MAX5496ETE+ ,10-Bit, Dual, Nonvolatile, Linear-Taper Digital PotentiometersELECTRICAL CHARACTERISTICS(V = +2.7V to +5.25V, V = GND = 0, V = V , V = 0, T = -40°C to +85°C, unl ..
MAX5497ETE+T ,10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometersapplications requir-♦ Single +2.7V to +5.25V Supply Operationing digitally controlled potentiometer ..
MAX5499ETE+ ,10-Bit, Dual, Nonvolatile, Linear-Taper Digital PotentiometersApplicationsGain and Offset Adjustment5mm × 5mm × 0.8mm TQFNLCD Contrast AdjustmentPressure Sensors ..
MAX549ACUA ,+2.5V to +5.5V, Low-Power, Single/Dual, 8-Bit Voltage-Output DACs in レMAX PackageMAX548A/MAX549A/MAX550A19-1206; Rev 0; 3/97+2.5V to +5.5V, Low-Power, Single/Dual,8-Bit Voltage-Out ..
MAX549ACUA+ ,+2.5V to +5.5V, Low-Power, Single/Dual, 8-Bit Voltage-Output DACs in µMAX PackageApplicationsMAX548AC/D 0°C to +70°C Dice*Battery-Powered SystemsMAX548AEPA -40°C to +85°C 8 Plastic ..
MAX549ACUA+T ,+2.5V to +5.5V, Low-Power, Single/Dual, 8-Bit Voltage-Output DACs in µMAX PackageFeaturesThe MAX548A/MAX549A/MAX550A serial, 8-bit voltage-♦ +2.5V to +5.5V Single-Supply Operationo ..
MAZ3043H ,Silicon planar typeFeatures 1•Mini type package (3-pin)3•Allowing to achieve a high-density set2•Sharp rising performa ..
MAZ3051 ,Small-signal deviceElectrical Characteristics T = 25°C aParameter Symbol Conditions Min Typ Max UnitForward voltage V ..
MAZ3051-L ,Silicon planar typeElectrical characteristics within part numbers T = 25°Ca•V = 2.0 V to 8.2 V (I = 5 mA)Z ZTemperatu ..
MAZ3056-L ,Silicon planar typeAbsolute Maximum Ratings T = 25°Ca0.1 to 0.3Parameter Symbol Rating Unit0.4 ± 0.2Average forward c ..
MAZ3068 ,Small-signal deviceElectrical characteristics within part numbers T = 25°Ca• V = 2.0 V to 8.2 V (I = 5 mA)Z ZTemperat ..
MAZ3068-H ,Silicon planar typeelectrical characteristicsR1 Rwithin part numbersI V ··············· Specified value µ AR2 R3*Tempe ..
MAX5494ETE+-MAX5495ETE+-MAX5496ETE+-MAX5497ETE+T-MAX5499ETE+
10-Bit, Dual, Nonvolatile, Linear-Taper Digital Potentiometers
General DescriptionThe MAX5494–MAX5499 10-bit (1024-tap), dual, non-
volatile, linear-taper, programmable voltage-dividers
and variable resistors perform the function of a
mechanical potentiometer, but replace the mechanics
with a 3-wire SPI™-compatible serial interface. The
MAX5494/MAX5495 are dual, 3-terminal, programma-
ble voltage-dividers; the MAX5496/MAX5497 are dual,
2-terminal variable resistors; and the MAX5498/
MAX5499 include one 2-terminal variable resistor and
one 3-terminal programmable voltage-divider.
The MAX5494–MAX5499 feature an internal, nonvolatile,
electrically erasable programmable read-only memory
(EEPROM) that stores the wiper position for initialization
during power-up. The 3-wire SPI-compatible serial inter-
face allows communication at data rates up to 7MHz.
The MAX5494–MAX5499 are ideal for applications requir-
ing digitally controlled potentiometers. End-to-end resis-
tance values of 10kΩand 50kΩare available with a
35ppm/°C end-to-end temperature coefficient. The ratio-
metric temperature coefficient is 5ppm/°C for each chan-
nel, making these devices ideal for applications requiring
low-temperature-coefficient programmable voltage-
dividers such as low-drift, programmable-gain amplifiers.
