IC Phoenix
 
Home ›  MM63 > MAX5431BEUB,±15V Digitally Programmable Precision Voltage-Dividers for PGAs
MAX5431BEUB Fast Delivery,Good Price
Part Number:
If you need More Quantity or Better Price,Welcom Any inquiry.
We available via phone +865332716050 Email
Partno Mfg Dc Qty AvailableDescript
MAX5431BEUBMAXN/a2avai±15V Digitally Programmable Precision Voltage-Dividers for PGAs


MAX5431BEUB ,±15V Digitally Programmable Precision Voltage-Dividers for PGAsApplicationsOrdering InformationGeneral-Purpose Programmable NoninvertingTEMP PIN- GAINPARTAmplifie ..
MAX5432LETA+T ,32-Tap, Nonvolatile, I²C, Linear, Digital Potentiometersapplications requiring a low-temperature-coefficientvariable resistor such as low-drift, programmab ..
MAX5434LEZT+ ,32-Tap, Nonvolatile, I²C, Linear, Digital PotentiometersApplicationsSOT23Mechanical Potentiometer ReplacementTDFNLow-Drift Programmable-Gain AmplifiersVolu ..
MAX5434LEZT+T ,32-Tap, Nonvolatile, I²C, Linear, Digital PotentiometersFeaturesThe MAX5432–MAX5435 nonvolatile, linear-taper, digi-♦ Tiny 3mm x 3mm 8-Pin TDFN and 6-Pin T ..
MAX5437EUD+ ,±15V, 128-Tap, Low-Drift Digital PotentiometersApplicationsMAX5438EUB -40°C to +85°C 10 µMAX 100LCD Screen Contrast AdjustmentMAX5439EUD -40°C to ..
MAX5438EUB+T ,±15V, 128-Tap, Low-Drift Digital PotentiometersFeaturesThe MAX5436–MAX5439 are 128-tap high-voltage (±5V♦ +10V to +30V Single-Supply Operationto ± ..
MAX9988ETP+T ,+14dBm to +20dBm LO Buffers/Splitters with ±1dB VariationELECTRICAL CHARACTERISTICS—MAX9987(Typical Application Circuit, V = 4.75V to 5.25V, input and outpu ..
MAX998ESA+T ,Single/Dual/Quad, SOT23, Single-Supply, High-Speed, Low-Power ComparatorsFeaturesThe MAX976/MAX978/MAX998 dual/quad/single, high-♦ Single-Supply Operation Down to 2.7Vspeed ..
MAX998EUT+T ,Single/Dual/Quad, SOT23, Single-Supply, High-Speed, Low-Power ComparatorsELECTRICAL CHARACTERISTICS(V = +2.7V to +5.5V, V = 0V, T = -40°C to +85°C, unless otherwise noted. ..
MAX9993ETP+ ,High-Linearity 1700MHz to 2200MHz Down-Conversion Mixer with LO Buffer/SwitchApplicationsOrdering InformationUMTS and 3G Base StationsPART TEMP RANGE PIN-PACKAGEDCS1800 and EDG ..
MAX9993ETP+T ,High-Linearity 1700MHz to 2200MHz Down-Conversion Mixer with LO Buffer/SwitchELECTRICAL CHARACTERISTICS(Typical Operating Circuit, 4.75V < V < 5.75V, -40°C < T < +85°, RF and L ..
MAX9993ETP-T ,High-Linearity 1700MHz to 2200MHz Down- Conversion Mixer with LO Buffer/SwitchApplicationsOrdering InformationUMTS and 3G Base StationsPART TEMP RANGE PIN-PACKAGEDCS1800 and EDG ..


