MAX5417META ,256-Tap, Nonvolatile, I2C-Interface, Digital PotentiometersApplicationsMechanical Potentiometer Replacement2I C is a trademark of Phillips Corp.2Purchase of I ..
MAX5418NETA+T ,256-Tap, Nonvolatile, I²C-Interface, Digital PotentiometersApplicationsSCL INTERFACE8-BITMAX5418NVMechanical Potentiometer ReplacementMAX5419AMEMORY0Low-Drift ..
MAX541ACSA ,+5V, Serial-Input, Voltage-Output, 16-Bit DACsapplications requiring isola- INLPART TEMP. RANGE PIN-PACKAGE(LSB)tion. A power-on reset circuit cl ..
MAX541ACSA+ ,+5V, Serial-Input, Voltage-Output 16-Bit DACsELECTRICAL CHARACTERISTICS(V = +5V ±5%, V = +2.5V, AGND = DGND = 0, T = T to T , unless otherwise n ..
MAX541ACSA+T ,+5V, Serial-Input, Voltage-Output 16-Bit DACsMAX541/MAX54219-1082; Rev 2; 12/99+5V, Serial-Input, Voltage-Output, 16-Bit DACs
MAX541AEPA ,+5V, Serial-Input, Voltage-Output, 16-Bit DACsELECTRICAL CHARACTERISTICS(V = +5V ±5%, V = +2.5V, AGND = DGND = 0, T = T to T , unless otherwise n ..
MAX993EUD+T ,Micropower, Low-Voltage, UCSP/SC70, Rail-to-Rail I/O ComparatorsGeneral Description ________
MAX9940AXK+T ,Signal-Line Overvoltage Protector for Low-Voltage DevicesFeaturesThe MAX9940 signal-line overvoltage protector for low-♦ 28V Protection on EXTvoltage digita ..
MAX9943AUA+T ,High-Voltage, Precision, Low-Power Op AmpsFeaturesThe MAX9943/MAX9944 is a family of high-voltage ♦ Wide 6V to 38V Supply Rangeamplifiers tha ..
MAX9944ASA+ ,High-Voltage, Precision, Low-Power Op AmpsELECTRICAL CHARACTERISTICS(V = 15V, V = -15V, V = 0V, R = 10kΩ to GND, V = 0V, T = -40°C to +125°C. ..
MAX9944ASA+ ,High-Voltage, Precision, Low-Power Op AmpsApplicationsPIN- TOPPART TEMP RANGESensor InterfacesPACKAGE MARKLoop-Powered SystemsMAX9943AUA+ -40 ..
MAX9945ATT+T ,38V, Low-Noise, MOS-Input, Low-Power Op AmpApplications Ordering InformationMedical Pulse OximetryPIN- TOPPART TEMP RANGEPACKAGE MARKPhotodiod ..
MAX5417META
256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers
General DescriptionThe MAX5417/MAX5418/MAX5419 nonvolatile, linear-
taper, digital potentiometers perform the function of a
mechanical potentiometer, but replace the mechanics
with a simple 2-wire digital interface, allowing communi-
cation with multiple devices. Each device performs the
same function as a discrete potentiometer or variable
resistor and has 256 tap points.
The devices feature an internal, nonvolatile EEPROM
used to store the wiper position for initialization during
power-up. The fast-mode I2C™-compatible serial inter-
face allows communication at data rates up to 400kbps,
minimizing board space and reducing interconnection
complexity in many applications. Each device is available
with one of four factory-preset addresses (see the
Selector Guide) and features an address input for a total
of eight unique address combinations.
The MAX5417/MAX5418/MAX5419 provide three nomi-
nal resistance values: 50kΩ(MAX5417), 100kΩ
(MAX5418), or 200kΩ(MAX5419). The nominal resistor
temperature coefficient is 35ppm/°C end-to-end, and
only 5ppm/°C ratiometric. This makes the devices ideal
for applications requiring a low-temperature-coefficient
variable resistor, such as low-drift, programmable gain-
amplifier circuit configurations.
The MAX5417/MAX5418/MAX5419 are available in a
3mm x 3mm 8-pin TDFN package, and are specified
over the extended -40°C to +85°C temperature range.
ApplicationsMechanical Potentiometer Replacement
Low-Drift Programmable-Gain Amplifiers
Volume Control
Liquid-Crystal Display (LCD) Contrast Control
FeaturesPower-On Recall of Wiper Position from
Nonvolatile MemoryTiny 3mm x 3mm 8-Pin TDFN Package35ppm/°C End-to-End Resistance Temperature
Coefficient5ppm/°C Ratiometric Temperature Coefficient50kΩ/100kΩ/200kΩResistor ValuesFast I2C-Compatible Serial Interface500nA (typ) Static Supply CurrentSingle-Supply Operation: +2.7V to +5.25V256 Tap Positions±0.5 LSB DNL in Voltage-Divider Mode±0.5 LSB INL in Voltage-Divider Mode
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
Ordering Information/Selector Guide
Functional Diagram19-3185; Rev 2; 8/04
Pin Configuration appears at end of data sheet.I2C is a trademark of Phillips Corp.
