MAX5483EUD-T Maxim Integrated, MAX5483EUD-T Datasheet

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MAX5483EUD-T

Manufacturer Part Number
MAX5483EUD-T
Description
Digital Potentiometer ICs
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX5483EUD-T

Resistance
10 kOhms
Temperature Coefficient
35 PPM / C
Tolerance
0.25
Number Of Pots
Single
Taps Per Pot
1024
Wiper Memory
Non Volatile
Buffered Wiper
Buffered
Digital Interface
Serial (3-Wire, SPI)
Description/function
1024-Tap 10k Nonvolatile Linear-Taper Digital Potentiometer (Variable Resistor)
Operating Supply Voltage
5 V
Supply Current
1 uA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Supply Voltage - Max
5.25 V
Supply Voltage - Min
2.7 V
Pin Configurations appear at end of data sheet.
Functional Diagrams continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
The MAX5481–MAX5484 10-bit (1024-tap) nonvolatile,
linear-taper, programmable voltage-dividers and vari-
able resistors perform the function of a mechanical
potentiometer, but replace the mechanics with a pin-
configurable 3-wire serial SPI™-compatible interface or
up/down digital interface. The MAX5481/MAX5482 are
3-terminal voltage-dividers and the MAX5483/MAX5484
are 2-terminal variable resistors.
The MAX5481–MAX5484 feature an internal, non-
volatile, electrically erasable programmable read-only
memory (EEPROM) that stores the wiper position for ini-
tialization during power-up. The 3-wire SPI-compatible
serial interface allows communication at data rates up
to 7MHz. A pin-selectable up/down digital interface is
also available.
The MAX5481–MAX5484 are ideal for applications
requiring digitally controlled potentiometers. Two end-to-
end resistance values are available (10kΩ and 50kΩ) in a
voltage-divider or a variable-resistor configuration (see
the Selector Guide ). The nominal resistor temperature
coefficient is 35ppm/°C end-to-end, and only 5ppm/°C
ratiometric, making these devices ideal for applications
requiring low-temperature-coefficient voltage-dividers,
such as low-drift, programmable gain-amplifiers.
The MAX5481–MAX5484 operate with either a +2.7V to
+5.25V single power supply or ±2.5V dual power sup-
plies. These devices consume 400µA (max) of supply
current when writing data to the nonvolatile memory
and 1.0µA (max) of standby supply current. The
MAX5481–MAX5484 are available in a space-saving
(3mm x 3mm), 16-pin TQFN, or a 14-pin TSSOP pack-
age and are specified over the extended (-40°C to
+85°C) temperature range.
Gain and Offset
Adjustment
LCD Contrast Adjustment
Pressure Sensors
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
Ordering Information continued at end of data sheet.
MAX5481ETE+
MAX5481EUD+
PART
PIN-PACKAGE
16 TQFN-EP*
14 TSSOP
10-Bit, Nonvolatile, Linear-Taper Digital
Functional Diagrams
Ordering Information
General Description
Low-Drift Programmable
Gain Amplifiers
Mechanical Potentiometer
Replacement
Applications
TOP MARK
ACP
♦ 1024 Tap Positions
♦ Power-On Recall of Wiper Position from
♦ 16-Pin (3mm x 3mm x 0.8mm) TQFN or 14-Pin
♦ 35ppm/°C End-to-End Resistance Temperature
♦ 5ppm/°C Ratiometric Temperature Coefficient
♦ 10kΩ and 50kΩ End-to-End Resistor Values
♦ Pin-Selectable SPI-Compatible Serial Interface or
♦ 1µA (max) Standby Current
♦ Single +2.7V to +5.25V Supply Operation
♦ Dual ±2.5V Supply Operation
Selector Guide appears at end of data sheet.
SPI is a trademark of Motorola, Inc.
Pin Configurations continued at end of data sheet.
Nonvolatile Memory
TSSOP Package
Coefficient
Up/Down Digital Interface
MAX5481–MAX5484
TOP VIEW
*SEE FUNCTIONAL DIAGRAM
**CONNECT EXPOSED PAD TO V
*CONNECT EXPOSED PAD TO V
GND
GND
N.C.
N.C.
V
V
V
V
DD
DD
SS
SS
13
14
15
16
13
14
15
16
+
+
Potentiometers
12
12
1
1
INTERFACE
INTERFACE
11
11
TQFN
TQFN
2
2
SS
Pin Configurations
SS
MAX5481*
MAX5482*
10
10
MAX5483
MAX5484
3
3
9
9
4
4
**EP
*EP
8
7
6
5
8
7
6
5
V
N.C.
N.C.
N.C.
V
N.C.
N.C.
N.C.
19-3708; Rev 5; 4/10
SS
SS
Features

