MAX5482EUD+T ,10-Bit, Nonvolatile, Linear-Taper Digital PotentiometersELECTRICAL CHARACTERISTICS(V = +2.7V to +5.25V, V = V = 0V, V = V , V = 0V, T = -40°C to +85°C, unl ..
MAX5488ETE ,+2.7 V to +5.25 V, 50 Kom, dual, 256-tap, nonvolatile, SPI-interface, linear-taper digital potentiometerApplications200,000 Wiper Store CyclesLCD Screen Adjustment 50-Year Wiper Data RetentionAudio Volum ..
MAX5488ETE#TG16 ,Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital PotentiometersApplications• 50-Year Wiper Data Retention● LCD Screen Adjustment● +2.7V to +5.25V Single-Supply Op ..
MAX5488EUD+ ,Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital PotentiometersElectrical Characteristics(V = +2.7V to +5.25V, V = V , V = GND, T = -40°C to +85°C, unless otherwi ..
MAX5488EUD+ ,Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital PotentiometersFeaturesThe MAX5487/MAX5488/MAX5489 dual, linear-taper, ● Wiper Position Stored in Nonvolatile Memo ..
MAX5489ETE#TG16 ,Dual, 256-Tap, Nonvolatile, SPI-Interface, Linear-Taper Digital PotentiometersGeneral Description Beneits and
MAZ2270 ,Small-signal deviceElectrical characteristics within part numbers T = 25°CaZener TemperatureTerminalReverseZener volt ..
MAZ22700B ,Silicon planar typeElectrical characteristics within part numbers T = 25°CaZener TemperatureTerminalReverseZener volt ..
MAZ3020 ,Silicon planar typeElectrical Characteristics T = 25°CaParameter Symbol Conditions Min Typ Max UnitForward voltage V ..
MAZ3024 ,Small-signal deviceElectrical Characteristics T = 25°C aParameter Symbol Conditions Min Typ Max UnitForward voltage V ..
MAZ30300H ,Silicon planar type
MAZ30300H ,Silicon planar type
MAX5481EUD+-MAX5481EUD+T-MAX5482EUD+T
10-Bit, Nonvolatile, Linear-Taper Digital Potentiometers
AVAILABLE
General DescriptionThe 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 (10kΩand 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.
Applications
Features1024 Tap Positions Power-On Recall of Wiper Position from
Nonvolatile Memory16-Pin (3mm x 3mm x 0.8mm) TQFN or 14-Pin
TSSOP Package35ppm/°C End-to-End Resistance Temperature
Coefficient5ppm/°C Ratiometric Temperature Coefficient 10kΩand 50kΩEnd-to-End Resistor Values Pin-Selectable SPI-Compatible Serial Interface or
Up/Down Digital Interface1µA (max) Standby Current Single +2.7V to +5.25V Supply OperationDual ±2.5V Supply Operation
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
Ordering InformationVSS
N.C.
VDD
GND101112
SPI/UDDIN(U/D)SCLK(INC)CS321
N.C.
**EP
*EP
N.C.
N.C.
N.C.
VSSINTERFACE
TOP VIEW
TQFN*SEE FUNCTIONAL DIAGRAM
**CONNECT EXPOSED PAD TO VSS
*CONNECT EXPOSED PAD TO VSS
VSS
N.C.
VDD
GND101112
SPI/UDDIN(U/D)SCLK(INC)CS321
N.C.
D.N.C.
N.C.
N.C.
N.C.
VSS
MAX5483
MAX5484
INTERFACE
TQFNMAX5481*
MAX5482*
Pin Configurations
PARTPIN-PACKAGETOP MARK
MAX5481ETE+16 TQFN-EP*ACP
MAX5481EUD+14 TSSOP—
Selector Guide appears at end of data sheet.
Note: All devices are specified over the -40°C to +85°C operatingtemperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Ordering Information continued at end of data sheet.Pin Configurations continued at end of data sheet.
Gain and Offset
Adjustment
LCD Contrast Adjustment
Pressure Sensors
Low-Drift Programmable
Gain Amplifiers
Mechanical Potentiometer
Replacement
MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
ABSOLUTE MAXIMUM RATINGSStresses 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.