Purchase of I2C components from Maxim Integrated Products,
Inc. or one of its sublicensed Associated Companies, conveys
a license under the Philips I2C Patent Rights to use these com-
ponents in an I2C system, provided that the system conforms
to the I2C Standard Specification as defined by Philips.
*Future product—contact factory for availability.
**Exposed pad.
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICSStresses 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
All Other Pins to GND.................................-0.3V to (VDD+ 0.3V)
Maximum Continuous Current into H, L, and W
MAX5417......................................................................±1.3mA
MAX5418......................................................................±0.6mA
MAX5419......................................................................±0.3mA
Continuous Power Dissipation (TA= +70°C)
8-Pin TDFN (derate 24.4mW/°C above +70°C).........1951mW
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
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
ELECTRICAL CHARACTERISTICS (continued)(VDD= +2.7V to +5.25V, H = VDD, L = GND, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VDD= +5V, TA= +25°C.)
TIMING CHARACTERISTICS(VDD= +2.7V to +5.25V, H = VDD, L = GND, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VDD= +5V, TA=
+25°C. See Figures 1 and 2.) (Note 7)
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
Note 1:The DNL and INL are measured with the potentiometer configured as a voltage-divider with H = VDDand L = GND. The
wiper terminal is unloaded and measured with a high-input-impedance voltmeter.
Note 2:The DNL and INL are measured with the potentiometer configured as a variable resistor. H is unconnected and L = GND.
For the 5V condition, the wiper terminal is driven with a source current of 80µA for the 50kΩconfiguration, 40µA for the
100kΩconfiguration, and 20µA for the 200kΩconfiguration. For the 3V condition, the wiper terminal is driven with a source
current of 40µA for the 50kΩconfiguration, 20µA for the 100kΩconfiguration, and 10µA for the 200kΩconfiguration.
Note 3:The wiper resistance is measured using the source currents given in Note 2. For operation to VDD= 2.7V, see Wiper
Resistance vs. Temperature in the Typical Operating Characteristics.
Note 4:The device draws higher supply current when the digital inputs are driven with voltages between (VDD- 0.5V) and (GND +
0.5V). See Supply Current vs. Digital Input Voltage in the Typical Operating Characteristics.
Note 5:Wiper at midscale with a 10pF load (DC measurement). L = GND; an AC source is applied to H; and the W output is mea-
sured. A 3dB bandwidth occurs when the AC W/H value is 3dB lower than the DC W/H value.
Note 6:The programming current operates only during power-up and NV writes.
Note 7:SCL clock period includes rise and fall times tRand tF. All digital input signals are specified with tR= tF= 2ns and timed
from a voltage level of (VIL+ VIH) / 2.
Note 8:Wiper settling time is the worst-case 0% to 50% rise time measured between consecutive wiper positions. H = VDD,
L = GND, and the wiper terminal is unloaded and measured with a 10pF oscilloscope probe (see the Typical Operating
Characteristicsfor the tap-to-tap switching transient).
Note 9:An appropriate bus pullup resistance must be selected depending on board capacitance. Refer to the document linked to
this web address: www.semiconductors.philips.com/acrobat/literature/9398/39340011.pdf.
Note 10:The idle time begins from the initiation of the stop pulse.
TIMING CHARACTERISTICS (continued)(VDD= +2.7V to +5.25V, H = VDD, L = GND, TA= -40°C to +85°C, unless otherwise noted. Typical values are at VDD= +5V, TA=
+25°C. See Figures 1 and 2.) (Note 7)
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
Typical Operating Characteristics(VDD= +5V, TA= +25°C, unless otherwise noted.)
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometersypical Operating Characteristics (continued)(VDD= +5V, TA= +25°C, unless otherwise noted.)
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
Typical Operating Characteristics (continued)(VDD= +5V, TA= +25°C, unless otherwise noted.)
MAX5417/MAX5418/MAX5419
256-Tap, Nonvolatile, I2C-Interface,
Digital Potentiometers
Pin Description
Detailed DescriptionThe MAX5417/MAX5418/MAX5419 contain a resistor
array with 255 resistive elements. The MAX5417 has a
total end-to-end resistance of 50kΩ, the MAX5418 has
an end-to-end resistance of 100kΩ, and the MAX5419
has an end-to-end resistance of 200kΩ. The
MAX5417/MAX5418/MAX5419 allow access to the high,
low, and wiper terminals for a standard voltage-divider
configuration. H, L, and W can be connected in any
desired configuration as long as their voltages fall
between GND and VDD.
A simple 2-wire I2C-compatible serial interface moves
the wiper among the 256 tap points. A nonvolatile mem-
ory stores the wiper position and recalls the stored wiper
position in the nonvolatile memory upon power-up. The
nonvolatile memory is guaranteed for 50 years for wiper
data retention and up to 200,000 wiper store cycles.
Figure 1. I2C Serial-Interface Timing Diagram
