Applications MAX5454
EUB 10 µMAX 100 U10C-4
MAX5455
EUD 14 TSSOP 100 U14-1 Mechanical Potentiometer Replacement
Note:
All devices specified over the -40°C to +85°C operating Low-Drift Programmable-Gain Amplifier (PGA) range. Volume Control
Pin Configurations
LCD Screen Adjustment Adjustable Voltage References TOP VIEW Adjustable Linear Regulators Programmable Filters, Delays, Time Constants CS1 1 10 CS1 1 14 CS2 CS2 Impedance Matching U/D 2 9 INC U/D1 2 13 INC1 MAX5450 V U/D2 3 12 INC2 DD 3 8 GND MAX5452 W1 4 MAX5454 7 W2 VDD 4 MAX5451 11 GND MAX5453 L1 5 6 L2 W1 5 10 MAX5455 W2 µMAX is a registered trademark of Maxim Integrated Products, Inc. H1 6 9 H2 µ
MAX
L1 7 8 L2
TSSOP ________________________________________________________________ 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.