VDDto GND...........................................................-0.3V to +6.0V
VSSto GND............................................................-3.5V to +0.3V
VDDto VSS.............................................................-0.3V to +6.0V
H, L, W to VSS..................................(VSS- 0.3V) to (VDD+ 0.3V)
CS, SCLK(INC), DIN(U/D), SPI/UDto GND..-0.3V to (VDD+ 0.3V)
Maximum Continuous Current into H, L, and W
MAX5481/MAX5483.........................................................±5mA
MAX5482/MAX5484......................................................±1.0mA
Maximum Current into Any Other Pin...............................±50mA
Continuous Power Dissipation (TA= +70°C)
16-Pin TQFN (derate 17.5mW/°C above +70°C).....1398.6mW
14-Pin TSSOP (derate 9.1mW/°C above +70°C)..........727mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-60°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Soldering Temperature (reflow).......................................+260°C
ELECTRICAL CHARACTERISTICS(VDD= +2.7V to +5.25V, VSS= VGND= 0V, VH= VDD, VL= 0V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at
VDD= +5.0V, TA= +25°C, unless otherwise noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
DC PERFORMANCE (MAX5481/MAX5482 programmable voltage-divider)ResolutionN10Bits
VDD = +2.7V±2Integral Nonlinearity (Note 2)INLVDD = +5V±2LSB
VDD = +2.7V±1Differential Nonlinearity (Note 2)DNLVDD = +5V±1LSB
End-to-End Resistance
Temperature CoefficientTCR35ppm/°C
Ratiometric Resistance
Temperature Coefficient5ppm/°C
MAX5481-4-2.50Full-Scale ErrorFSEMAX5482-4-0.750LSB
MAX54810+3.3+5Zero-Scale ErrorZSEMAX54820+1.45+5LSB
MAX54817.51012.5End-to-End ResistanceRH-LMAX548237.55062.5kΩ
Wiper CapacitanceCW60pF
MAX54816.3
Resistance from W to L and H
W at code = 15, H and L
shorted to VSS, measure
resistance from W to H, Figures
1 and 2MAX548225
DC PERFORMANCE (MAX5483/MAX5484 variable resistor)ResolutionN10Bits
VDD = +2.7V-1.6
VDD = +3V-4-1.4+4Integral Nonlinearity (Note 3)INL_R
VDD = +5V-4-1.3+4
LSB
VDD = +2.7V+0.45
VDD = +3V-1+0.4+1Differential Nonlinearity (Note 3)DNL_R
VDD = +5V-1+0.35+1
LSB
Variable-Resistor Temperature
CoefficientTCVRVDD = +3V to +5.25V; code = 128 to 102435ppm/°C
MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
ELECTRICAL CHARACTERISTICS (continued)(VDD= +2.7V to +5.25V, VSS= VGND= 0V, VH= VDD, VL= 0V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at
VDD= +5.0V, TA= +25°C, unless otherwise noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSMAX54837.51012.5kΩFull-Scale Wiper-to-End
ResistanceRW-LMAX548437.55062.5kΩ
MAX548370Zero-Scale Resistor ErrorRZCode = 0MAX5484110Ω
Wiper ResistanceRWVDD ≥ +3V (Note 4)50Ω
Wiper CapacitanceCW60pF
DIGITAL INPUTS (CS, SCLK(INC), DIN(U/D), SPI/UD) (Note 5)VDD = +3.6V to
+5.25V2.4
Single-supply operationVDD = +2.7V to
+3.6V
0.7 x
VDDInput-High VoltageVIH
Dual-supply operationVDD = +2.5V, VSS
= -2.5V2.0
Single-supply operationVDD = +2.7V to
+5.25V0.8
Input-Low VoltageVIL
Dual-supply operationVDD = +2.5V, VSS
= -2.5V0.6
Input Leakage CurrentIIN±1µA
Input CapacitanceCIN5pF
DYNAMIC CHARACTERISTICSMAX5481250Wiper -3dB BandwidthWiper at code = 01111
01111, CLW = 10pFMAX548250kHz
MAX54810.026
Total Harmonic DistortionTHD
VDD = +3V, wiper at
code = 01111 01111,
1VRMS at 10kHz is
applied at H, 10pF
load on W
MAX54820.03
NONVOLATILE MEMORY RELIABILITYData RetentionTA = +85°C50Years