The MAX5494–MAX5499 operate with either a single
power supply (+2.7V to +5.25V) or dual power supplies
(±2.5V). The devices consume 400µA (max) of supply
current when writing data to the nonvolatile memory
and 1.5µA (max) of standby supply current. The
devices are available in space-saving (5mm x 5mm x
0.8mm), 16-pin TQFN package and are specified over
the extended (-40°C to +85°C) temperature range.
ApplicationsGain and Offset Adjustment
LCD Contrast Adjustment
Pressure Sensors
Low-Drift Programmable-Gain Amplifiers
Mechanical Potentiometer Replacement
Volume Control
FeaturesWiper Position Stored in Nonvolatile Memory and
Recalled Upon Power-Up16-Pin, 5mm x 5mm x 0.8mm TQFN Package35ppm/°C End-to-End Resistance Temperature
Coefficient5ppm/°C Ratiometric Temperature Coefficient10kΩand 50kΩEnd-to-End Resistor Values3-Wire SPI-Compatible Serial InterfaceReliability (TA= +85°C)
50,000 Wiper Store Cycles
50 Years Wiper Data Retention1.5µA (max) Standby CurrentSingle +2.7V to +5.25V Supply OperationDual ±2.5V Supply Operation
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers3411109
SCLK
N.C.
N.C.
DIN
GND
INTERF
ACEL1H1
VDD
N.C.
N.C.
VSS
TOP VIEW
MAX5494
MAX5495
5mm × 5mm × 0.8mm TQFN3411109
SCLK
N.C.
N.C.
DIN
GND
INTERF
ACEL1D.N.C.
D.N.C.
VDD
N.C.
N.C.
VSS
MAX5496
MAX5497
5mm × 5mm × 0.8mm TQFN
PARTTEMP RANGEPIN-
PACKAGEPKG CODE
MAX5494ETE-40°C to +85°C16 TQFN-EP*T1655-2
MAX5495ETE-40°C to +85°C16 TQFN-EP*T1655-2
Pin Configurations
Ordering Information19-3562; Rev 2; 1/06
*EP = Exposed pad.
Ordering Information continued at end of data sheet.
Selector Guide appears at end of data sheet.Pin Configurations continued at end of data sheet.
EVALUATION KIT
AVAILABLE
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VDD= +2.7V to +5.25V, VSS= GND = 0, VH_= VDD, VL_= 0, TA= -40°C to +85°C, unless otherwise noted. Typical values are at
VDD= +5.0V, TA= +25°C.) (Note 1)
Stresses 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
H1, H2, L1, L2, W1, W2 to VSS.........(VSS- 0.3V) to (VDD+ 0.3V)
CS, SCLK, DIN to GND..............................-0.3V to (VDD+ 0.3V)
Maximum Continuous Current into H_, L_, and W_
MAX5494/MAX5496/MAX5498....................................±5.0mA
MAX5495/MAX5497/MAX5499....................................±1.0mA
Maximum Current Into Other Pins.................................±50.0mA
Continuous Power Dissipation (TA= +70°C)
16-Pin TQFN (derate 20.8mW/°C above +70°C)....1666.7mW
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
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
DC PERFORMANCE (MAX5494/MAX5495/MAX5498/MAX5499 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 Temperature
Coefficient5ppm/°C
MAX5494/MAX5498-4-2.50Full-Scale ErrorFSEMAX5495/MAX5499-4-0.750LSB
MAX5494/MAX549803.35Zero-Scale ErrorZSEMAX5495/MAX549901.455LSB
Wiper CapacitanceCW60pF
MAX5494/MAX54987.51012.5End-to-End ResistanceRHLMAX5495/MAX549937.55062.5kΩ
MAX54940.05Channel-to-Channel Division
Ratio MatchingVDD = 3V, midcode: 512MAX54950.15%
MAX5494/MAX5498, W_ at 15 code, H_ and
L_ shorted to VSS, measure resistance from
W_ to H_ (Figures 4 and 5)
Resistance from W_ to L_ and H_
