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MAX5430BEKA+T

P1-P3P4-P6P7-P7
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:
A
V
= 1, 2, 4, and 8
♦ Precision 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
________________________________________________________________ Maxim Integrated Products 1
1
2
3
4
5
10
9
8
7
6
GND
MATCH_L
MATCH_H
V
DD
MAX5431
µMAX
TOP VIEW
H
W
D0
D1
V
SS
L
Pin Configurations
Ordering Information
DECODER
MATCH_H
MATCH_L
MAX5431 ONLY
H
V
DD
W
L
GND
V
SS
MAX5430
MAX5431
D0
D1
Functional Diagram
19-2222; Rev 2; 7/05
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART
TEMP
RANGE
PIN-
PACKAGE
GAIN
ACCURACY
MAX5430AEKA
-40°C to +85°C
8 SOT23 0.025%
MAX5430BEKA
-40°C to +85°C
8 SOT23 0.09%
MAX5430CEKA
-40°C to +85°C
8 SOT23 0.5%
MAX5431AEUB
-40°C to +85°C 10 µMAX
0.025%
MAX5431BEUB
-40°C to +85°C 10 µMAX
0.09%
MAX5431CEUB
-40°C to +85°C 10 µMAX
0.5%
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
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +15V, V
SS
= -15V, GND = 0, T
A
= T
MIN
to T
MAX
. Typical values are at T
A
= +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 T
A
= +25°C. SOT23 packages are guaranteed by design from T
A
= T
MIN
to T
MAX.
Note 2: Gain accuracy is measured without load at pin W.
V
DD
to GND............................................................-0.3V to +17V
V
SS
to GND.............................................................-17V to +0.3V
D0, D1 to GND .........................................................-0.3V to +6V
H, L, W, MATCH_ to GND ................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
Current Into Any Signal Pin...............................................±50mA
Continuous Power Dissipation (T
A
= +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
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC PERFORMANCE
MAX543_A
0.025
MAX543_B
0.09
Divider Ratio Accuracy
(Note 2)
V
H
= +5V, V
L
= -5V
MAX543_C 0.5
%
Resistance between H and L
(Figure 1)
R
HL
57 kΩ
Capacitance at Analog Pins
C
ANALOG
2pF
Ratio = 1 0.5
Matching Resistor
Ratio = 2, 4, 8 14
kΩ
Ratio = 1 0.5
Wiper Resistance R
W
Ratio = 2, 4, 8 14
kΩ
W, H, L, MATCH_H, MATCH _L
Voltage Range
V
ANALOG
V
SS
V
DD
V
DIGITAL INPUTS
Input High Voltage V
IH
2.4 V
Input Low Voltage V
IL
0.8 V
Input Leakage Current D0, D1 = 5V or GND ±1 µA
Input Capacitance C
IN
5pF
POWER REQUIREMENTS
Negative Supply Current I
SS
125µA
Positive Supply Current I
DD
35 60 µA
Positive Power-Supply Voltage V
DD
10.8 15.75
V
Negative Power-Supply Voltage
V
SS
-15.75
0V
DYNAMIC PERFORMANCE
Switching Time
t
D2W
t
H2W
0.3 µs
MAX5430/MAX5431
±15V Digitally Programmable
Precision Voltage-Dividers for PGAs
_______________________________________________________________________________________ 3
-0.0020
-0.0015
-0.0005
-0.0010
0
0.0005
0.0015
0.0020
0.0010
-40 -10 5 20
TEMPERATURE (°C)
-25 35 506580
MAX543_A DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 1)
MAX5430 toc01
DIVIDER RATIO ACCURACY (%)
-0.010
-0.006
-0.008
-0.002
-0.004
0.002
0
0.004
0.008
0.010
0.006
-40 -10 5 20
TEMPERATURE (°C)
-25 35 50 65 80
MAX543_A DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 2)
MAX5430 toc02
DIVIDER RATIO ACCURACY (%)
-0.010
-0.006
-0.008
-0.002
-0.004
0.002
0
0.004
0.008
0.006
0.010
-40
-10 5 20
TEMPERATURE (°C)
-25 35
50
65 80
MAX543_A DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 4)
MAX5430 toc03
DIVIDER RATIO ACCURACY (%)
-0.010
-0.006
-0.008
-0.002
-0.004
0.002
0
0.004
0.008
0.006
0.010
-40 -10 5 20
TEMPERATURE (°C)
-25 35 506580
MAX543_A DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 8)
MAX5430 toc04
DIVIDER RATIO ACCURACY (%)
-0.0020
-0.0015
-0.0005
-0.0010
0.0005
0
0.0010
0.0015
0.0020
-40
-10 5 20
TEMPERATURE (°C)
-25 35
50
65 80
MAX543_B DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 1)
MAX5430 toc05
DIVIDER RATIO ACCURACY (%)
-0.020
-0.015
-0.005
-0.010
0
0.005
0.015
0.010
0.020
-40 -10 5 20
TEMPERATURE (°C)
-25 35 506580
MAX543_B DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 2)
MAX5430 toc06
DIVIDER RATIO ACCURACY (%)
-0.010
-0.006
-0.008
-0.004
0
-0.002
0.010
0.008
0.006
0.004
0.002
-40 -10 5 20-25 35 506580
MAX543_B DIVIDER RATIO ACCURACY
vs.TEMPERATURE (RATIO = 4)
MAX5430 toc07
DIVIDER RATIO ACCURACY (%)
TEMPERATURE (°C)
-0.010
-0.006
-0.008
-0.002
-0.004
0.002
0
0.004
0.008
0.006
0.010
-40 -10 5 20
TEMPERATURE (°C)
-25 35 506580
MAX543_B DIVIDER RATIO ACCURACY
vs. TEMPERATURE (RATIO = 8)
MAX5430 toc08
DIVIDER RATIO ACCURACY (%)
-0.010
-0.006
-0.008
-0.004
0
0.004
0.006
0.008
0.010
11 12 13 14 15
MAX543_A DIVIDER RATIO ACCURACY
vs. POSITIVE SUPPLY (V
SS
= -15V)
MAX5430 toc09
POSITIVE SUPPLY (V)
DIVIDER RATIO ACCURACY (%)
RATIO 1
-0.002
0.002
RATIO 2
RATIO 8
RATIO 4
Typical Operating Characteristics
(V
DD
= +15V, V
SS
= -15V or V
SS
= GND, V
H
= 5V, V
L
=-5V, T
A
= 25°C, unless otherwise noted.) (Note 3)
P1-P3P4-P6P7-P7

MAX5430BEKA+T

Mfr. #:
Buy MAX5430BEKA+T
Manufacturer:
Maxim Integrated
Description:
Digital Potentiometer ICs Precision Voltage Divider for PGAs
Lifecycle:
New from this manufacturer.
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