TA = +25°C200,000EnduranceTA = +85°C50,000Stores
POWER SUPPLYSingle-Supply VoltageVDDVSS = VGND = 0V2.705.25V
VDDVGND = 0V2.505.25Dual-Supply VoltageVSSVDD - VSS ≤ +5.25V-2.5-0.2V
Average Programming CurrentIPGDuring nonvolatile write; digital inputs =
VDD or GND220400µA
Peak Programming CurrentDuring nonvolatile write only; digital inputs
= VDD or GND4mA
Standby CurrentIDDDigital inputs = VDD or GND, TA = +25°C0.61µA
MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
TIMING CHARACTERISTICS(VDD= +2.7V to +5.25V, VSS= VGND= 0V, VH= VDD, VL= 0V, TA= -40°C to +85°C, unless otherwise noted. Typical values are at
VDD= +5.0V, TA= +25°C, unless otherwise noted.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
ANALOG SECTIONMAX54815Wiper Settling Time (Note 6)tSMAX548222µs
SPI-COMPATIBLE SERIAL INTERFACE (Figure 3)SCLK FrequencyfSCLK7MHz
SCLK Clock PeriodtCP140ns
SCLK Pulse-Width HightCH60ns
SCLK Pulse-Width LowtCL60ns
CS Fall to SCLK Rise SetuptCSS60ns
SCLK Rise to CS Rise HoldtCSH0ns
DIN to SCLK SetuptDS40ns
DIN Hold after SCLKtDH0ns
SCLK Rise to CS Fall DelaytCS015ns
CS Rise to SCLK Rise HoldtCS160ns
CS Pulse-Width HightCSW150ns
Write NV Register Busy TimetBUSY12ms
UP/DOWN DIGITAL INTERFACE (Figure 8)CS to INC SetuptCI25ns
INC High to U/D ChangetID20ns
U/D to INC SetuptDI25ns
INC Low PeriodtIL25ns
INC High PeriodtIH25ns
INC Inactive to CS InactivetIC50ns
CS Deselect Time (Store)tCPH50ns
INC Cycle TimetCYC50ns
INC Active to CS InactivetIK50ns
Wiper Store CycletWSC12ms
Note 1:100% production tested at TA= +25°C and TA= +85°C. Guaranteed by design to TA= -40°C.
Note 2:The DNL and INL are measured with the device configured as a voltage-divider with H = VDDand L = VSS. The wiper termi-
nal (W) is unloaded and measured with a high-input-impedance voltmeter.
Note 3:The DNL_R and INL_R are measured with D.N.C. unconnected and L = VSS= 0V. For VDD= +5V, the wiper terminal is dri-
ven with a source current of IW= 80µA for the 50kΩdevice and 400µA for the 10kΩdevice. For VDD= +3V, the wiper termi-
nal is driven with a source current of 40µA for the 50kΩdevice and 200µA for the 10kΩdevice.
Note 4:The wiper resistance is measured using the source currents given in Note 3.
Note 5:The device draws higher supply current when the digital inputs are driven with voltages between (VDD- 0.5V) and (VGND+
0.5V). See Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics.
Note 6:Wiper settling test condition uses the voltage-divider configuration with a 10pF load on W. Transition code from 00000 00000
to 01111 01111 and measure the time from CSgoing high to the wiper voltage settling to within 0.5% of its final value.
MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
PotentiometersDNL vs. CODE (MAX5483)
MAX5481 toc01
CODE
DNL (LSB)
VDD = 2.7V
DNL vs. CODE (MAX5483)
MAX5481 toc02
CODE
DNL (LSB)
VDD = 5V
INL vs. CODE (MAX5483)
MAX5481 toc03
INL (LSB)
VDD = 2.7V2563841285126407688961024
CODE
2.0
INL vs. CODE (MAX5483)MAX5481 toc04
INL (LSB)
VDD = 3V2563841285126407688961024
CODE
2.0
INL vs. CODE (MAX5483)MAX5481 toc05
INL (LSB)
VDD = 5V2563841285126407688961024
CODE
DNL vs. CODE (MAX5481)
MAX5481 toc06
CODE
DNL (LSB)
VDD = 2.7V
DNL vs. CODE (MAX5481)
MAX5481 toc07
CODE
DNL (LSB)
VDD = 5V
INL vs. CODE (MAX5481)
MAX5481 toc08
CODE
INL (LSB)
VDD = 2.7V
INL vs. CODE (MAX5481)
MAX5481 toc09
CODE
INL (LSB)
VDD = 5V
Typical Operating Characteristics(VDD= 5.0V, VSS= 0V, TA= +25°C, unless otherwise noted.)
MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
PotentiometersDNL vs. CODE (MAX5484)
MAX5481 toc10
CODE
DNL (LSB)
VDD = 2.7V
DNL vs. CODE (MAX5484)
MAX5481 toc11
CODE
DNL (LSB)
VDD = 5V
INL vs. CODE (MAX5484)
CODE
INL (LSB)
VDD = 2.7V
INL vs. CODE (MAX5484)
MAX5481 toc13
CODE
INL (LSB)
VDD = 5V
DNL vs. CODE (MAX5482)
MAX5481 toc14
CODE
DNL (LSB)
VDD = 2.7V
DNL vs. CODE (MAX5482)
MAX5481 toc15
CODE
DNL (LSB)
VDD = 5V
INL vs. CODE (MAX5482)
MAX5481 toc16
CODE
INL (LSB)
VDD = 2.7V
INL vs. CODE (MAX5482)
MAX5481 toc17
CODE
INL (LSB)
VDD = 5V
WIPER RESISTANCE vs. CODE
(VARIABLE RESISTOR, TA = -40°C)MAX5481 toc182563841285126407688961024
CODE
Typical Operating Characteristics (continued)(VDD= 5.0V, VSS= 0V, TA= +25°C, unless otherwise noted.)
MAX5481–MAX5484
Typical Operating Characteristics (continued)(VDD= 5.0V, VSS= 0V, TA= +25°C, unless otherwise noted.)
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
WIPER RESISTANCE vs. CODE
(VARIABLE RESISTOR, TA = +25°C)MAX5481 toc192563841285126407688961024
CODE
WIPER RESISTANCE vs. CODE
(VARIABLE RESISTOR, TA = +85°C)MAX5481 toc202563841285126407688961024
CODE
W-TO-L RESISTANCE vs. CODE
(MAX5484)MAX5481 toc21
(k2563841285126407688961024
CODE
W-TO-L RESISTANCE vs. CODE
(MAX5483)MAX5481 toc22
(k2563841285126407688961024
CODE
WIPER RESISTANCE vs. WIPER VOLTAGE
(VARIABLE RESISTOR)
MAX5481 toc23
WIPER VOLTAGE (V)
VDD = 5V
CODE = 00 0000
END-TO-END (RHL) % CHANGE
vs. TEMPERATURE (VOLTAGE-DIVIDER)
MAX5481 toc24
TEMPERATURE (°C)
END-TO-END RESISTANCE CHANGE (%)
WIPER-TO-END RESISTANCE (RWL) % CHANGE
vs. TEMPERATURE (VARIABLE RESISTOR)
MAX5481 toc25
TEMPERATURE (°C)
WIPER-TO-END RESISTANCE CHANGE (%)
CODE = 11 1111 1111
STANDBY SUPPLY CURRENT
vs. TEMPERATURE
MAX5481 toc26
TEMPERATURE (°C)
IDD
VDD = 5.25V
DIGITAL SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGEMAX5481 toc27
DIGITAL INPUT VOLTAGE (V)
IDD
10,000
VDD = 5V
MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
Typical Operating Characteristics (continued)(Circuit of Figure 1, TA= +25°C, unless otherwise noted.)
1μs/div
TAP-TO-TAP SWITCHING TRANSIENT
RESPONSE (MAX5481)(AC-COUPLED)
20mV/div
2V/div
MAX5481 toc28
H = VDD, L = GND
CW = 10pF
FROM CODE 01 1111 1111
TO CODE 10 0000 0000
4μs/div
TAP-TO-TAP SWITCHING TRANSIENT
RESPONSE (MAX5482)VW
(AC-COUPLED)
20mV/div
2V/div
MAX5481 toc29
H = VDD, L = GND
CW = 10pF
FROM CODE 01 1111 1111
TO CODE 10 0000 0000
WIPER RESPONSE vs. FREQUENCY
(MAX5481)MAX5481 toc30
FREQUENCY (kHz)
GAIN (dB)
CW = 10pF
CW = 30pF
CODE = 01111 01111
WIPER RESPONSE vs. FREQUENCY
(MAX5482)MAX5481 toc31
FREQUENCY (kHz)
GAIN (dB)
CW = 10pF
CW = 30pF
CODE = 01111 01111
THD+N vs. FREQUENCY
(MAX5481)MAX5481 toc32
FREQUENCY (kHz)
THD+N (%) 10.1
CODE 01111 01111
CW = 10pF
THD+N vs. FREQUENCY
(MAX5482)MAX5481 toc33
THD+N (%) 10.1
CODE 01111 01111
CW = 10pF
RATIOMETRIC TEMPERATURE
COEFFICIENT vs. CODE
MAX5481 toc34
RATIOMETRIC TEMPCO (ppm)
50kΩ
VOLTAGE-DIVIDER
VDD = +3V
TA = -40°C TO +85°C
10kΩ
VARIABLE-RESISTOR TEMPERATURE
COEFFICIENT vs. CODE
MAX5481 toc35
(ppm)2563841285126407688961024
50kΩ
VDD = +3V
TA = -40°C TO +85°C
10kΩ
MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
Pin Description
PIN
TQFNTSSOPNAMEFUNCTION12HHigh Terminal11WWiper Terminal10LLow Terminal
4–7, 157, 8, 9, 13N.C.No Connection. Not internally connected.