MAX5495/MAX5499, W_ at 15 code, H_ and
L_ shorted to VSS, measure resistance from
W_ to H_ (Figures 4 and 5)
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
ELECTRICAL CHARACTERISTICS (continued)(VDD= +2.7V to +5.25V, VSS= GND = 0, VH_= VDD, VL_= 0, TA= -40°C to +85°C, unless otherwise noted. Typical values are at
VDD= +5.0V, TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
DC PERFORMANCE (MAX5496–MAX5499 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
Wiper ResistanceRWVDD ≥ 3V (Note 4)50Ω
Wiper CapacitanceCWR60pF
MAX5496/MAX54987.51012.5Full-Scale Wiper-to-End
ResistanceRW-LMAX5497/MAX549937.55062.5kΩ
MAX5494/MAX549870Zero-Scale Resistor ErrorRZCode = 0MAX5495/MAX5499110Ω
MAX5496/MAX5498,
Code >1280.1
Two-Channel Resistance
MatchingVDD = 3V to 5.25V
MAX5497/MAX5499,
Code >2000.15
DIGITAL INPUTS (CS, SCLK, DIN) (Note 5)VDD = 3.6V to 5.25V2.4
Single-supply
operation
VDD = 2.7V to 3.6V0.7 x
VDDInput High VoltageVIH
Dual-supply
operation
With respect to
GND, VDD = 2.5V,
VSS = -2.5V
Single-supply
operationVDD = 2.7V to 5.25V0.8
Input Low VoltageVIL
Dual-supply
operation
With respect to
GND, VDD = 2.5V,
VSS = -2.5V
Input Leakage CurrentIIN±1µA
Input CapacitanceCIN5pF
DYNAMIC CHARACTERISTICSMAX5494/MAX5498250
Wiper -3dB BandwidthBW
Wiper at code 495
(01111 01111), 10pF
load at wiperMAX5495/MAX549950
kHz
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
ELECTRICAL CHARACTERISTICS (continued)(VDD= +2.7V to +5.25V, VSS= GND = 0, VH_= VDD, VL_= 0, TA= -40°C to +85°C, unless otherwise noted. Typical values are at
VDD= +5.0V, TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITSMAX5494/MAX5498; VDD = 3V; wiper at
code 495; 10kHz, 1VRMS signal is applied
at H_; 10pF load at wiper
Total Harmonic DistortionTHD
MAX5495/MAX5499; VDD = 3V; wiper at
code 495; 10kHz, 1VRMS signal is applied
at H_; 10pF load at wiper
Analog Crosstalk
CH2 = 11111 11111, CH1 = 01111 01111,
CW_ = 10pF, VH1 = VDD = +2.5V,
VL1 = VSS = -2.5V, measure VW1 with
VW2 = 5VP-P at f = 1kHz
-93dB
NONVOLATILE MEMORY RELIABILITYData RetentionTA = +85°C50Years
TA = +25°C200,000EnduranceTA = +85°C50,000Stores
POWER SUPPLIESSingle-Supply VoltageVDDVSS = GND = 02.705.25V
VDDGND = 02.505.25Dual-Supply VoltageVSS(VDD - VSS) ≤ 5.25V-2.5-0.2V
Average Programming CurrentIPGDuring nonvolatile write only;
digital inputs = VDD or GND220400µA
Peak Programming CurrentDuring nonvolatile write only;
digital inputs = VDD or GND4mA
Standby CurrentIDDDigital inputs = VDD or GND, TA = +25°C0.61.5µA
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
TIMING CHARACTERISTICS(VDD= +2.7V to +5.25V, VSS= GND = 0, VH_= VDD, VL_= 0, TA= -40°C to +85°C, unless otherwise noted. Typical values are at
VDD= +5.0V, TA= +25°C.) (Note 1)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
ANALOG SECTIONMAX5494/MAX54985Wiper Settling Time (Note 6)tSMAX5495/MAX549922µs
SPI-COMPATIBLE SERIAL INTERFACE (Figure 6)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
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 for the voltage-divider with H_ = VDDand L_ = VSS. The wiper terminal (W_) is unloaded
and measured with a high-input-impedance voltmeter.