Related parts for MAX5483EUD-T

MAX5483EUD-T Summary of contents

Page 1

... Pin Configurations appear at end of data sheet Exposed pad. Functional Diagrams continued at end of data sheet. Ordering Information continued at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com. MAX5481–MAX5484 ♦ ...

Page 2

... A MIN TYP MAX 10 ±2 ±2 ±1 ± -2 -0. +3 +1.45 +5 7.5 10 12.5 37.5 50 62.5 60 MAX5481 6.3 MAX5482 25 10 -1 -1.3 +4 +0. +0. Maxim Integrated UNITS Bits LSB LSB ppm/°C ppm/°C LSB LSB kΩ pF kΩ Bits LSB LSB ppm/°C ...

Page 3

... Wiper -3dB Bandwidth Total Harmonic Distortion NONVOLATILE MEMORY RELIABILITY Data Retention Endurance POWER SUPPLY Single-Supply Voltage Dual-Supply Voltage Average Programming Current Peak Programming Current Standby Current Maxim Integrated = 0V 0V -40°C to +85°C, unless otherwise noted. Typical values are SYMBOL ...

Page 4

... A and The wiper termi 0V. For V = +5V, the wiper terminal is dri +3V, the wiper termi 0.5V) and (V DD Maxim Integrated UNITS µs MHz ...

Page 5

... CODE DNL vs. CODE (MAX5481) 1 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 128 256 384 512 640 768 896 1024 CODE Maxim Integrated MAX5481–MAX5484 Typical Operating Characteristics DNL vs. CODE (MAX5483) 1 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 128 256 384 512 640 768 896 1024 CODE INL vs ...

Page 6

... CODE DNL vs. CODE (MAX5482) 1 0.8 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 0 128 256 384 512 640 768 896 1024 CODE WIPER RESISTANCE vs. CODE (VARIABLE RESISTOR -40° 128 256 384 512 640 768 896 1024 CODE Maxim Integrated ...

Page 7

... CHANGE WL vs. TEMPERATURE (VARIABLE RESISTOR) 2.0 CODE = 11 1111 1111 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 -40 - TEMPERATURE (°C) Maxim Integrated MAX5481–MAX5484 Typical Operating Characteristics (continued) WIPER RESISTANCE vs. CODE (VARIABLE RESISTOR 128 256 384 512 640 768 896 1024 CODE WIPER RESISTANCE vs ...

Page 8

... FREQUENCY (kHz) VARIABLE-RESISTOR TEMPERATURE COEFFICIENT vs. CODE 700 600 500 400 300 200 10kΩ 50kΩ 100 0 0 128 256 384 1 10 100 -40°C TO +85°C A 512 640 768 896 1024 CODE Maxim Integrated ...

Page 9

... GND — — EP Maxim Integrated MAX5481–MAX5484 High Terminal Wiper Terminal Low Terminal No Connection. Not internally connected. Negative Power-Supply Input. For single-supply operation, connect V supply operation, -2.5V ≤ V ≤ -0.2V as long with a 0.1µF ceramic capacitor as close to the device as possible. ...