8, 1614VSS
Negative Power-Supply Input. For single-supply operation, connect VSS to GND. For dual-
supply operation, -2.5V ≤ VSS ≤ -0.2V as long as (VDD - VSS) ≤ +5.25V. Bypass VSS to GND
with a 0.1µF ceramic capacitor as close to the device as possible.6SPI/UDInterface-Mode Select. Select serial SPI interface when SPI/UD = 1. Select serial up/down
interface when SPI/UD = 0.
Serial SPI Interface Data Input (SPI/UD = 1)5DIN(U/D)Up/Down Control Input (SPI/UD = 0). With DIN(U/D) low, a high-to-low SCLK(INC) transition
decrements the wiper position. With DIN(U/D) high, a high-to-low SCLK(INC) transition
increments the wiper position.
Serial SPI Interface Clock Input (SPI/UD = 1)4SCLK(INC)Wiper-Increment Control Input (SPI/UD = 0). With CS low, the wiper position moves in the
direction determined by the state of DIN(U/D) on a high-to-low transition.3CSActive-Low Digital Input Chip Select2GNDGround1VDDPositive Power-Supply Input (+2.7V ≤ VDD ≤ +5.25V). Bypass VDD to GND with a 0.1µF
ceramic capacitor as close to the device as possible.—EPExposed Pad (TQFN Only). Externally connect EP to VSS or leave unconnected.
(MAX5481/MAX5482 Voltage-Dividers)MAX5481–MAX5484
10-Bit, Nonvolatile, Linear-Taper Digital
Potentiometers
Pin Description (continued)
PIN
TQFNTSSOP
NAMEFUNCTION4–7, 157, 8, 9, 13N.C.No Connection. Not internally connected.12D.N.C.Do Not Connect. Leave unconnected for proper operation.11WWiper Terminal10LLow Terminal
8, 1614VSS
Negative Power-Supply Input. For single-supply operation, connect VSS to GND. For dual-
supply operation, -2.5V ≤ VSS ≤ -0.2V as long as (VDD - VSS) ≤ 5.25V. Bypass VSS to GND
with a 0.1µF ceramic capacitor as close to the device as possible.6SPI/UDInterface-Mode Select. Select serial SPI interface when SPI/UD = 1. Select serial up/down
interface when SPI/UD = 0.
Serial SPI Interface Data Input (SPI/UD = 1)5DIN(U/D)Up/Down Control Input (SPI/UD = 0). With DIN(U/D) low, a high-to-low SCLK(INC) transition
decrements the wiper position. With DIN(U/D) high, a high-to-low SCLK(INC) transition
increments the wiper position.
Serial SPI Interface Clock Input (SPI/UD = 1)4SCLK(INC)Wiper Increment Control Input (SPI/UD = 0). With CS low, the wiper position moves in the
direction determined by the state of DIN(U/D) on a high-to-low transition.3CSActive-Low Digital Input Chip Select2GNDGround1VDDPositive Power-Supply Input (+2.7V ≤ VDD ≤ +5.25V). Bypass VDD to GND with a 0.1µF
ceramic capacitor as close to the device as possible.—EPExposed Pad (TQFN Only). Externally connect EP to VSS or leave unconnected.
(MAX5483/MAX5484 Variable Resistors)MAX5481–MAX5484