Note 3:The DNL and INL are measured with L_ = VSS= 0. For VDD= 5V, the wiper terminal is driven with a current source of IW=
80µA for the 50kΩdevice and IW= 400µA for the 10kΩdevice. For VDD= 3V, the wiper terminal is driven with a current
source of IW= 40µA for the 50kΩdevice and IW= 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 (GND +
0.5V). See the Supply Current vs. Digital Input Voltage graph in the Typical Operating Characteristics.
Note 6:Wiper settling test condition uses the voltage-divider with a 10pF load on W_. Transition code from 0 to 495 and measure
the time from CSgoing high to the wiper voltage settling to within 0.5% of its final value.
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
Typical Operating Characteristics(VDD= +5.0V, VSS= 0, TA= +25°C, unless otherwise noted.)
DIFFERENTIAL NONLINEARITY
vs. CODE (VARIABLE RESISTOR)MAX5494 toc01
CODE
DNL (LSB)
VDD = 3V
INTEGRAL NONLINEARITY
vs. CODE (VARIABLE RESISTOR)MAX5494 toc02
CODE
INL (LSB)
VDD = 3V
MAXIMUM DIFFERENTIAL NONLINEARITY
vs. SUPPLY VOLTAGE (VARIABLE RESISTOR)MAX5494 toc03
VDD (V)
DNL (LSB)
MAXIMUM INTEGRAL NONLINEARITY
vs. SUPPLY VOLTAGE (VARIABLE RESISTOR)
MAX5494 toc04
VDD (V)
INL (LSB)
DIFFERENTIAL NONLINEARITY
vs. CODE (VOLTAGE-DIVIDER)
MAX5494 toc05
CODE
DNL (LSB)
VDD = 3V
INTEGRAL NONLINEARITY
vs. CODE (VOLTAGE-DIVIDER)MAX5494 toc06
CODE
INL (LSB)
VDD = 3V
WIPER RESISTANCEvs. CODE
(VARIABLE RESISTOR) MAX5494 toc07
END-TO-END RESISTANCE
vs. CODE (MAX5497/MAX5499)
MAX5494 toc08
(k
END-TO-END RESISTANCEvs. CODE
(MAX5496/MAX5498) MAX5494 toc09
(k
01024
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometersypical Operating Characteristics (continued)(VDD= +5.0V, VSS= 0, TA= +25°C, unless otherwise noted.)
WIPER RESISTANCE vs. WIPER VOLTAGE
(VARIABLE RESISTOR)MAX5494 toc10
WIPER VOLTAGE (V)321
CODE IS 00 0000 0000VDD = 5V
END-TO-END RESISTANCE (RHL)
% CHANGE vs. TEMPERATURE
(VOLTAGE-DIVIDER) MAX5494 toc11
TEMPERATURE (°C)
END-TO-END RESISTANCE CHANGE (%)3510-15
WIPER-TO-END RESISTANCE (RWL)
% CHANGE vs. TEMPERATURE
(VARIABLE RESISTOR)
MAX5494 toc12
TEMPERATURE (°C)
WIPER-TO-END RESISTANCE CHANGE (%)3510-15
CODE IS 11 1111 1111
STANDBY SUPPLY CURRENT
vs. TEMPERATUREMAX5494 toc13
TEMPERATURE (°C)
IDD3510-15
VDD = 5.25V
DIGITAL SUPPLY CURRENT
vs. DIGITAL INPUT VOLTAGEMAX5494 toc14
DIGITAL INPUT VOLTAGE (V)
IDD321
10,000
VDD = 5V
RATIOMETRIC TEMPERATURE
COEFFICIENT vs. CODEMAX5494 toc15
CODE
RATIOMETRIC TEMPCO (ppm/
°C)
VOLTAGE-DIVIDER
VDD = 3V
TA = -40°C TO +85°C
10kΩ50kΩ
VARIABLE RESISTOR TEMPERATURE
COEFFICIENT vs. CODEMAX5494 toc16
CODE
(ppm/
VDD = 3V
TA = -40°C TO +85°C
10kΩ
50kΩ
TAP-TO-TAP SWITCHING TRANSIENT
(MAX5494/MAX5498)MAX5494 toc17
VW_
20mV/div
1µs/div
2V/div
H_ = VDD
L_ = GND
FROM CODE 01111 11111
TO CODE 10000 00000
CW_ = 10pF
TAP-TO-TAP SWITCHING TRANSIENT
(MAX5495/MAX5499)MAX5494 toc18
VW_
20mV/div
4µs/div
H_ = VDD
L_ = GND
FROM CODE 01111 11111
TO CODE 10000 00000
CW_ = 10pF
2V/div
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometersypical Operating Characteristics (continued)(VDD= +5.0V, VSS= 0, TA= +25°C, unless otherwise noted.)