MAX5431BEUB
±15V Digitally Programmable Precision Voltage-Dividers for PGAs
General Description
The MAX5430/MAX5431 are digitally programmable
high-precision resistor arrays for PGAs. The MAX5430/
MAX5431 operate from a single 15V supply or dual
±15V supplies, and consume only 35µA supply current.
These devices are intended for programmable-gain
amplifier (PGA) applications and consist of fixed resis-
tor-dividers. Each device has digitally controlled con-
tacts with four precision noninverting gains of 1, 2, 4,
and 8 with ratio accuracy of 0.025% (MAX5430A/
MAX5431A), 0.09% (MAX5430B/MAX5431B), or 0.5%
(MAX5430C/MAX5431C). The MAX5431 includes an
on-chip matching resistor for op amp input bias-current
compensation.
The MAX5430/MAX5431 are available in space-saving
8-pin SOT23 and 10-pin µMAX®packages, and speci-
fied over the extended temperature range of (-40°C to
+85°C).
Applications

General-Purpose Programmable Noninverting
Amplifier
Programmable Instrumentation Amplifier
Features
Four Noninverting PGA Gain Configurations:= 1, 2, 4, and 8Precision 0.025% Ratio Accuracy On-Chip Matching Resistor for Op Amp Bias-
Current Compensation (MAX5431)
Single-Supply +12V to +15V, or Dual-Supply ±12V
to ±15V Operation
Low 35µA Supply Current CMOS/TTL Logic Compatible 2-Wire Parallel
Interface
Space-Saving 8-Pin SOT23 and 10-Pin µMAX
Packages
+3V Logic Compatibility
MAX5430/MAX5431
±15V Digitally Programmable
Precision Voltage-Dividers for PGAs

GND
MATCH_L
MATCH_H
VDD
MAX5431
μMAX
TOP VIEW
VSS
Pin Configurations
Ordering Information

DECODER
MATCH_H
MATCH_L
MAX5431 ONLYVDDGNDVSS
MAX5430
MAX5431
Functional Diagram

19-2222; Rev 2; 7/05
PARTTEMP
RANGE
PIN-
PACKAGE
GAIN
ACCURACY
MAX5430AEKA
-40°C to +85°C8 SOT230.025%
MAX5430BEKA-40°C to +85°C8 SOT230.09%
MAX5430CEKA-40°C to +85°C8 SOT230.5%
MAX5431AEUB
-40°C to +85°C10 µMAX0.025%
MAX5431BEUB-40°C to +85°C10 µMAX0.09%
MAX5431CEUB-40°C to +85°C10 µMAX0.5%
Pin Configurations continued at end of data sheet.
µMax is a registered trademark of Maxim Integrated Products, Inc.
MAX5430/MAX5431
±15V Digitally Programmable
Precision Voltage-Dividers for PGAs
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(VDD= +15V, VSS= -15V, GND = 0, TA= TMINto TMAX. Typical values are at TA= +25°C, unless otherwise noted.) (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.
Note 1:
All devices are 100% production tested at TA= +25°C. SOT23 packages are guaranteed by design from TA= TMINto TMAX.
Note 2:
Gain accuracy is measured without load at pin W.
VDDto GND............................................................-0.3V to +17V
VSSto GND.............................................................-17V to +0.3V
D0, D1 to GND.........................................................-0.3V to +6V
H, L, W, MATCH_ to GND................(VSS- 0.3V) to (VDD+ 0.3V)
Current Into Any Signal Pin...............................................±50mA
Continuous Power Dissipation (TA= +70°C)
8-Pin SOT23 (derate 8.9mW/°C above +70°C)............714mW
10-Pin µMAX (derate 10.3mW/°C above +70°C).........825mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-60°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETERSYMBOLCONDITIONSMINTYPMAXUNITS
DC PERFORMANCE

MAX543_A0.025
MAX543_B0.09 Divider Ratio Accuracy
(Note 2)VH = +5V, VL = -5V
MAX543_C0.5
Resistance between H and L
(Figure 1)RHL57kΩ
Capacitance at Analog PinsCANALOG2pF
Ratio = 10.5 Matching ResistorRatio = 2, 4, 814kΩ
Ratio = 10.5 Wiper ResistanceRWRatio = 2, 4, 814kΩ
W, H, L, MATCH_H, MATCH _L
Voltage RangeVANALOGVSSVDDV
DIGITAL INPUTS

Input High VoltageVIH2.4V
Input Low VoltageVIL0.8V
Input Leakage CurrentD0, D1 = 5V or GND±1µA
Input CapacitanceCIN5pF
POWER REQUIREMENTS

