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MAX993EUD , Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O Comparators
MAX993EUD+ ,Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O ComparatorsFeaturesThe MAX985/MAX986/MAX989/MAX990/MAX993/ 11µA Quiescent Supply CurrentMAX994 single/dual/qu ..
MAX993EUD+T ,Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O ComparatorsGeneral Description ________
MAX5413EUD+T-MAX5415EUD+
Dual, 256-Tap, Low-Drift, Digital Potentiometers in 14-Pin TSSOP
General DescriptionThe MAX5413/MAX5414/MAX5415 is a family of dual
linear taper digital potentiometers. Each device has two
3-terminal potentiometers. The MAX5413/MAX5414/
MAX5415 operate from +2.7V to +5.5V single-supply
voltages and use an ultra-low 0.1µA supply current.
These devices also provide glitchless switching
between resistor taps, as well as a convenient power-
on reset (POR) that sets the wiper to the midscale posi-
tion at power-up. Each 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 performs the same function as a discrete potentiome-
ter or variable resistor.
These parts are ideal for applications requiring digitally
controlled resistors. Three resistance values are avail-
able: 10kΩ(MAX5413), 50kΩ(MAX5414), and 100kΩ
(MAX5415). A nominal resistor temperature coefficient
of 35ppm/°C end-to-end and 5ppm/°C ratiometric make
the MAX5413/MAX5414/MAX5415 ideal for applications
requiring low temperature-coefficient variable resistors,
such as adjustable-gain circuit configurations.
The MAX5413/MAX5414/MAX5415 are available in a 14-
pin TSSOP package. Each device is guaranteed over the
extended industrial temperature range (-40°C to +85°C).
ApplicationsMechanical Potentiometer Replacement
Low-Drift Programmable Gain Amplifier (PGA)
Volume Control
LCD Screen Adjustment
Adjustable Voltage Reference
Programmable Filters, Delays, Time Constant
Impedance Matching
Features14-Pin TSSOP Small-Footprint Package256 Tap PositionsUltra-Low 0.1µA Supply Current+2.7V to +5.5V Single-Supply OperationTwo Independent Potentiometers in a PackageLow End-to-End Temperature Coefficient
35ppm/°CLow Ratiometric Temperature Coefficient
5ppm/°CPower-On Reset: Wiper Goes to Midscale
(Position 128)Glitchless Switching Between Resistor Taps3-Wire SPI™-Interface Compatible10kΩ/50kΩ/100kΩResistor Values
MAX5413/MAX5414/MAX5415
Dual, 256-Tap, Low-Drift, Digital Potentiometers
in 14-Pin TSSOPVDDWB
GND
TOP VIEW
MAX5413
MAX5414
MAX5415N.C.
SCLK
DIN
N.C.
N.C.
TSSOP
Pin Configuration
Ordering Information19-1943; Rev 0; 1/01
PARTTEMP. RANGEPIN-PACKAGER (kΩ)
MAX5413EUD-40°C to +85°C14 TSSOP10
MAX5414EUD-40°C to +85°C14 TSSOP50
MAX5415EUD-40°C to +85°C14 TSSOP100
SPI is a trademark of Motorola, Inc.
MAX5413/MAX5414/MAX5415
Dual, 256-Tap, Low-Drift, Digital Potentiometers
in 14-Pin TSSOP
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VDD= +5V, unless otherwise noted. VH= VDD, VL= 0, TA= TMINto TMAX. Typical values are at VDD= +5V, TA= +25°C,
unless otherwise noted.)