Page 10

... Positive Power-Supply Input (+2.7V ≤ V ceramic capacitor as close to the device as possible. Exposed Pad (TQFN Only). Externally connect Pin Description (continued) FUNCTION to GND. For dual ≤ 5.25V. Bypass ≤ +5.25V). Bypass V to GND with a 0.1µ leave unconnected GND SS Maxim Integrated ...

Page 11

... Nonvolatile, Linear-Taper Digital V DD GND SCLK(INC) DIN(U/D) NOTE: THE MAX5481/MAX5482 ARE NOT INTENDED FOR CURRENT TO FLOW THROUGH THE WIPER (SEE THE MAX5481/MAX5482 PROGRAMMABLE VOLTAGE-DIVIDER SECTION). Maxim Integrated 10-BIT 10 10-BIT NV LATCH MEMORY POR SPI INTERFACE MUX UP/DOWN INTERFACE MAX5481–MAX5484 ...

Page 12

... Calculate the wiper as follows ⎡ ⎤ ⏐ ⏐ ⏐ + ⏐ − ⎢ HL FSE ZSE ⎥ ⎢ ⎥ W 1023 ⎢ ⎥ ⎣ ⎦ SPI/UD + ⏐ ⏐ ZSE Maxim Integrated ...

Page 13

... The programmable resolution of this resistance is equal to the nominal end-to-end resistance divided by 1024 (10-bit resolution). For example, each nominal segment resistance is 9.8Ω and 48.8Ω for the MAX5483 and the MAX5484, respectively. Maxim Integrated 768 896 1024 Figure 2. Resistance from vs. Code (10k Ω Voltage-Divider) Table 1 ...

Page 14

... — — — — — — — — — — — — — — t CSW t CS1 CSH Write Wiper Register 18 19 … — … — … X — — … — — — … — Maxim Integrated ...

Page 15

... SCLK(INC DIN(U/D) Figure 4. Serial SPI-Compatible Interface Format SCLK(INC DIN(U/ ACTION Figure 5. Write Wiper Register Operation Maxim Integrated ...

Page 16

... Maxim Integrated t BUSY WRITE NV REGISTER (DEVICE IS BUSY) WIPER REGISTER UPDATED ...

Page 17

... IS NOT A DIGITAL SIGNAL. IT REPRESENTS A WIPER TRANSITION. W SCLK(INC) MUST BE AT LOGIC HIGH WHEN DIN(U/D) CHANGES STATE. Figure 8. Up/Down Serial-Interface Timing Diagram (SPI/ Maxim Integrated Standby Mode The MAX5481–MAX5484 are ideal for circuits requiring digitally controlled adjustable resistance, such as LCD contrast control (where voltage biasing adjusts the dis- play contrast), or programmable filters with adjustable gain and/or cutoff frequency ...

Page 18

... V OUT MAX480 Figure 12. Programmable Filter V REF H MAX5481 MAX5482 W L MAX5483 MAX5484 MAX5483 MAX5484 MAX5483 R2 MAX5484 W L ⎛ ⎞ ⎜ ⎟ ⎝ ⎠ π × × OUT V OUT Maxim Integrated ...

Page 19

... Chip Information PROCESS: BiCMOS Maxim Integrated MAX5481–MAX5484 Ordering Information (continued) END-TO-END RESISTANCE (kΩ) MAX5482ETE+ 10 MAX5482EUD+ 10 MAX5483ETE+ 50 MAX5483EUD+ 50 MAX5484ETE+ 10 MAX5484EUD+ 10 Note: All devices are specified over the -40°C to +85°C operating temperature range Denotes a lead(Pb)-free/RoHS-compliant package Exposed pad. + ...

Page 20

... Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 20 © 2010 Maxim Integrated DESCRIPTION Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc. Revision History PAGES CHANGED ...

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