Negative Supply CurrentISS125µA
Positive Supply CurrentIDD3560µA
Positive Power-Supply VoltageVDD10.815.75V
Negative Power-Supply VoltageVSS-15.750V
DYNAMIC PERFORMANCE

Switching TimetD2W, tH2W0.3µs
MAX5430/MAX5431
±15V Digitally Programmable
Precision Voltage-Dividers for PGAs

TEMPERATURE (°C)
MAX543_A DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 1)
MAX5430 toc01
DIVIDER RATIO ACCURACY (%)
TEMPERATURE (°C)
MAX543_A DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 2)
MAX5430 toc02
DIVIDER RATIO ACCURACY (%)
TEMPERATURE (°C)
MAX543_A DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 4)
MAX5430 toc03
DIVIDER RATIO ACCURACY (%)
TEMPERATURE (°C)
MAX543_A DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 8)
MAX5430 toc04
DIVIDER RATIO ACCURACY (%)
TEMPERATURE (°C)
MAX543_B DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 1)
MAX5430 toc05
DIVIDER RATIO ACCURACY (%)
TEMPERATURE (°C)
MAX543_B DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 2)
MAX5430 toc06
DIVIDER RATIO ACCURACY (%)
MAX543_B DIVIDER RATIO ACCURACY
vs.TEMPERATURE (RATIO = 4)
MAX5430 toc07
DIVIDER RATIO ACCURACY (%)
TEMPERATURE (°C)
TEMPERATURE (°C)
MAX543_B DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 8)
MAX5430 toc08
DIVIDER RATIO ACCURACY (%)
MAX543_A DIVIDER RATIO ACCURACY
vs. POSITIVE SUPPLY (VSS = -15V)
MAX5430 toc09
POSITIVE SUPPLY (V)
DIVIDER RATIO ACCURACY (%)
RATIO 1
RATIO 2
RATIO 8RATIO 4
Typical Operating Characteristics

(VDD= +15V, VSS= -15V or VSS= GND, VH= 5V, VL=-5V, TA= 25°C, unless otherwise noted.) (Note 3)
MAX5430/MAX5431
±15V Digitally Programmable
Precision Voltage-Dividers for PGAsypical Operating Characteristics (continued)

(VDD= +15V, VSS= -15V or VSS= GND, VH= 5V, VL=-5V, TA= 25°C, unless otherwise noted.) (Note 3)
MAX543_B DIVIDER RATIO ACCURACY
vs. POSITIVE SUPPLY (VSS = -15V)
MAX5430 toc10
POSITIVE SUPPLY (V)
DIVIDER RATIO ACCURACY (%)
RATIO 2RATIO 4
RATIO 1RATIO 812131415
MAX543_A DIVIDER RATIO ACCURACY
vs. POSITIVE SUPPLY (VSS = 0V)

MAX5430 toc11
POSITIVE SUPPLY (V)
DIVIDER RATIO ACCURACY (%)
RATIO 2
RATIO 4RATIO 1
RATIO 8
0.010VL = 0
MAX543_B DIVIDER RATIO ACCURACY
vs. POSITIVE SUPPLY (VSS = 0V)
MAX5430 toc12
POSITIVE SUPPLY (V)
DIVIDER RATIO ACCURACY (%)
RATIO 2
RATIO 4
RATIO 1RATIO 8
VL = 0
MAX543_A DIVIDER RATIO ACCURACY
vs. NEGATIVE SUPPLY
MAX5430 toc13
NEGATIVE SUPPLY (V)
DIVIDER RATIO ACCURACY (%)
RATIO 2
RATIO 1
RATIO 8
RATIO 4
VL = 0
SUPPLY CURRENT
vs. TEMPERATURE
MAX5430 toc15
TEMPERATURE (°C)
SUPPLY CURRENT (
D0, D1 = 0V
D0, D1 = 5V
Note 3:
For MAX543_C accuracy Typical Operating Characteristics, refer to MAX543_B accuracy Typical Operating Characteristics.
MAX543_B DIVIDER RATIO ACCURACY
vs. NEGATIVE SUPPLY
MAX5430 toc14
NEGATIVE SUPPLY (V)
DIVIDER RATIO ACCURACY (%)
RATIO 2
RATIO 1RATIO 8
RATIO 4
MAX5430/MAX5431
±15V Digitally Programmable
Precision Voltage-Dividers for PGAs
Pin Description
PIN
MAX5431MAX5430
NAMEFUNCTION
VDDPositive Power SupplyMATCH_HMatching Resistor High TerminalGNDGroundHHigh Terminal of Resistive-DividerLLow Terminal of Resistive-DividerMATCH_LMatching Resistor Low TerminalVSSNegative Power SupplyWWiper Terminal of Resistive-DividerD1Second Bit Digital Input (MSB) (Table 1)1D0First Bit Digital Input (LSB) (Table 1)
Detailed Description