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 +6V
DIN, SCLK, CS.........................................................-0.3V to +6V
HX, LX, WXto GND........................................-0.3V to (VDD+0.3)
Maximum Continuous Current into HX, LX, and WX............±1mA
Continuous Power Dissipation (TA= +70°C)
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.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
DC PERFORMANCE (Voltage-Divider Mode)ResolutionN8Bits
Integral Nonlinearity (Notes 1, 2)INL±1/2LSBi ffer enti al N onl i near i ty ( N otes 1, 2) DNL±1/2LSB
End-to-End Resistor TempcoTCR35ppm/°C
Ratiometric Resistor Tempco5ppm/°C
MAX5413-8
MAX5414-1.6Full-Scale Error
MAX54150.8
LSB
MAX5413+8
MAX5414+1.6Zero-Scale Error
MAX5415+0.8
LSB
DC PERFORMANCE (Variable-Resistor Mode)ResolutionN8Bits
VDD = +5V±1LSB
MAX5413±3
MAX5414±1.5Integral Nonlinearity (Notes 1, 3)INL
VDD = +3V
MAX5415±1.5
LSB
VDD = +5VDifferential Nonlinearity
(Notes 1, 3)DNLVDD = +3V±1/2LSB
DC PERFORMANCE (Resistor Characteristics)VDD = +5V275Wiper Resistance (Note 4)RWVDD = +3V550Ω
MAX541350Wiper CapacitanceCWMAX5414/MAX541530pF
MAX54137.51012.5
MAX541437.55062.5End-to-End ResistanceRHL
MAX541575100125
MAX5413/MAX5414/MAX5415
Dual, 256-Tap, Low-Drift, Digital Potentiometers
in 14-Pin TSSOP
ELECTRICAL CHARACTERISTICS (continued)(VDD= +5V, unless otherwise noted. VH= VDD, VL= 0, TA= TMINto TMAX. Typical values are at VDD= +5V, TA= +25°C,
unless otherwise noted.)
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
DIGITAL INPUTSInput High VoltageVIH0.7 x VDDV
Input Low VoltageVIL0.3 x VDDV
Input Leakage Current±1.0µA
Input Capacitance5pF
TIMING CHARACTERISTICS (ANALOG)MAX5413100
MAX5414325Wiper-Settling TimetS
MAX5415650
TIMING CHARACTERISTICS (DIGITAL) (Note 5)Maximum SCLK Frequency10MHz
SCLK Clock PeriodtCP100ns
SCLK Pulse Width HightCH40ns
SCLK Pulse Width LowtCL40ns
CS Fall to SCLK Rise Setup TimetCSS40ns
SCLK Rise to CS Rise Hold TimetCSH0ns
DIN Setup TimetDS40ns
DIN Hold TimetDH0ns
SCLK Rise to CS Fall DelaytCS010ns
CS Rise to SCLK Rise HoldtCS140ns
CS Pulse Width HightCSW100ns
POWER SUPPLIESSupply VoltageVDD2.75.5V
VDD = +5V0.85µASupply CurrentIDDCS = SCLK = DIN = VDD VDD = +2.7V0.1µA
Note 1:Linearity is defined in terms of the HXto LXcode-dependent resistance.
Note 2:The DNL and INL are measured with the potentiometer configured as a voltage-divider with HX= VDDand LX= 0. The wiper
terminal is unloaded and measured with an ideal voltmeter.
Note 3:The DNL and INL are measured with the potentiometer configured as a variable resistor. HXis unconnected and LX= 0. At
VDD= +5V, the wiper terminal is driven with a source current of 400µA for the 10kΩconfiguration, 80µA for the 50kΩconfig-
uration, and 40µA for the 100kΩconfiguration. At VDD= +3V, 200µA/40µA/20µA for 10kΩ/50kΩ/100kΩconfigurations,
respectively.
Note 4:The wiper resistance is the worst value measured by injecting into WX, a current IW= VDD/ RHL.
Note 5:Digital timing is guaranteed by design.
MAX5413/MAX5414/MAX5415
Dual, 256-Tap, Low-Drift, Digital Potentiometers
in 14-Pin TSSOP
Typical Operating Characteristics(VDD= +5.0V, TA = +25°C, unless otherwise noted.)