CROSSTALKMAX5494 toc19
VW1
20mV/div
400ns/div
VW2
2V/div
VH2 = VDD
VL2 = VL1 = VH1 = GND
CW_ = 10pF
CROSSTALK vs. FREQUENCYMAX5494 toc20
FREQUENCY (kHz)
CROSSTALK (dB)10.1
CW_ = 10pF
CODE = 01111 01111
MAX5494/MAX5498
MAX5495/MAX5499
THD+N vs. FREQUENCY
(MAX5494/MAX5498)MAX5494 toc21
FREQUENCY (kHz)
THD+N (%)10.1
CW_ = 10pF
CODE = 01111 01111
THD+N vs. FREQUENCY
(MAX5495/MAX5499)MAX5494 toc22
FREQUENCY (kHz)
THD+N (%)10.1
CW_ = 10pF
CODE = 01111 01111
WIPER RESPONSE vs. FREQUENCY
(MAX5494/MAX5498)MAX5494 toc23
FREQUENCY (kHz)
GAIN (dB)
CODE = 01111 01111
CW_ = 10pF
CW_ = 30pF
WIPER RESPONSE vs. FREQUENCY
(MAX5495/MAX5499)MAX5494 toc24
FREQUENCY (kHz)
GAIN (dB)
CODE = 01111 01111
CW_ = 10pF
CW_ = 30pF
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
Pin Descriptions
PIN
MAX5494/
MAX5495
MAX5496/
MAX5497
MAX5498/
MAX5499
NAMEFUNCTION1CSActive-Low Chip-Select Input. Drive CS low to enable the serial interface. Drive
CS high to disable the serial interface and put the device in standby mode.22W2Wiper Terminal 233L2Low Terminal 2——H2High Terminal 25VDDPositive Power-Supply Input. 2.7V ≤ VDD ≤ 5.25V. Bypass with a 0.1µF
capacitor from VDD to GND as close to the device as possible
6, 7,14,156, 7,14,156, 7,14,15N.C.No Connection. Not internally connected.8VSS
Negative Power-Supply Input.
Single-supply operation: VSS = GND = 0.
Dual-supply operation: -2.5V ≤ VSS ≤ -0.2V (VSS can vary as long as
(VDD - VSS) ≤ 5.25V).
Bypass with a 0.1µF capacitor from VSS to GND as close to the device
as possible.—9H1High Terminal 11010L1Low Terminal 11111W1Wiper Terminal 11212GNDGround1313DINSerial-Data Input. The data at DIN synchronously loads into the serial shift
register on each SCLK rising edge.1616SCLKSerial-Clock Input . SCLK clocks in the data when CS is low.4, 94D.N.CDo Not Connect. Leave unconnected for proper operation.EPEPExposed
Pad
Exposed Pad. Externally connect EP to VSS to provide a low thermal resistance
path from the IC junction to the PC board or leave unconnected.
MAX5494–MAX5499
10-Bit, Dual, Nonvolatile, Linear-Taper
Digital Potentiometers
Functional DiagramsMAX5494
MAX5495
POR
10-BIT
LATCH2 x 10
BIT
NVM
SCLK
DIN
DECODER
TAPS
VDD
GND
VSS
SPI
INTERFACE
DECODER
10-BIT
LATCH
NOTE: THE PROGRAMMABLE VOLTAGE-DIVIDER IS NOT INTENDED FOR CURRENT TO FLOW THROUGH THE WIPER.
NOTE: SEE THE MAX5494/MAX5495/MAX5498/MAX5499 PROGRAMMABLE VOLTAGE-DIVIDERS SECTION.TAPS
Figure 1. MAX5494/MAX5495 Functional Diagram