The MAX5430/MAX5431 are digitally programmable pre-
cision resistor arrays. These devices have fixed resistor-
dividers with digitally controlled contacts, providing four
precision noninverting gains of 1, 2, 4, and 8 for PGA
applications (see Functional Diagramand Figure 1). The
MAX5430/MAX5431 achieve ratio accuracies of 0.025%
(MAX5430A/MAX5431A), 0.09% (MAX5430B/MAX5431B),
or 0.5% (MAX5430C/MAX5431C).
The end-to-end resistance from H to L is 57kΩ. The
impedance seen at W is designed to be the same 14kΩ
for gain settings 2, 4, and 8, ensuring excellent op amp
input-resistance balance, regardless of gain setting. In
a gain of 1 configuration, H is internally connected to W
with a typical resistance of 500Ω.
Matching Resistor (MAX5431)

The MAX5431 includes a matching resistor to compen-
sate the offset voltage due to the input bias current of
the op amp.The resistance from MATCH_H to
MATCH_L is a fixed matching resistor, equal to the
resistance seen at W for gains of 2, 4, and 8. In the
gain of 1, an internal switch short circuits MATCH_H
and MATCH_L. This internal switch matches the imped-
ance of the switch between H and W.
Figure 1. Simplified Functional Diagram
RATIO = 2
RATIO = 1
RATIO = 4
RATIO = 8
DIGITAL INPUTSD0GAIN
1248
Table 1. Logic-Control Truth Table
Digital Interface Operation
The MAX5430/MAX5431 feature a simple two-bit paral-
lel programming interface. D1 and D0 program the gain
setting according to the Logic-Control Truth Table(see
Table 1). The digital interface is CMOS/TTL logic com-
patible.
Applications Information
Programmable-Gain Amplifier

The MAX5430/MAX5431 are ideally suited for high-pre-
cision PGA applications. The typical application circuit
of Figure 2 uses the MAX5431 with matching resistor to
compensate for voltage offset due to op amp input bias
currents. Use the MAX5430 with an ultra-low input bias
current op amp (see Figure 3).
Power Supplies and Bypassing

The MAX5430/MAX5431 operate from dual ±15V sup-
plies or a single 15V supply. For dual supplies, bypass
VDDand VSSwith 0.1µF ceramic capacitors to GND.
For single supply, connect VSSto GND and bypass
VDDwith a 0.1µF ceramic capacitor to GND.
Switching Time and Layout Concerns

The switching time of the MAX5430/MAX5431 depends
on the capacitive loading at W. For best performance,
reduce parasitic board capacitance by minimizing the
circuit board trace from W to the op amp inverting input,
and choose an op amp with low input capacitance.
MAX5430/MAX5431
±15V Digitally Programmable
Precision Voltage-Dividers for PGAs

15V
MATCH_L
15V
MATCH_H
VSS
VDD
GNDL
MAX5431
VIN
VOUT
15V
15V
VSS
VDD
GNDL
MAX5430
VIN
VOUT
Figure 2. MAX5431 Typical Application Circuit PGA with Input
IBIASMatching
Figure 3. Programmable-Gain Amplifier Using the MAX5430
SOT23

TOP VIEW
MAX5430
VDDD0
VSSLWGND
Pin Configurations (continued)
Chip Information

TRANSISTOR COUNT: 121
PROCESS: CMOS
ic,good price


TEL:86-533-2716050      FAX:86-533-2716790
   

©2020 IC PHOENIX CO.,LIMITED