WIPER VOLTAGE (V)
WIPER RESISTANCE
vs. WIPER VOLTAGE (10kΩ)MAX5413 toc01
WIPER RESISTANCE (VDD = +3V
VDD = +5V
WIPER RESISTANCE
vs. WIPER VOLTAGE (50kΩ)
MAX5413 toc02
WIPER VOLTAGE (V)
WIPER RESISTANCE (VDD = +3V
VDD = +5V
WIPER RESISTANCE
vs. WIPER VOLTAGE (100kΩ)
MAX5413 toc03
WIPER VOLTAGE (V)
WIPER RESISTANCE (VDD = +3V
VDD = +5V
WIPER RESISTANCE
vs. INPUT CODE (10kΩ)
MAX5413 toc04
INPUT CODE (DECIMAL)
W-TO-L RESISTANCE (k
WIPER RESISTANCE
vs. INPUT CODE (50kΩ)
MAX5413 toc05
INPUT CODE (DECIMAL)
W-TO-L RESISTANCE (k
WIPER RESISTANCE
vs. INPUT CODE (100kΩ)
MAX5413 toc06
INPUT CODE (DECIMAL)
W-TO-L RESISTANCE (k
VARIABLE RESISTOR DNL
vs. INPUT CODE (10kΩ)
MAX5413 toc07
INPUT CODE (DECIMAL)
DNL (LSB)
VARIABLE RESISTOR INL
vs. INPUT CODE (10kΩ)
MAX5413 toc08
INPUT CODE (DECIMAL)
INL (LSB)
VARIABLE RESISTOR DNL
vs. INPUT CODE (50kΩ)
MAX5413 toc09
INPUT CODE (DECIMAL)
DNL (LSB)
VDD = +5V
MAX5413/MAX5414/MAX5415
Dual, 256-Tap, Low-Drift, Digital Potentiometers
in 14-Pin TSSOPVARIABLE RESISTOR INL
vs. INPUT CODE (50kΩ)
MAX5413 toc10
INPUT CODE (DECIMAL)
INL (LSB)0.04
MAX5413 toc11
INPUT CODE (DECIMAL)
VARIABLE RESISTOR DNL
vs. INPUT CODE (100kΩ)
DNL (LSB)
MAX5413 toc12
INPUT CODE (DECIMAL)
VARIABLE RESISTOR INL
vs. INPUT CODE (100kΩ)
INL (LSB)
MAX5413 toc13
INPUT CODE (DECIMAL)
VOLTAGE-DIVIDER DNL
vs. INPUT CODE (10kΩ)
DNL (LSB)
MAX5413 toc14
INPUT CODE (DECIMAL)
VOLTAGE-DIVIDER INL
vs. INPUT CODE (10kΩ)
INL (LSB)
MAX5413 toc15
INPUT CODE (DECIMAL)
VOLTAGE-DIVIDER DNL
vs. INPUT CODE (50kΩ)
DNL (LSB)
MAX5413 toc16
INPUT CODE (DECIMAL)
VOLTAGE-DIVIDER INL
vs. INPUT CODE (50kΩ)
INL (LSB)
MAX5413 toc17
INPUT CODE (DECIMAL)
VOLTAGE-DIVIDER DNL
vs. INPUT CODE (100kΩ)
DNL (LSB)
MAX5413 toc18
INPUT CODE (DECIMAL)
VOLTAGE-DIVIDER INL
vs. INPUT CODE (100kΩ)
INL (LSB)
0.15
ypical Operating Characteristics (continued)(VDD= +5.0V, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. LOGIC INPUT VOLTAGE
MAX5413 toc19
INPUT LOGIC VOLTAGE (V)
SUPPLY CURRENT (mA)
VDD = +3V
VDD = +5V
SUPPLY CURRENT vs. TEMPERATURE
MAX5413 toc20
TEMPERATURE (°C)
SUPPLY CURRENT (
VDD = +3V
VDD = +5V
END-TO-END RESISTANCE % CHANGE
vs. TEMPERATURE
MAX5413 toc21
TEMPERATURE (°C)
END-TO-END RESISTANCE % CHANGE
100kΩ
100kΩ
10kΩ
50kΩ
10kΩ
50kΩ
200ns/div
TAP-TO-TAP SWITCHING TRANSIENT
(CODE 127 TO 128)VW-L
10mV/div
MAX5413 toc22
5V/div
MAX5413/MAX5414/MAX5415
Dual, 256-Tap, Low-Drift, Digital Potentiometers
in 14-Pin TSSOPypical Operating Characteristics (continued)(VDD= +5.0V, TA = +25°C, unless otherwise noted.)
