MAX15500_11 Datasheet, PDF (1/28 Pages) Maxim Integrated Products – Industrial Analog Current/ Voltage-Output Conditioners

19-4602; Rev 1; 2/11
EVAALVUAAILTAIOBNLEKIT
Industrial Analog Current/
Voltage-Output Conditioners
General Description
The MAX15500/MAX15501 analog output conditioners
provide a programmable current up to Q24mA, or a volt-
age up to Q12V proportional to a control voltage signal.
The control voltage is typically supplied by an external
DAC with an output voltage range of 0 to 4.096V for the
MAX15500 and 0 to 2.5V for the MAX15501. The output
current and voltage are selectable as either unipolar or
bipolar. In the unipolar configuration, a control voltage
of 5% full-scale (FS) produces a nominal output of 0A or
0V to achieve underrange capability. A control voltage
of 100%FS produces one of two programmable levels
(105%FS or 120%FS) to achieve overrange capability.
The outputs of the MAX15500/MAX15501 are protected
against overcurrent conditions and a short to ground or
supply voltages up to Q35V. The devices also monitor for
overtemperature and supply brownout conditions. The
supply brownout threshold is programmable.
The MAX15500/MAX15501 are programmed through an
SPIK interface capable of daisy-chained operation. The
MAX15500/MAX15501 provide extensive error reporting
through the SPI interface and an additional open-drain
interrupt output. The devices include an analog output to
monitor load conditions.
The MAX15500/MAX15501 operate over the -40NC to
+105NC temperature range. The devices are available in
a 32-pin, 5mm x 5mm TQFN package.
Applications
Programmable Logic Controllers (PLCs)
Distributed I/Os
Embedded Systems
Industrial Control and Automation
Simplified Block Diagram
SCLK
DIN
DOUT
CS1
CS2
READY
AIN
ERROR
MON
REFIN
DVDD AVDD
AVDDO
SPI
INTERFACE
ERROR
HANDLING
BIDIRECTIONAL
CURRENT
DRIVER
BIDIRECTIONAL
VOLTAGE
DRIVER
MAX15500
MAX15501
ERROR
HANDLING
OVER-
CURRENT
PROTECTION
SENSERN
SENSERP
COMP
OUT
SENSEVP
SENSEVN
Features
S Supply Voltage Up to Q32.5V
S Output Protected Up to Q35V
S Programmable Output (Plus Overrange)
±10V
0 to 10V
0 to 5V
±20mA
0 to 20mA
4 to 20mA
S Current Output Drives 0 to 1kI
S Voltage Output Drives Loads Down to 1kI
S HART Compliant
S 2ppm Gain Error Drift Over Temperature
S SPI Interface, with Daisy-Chain Capability
S Supports +4.096V (MAX15500) or +2.5V
(MAX15501) Full-Scale Input Signals
S Extensive Error Reporting
Short-Circuit and Overcurrent Protection
Open-Circuit Detection
Brownout Detection
Overtemperature Protection
S Fast, 40µs Settling Time
Ordering Information
PART
PIN-PACKAGE
REFERENCE
MAX15500GTJ+ 32 TQFN-EP*
+4.096V
MAX15501GTJ+ 32 TQFN-EP*
+2.5V
Note: All devices are specified over the -40NC to +105NC oper-
ating temperature range.
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
SPI is a trademark of Motorola, Inc.
Pin Configuration
TOP VIEW
24 23 22 21 20 19 18 17
SENSEVP 25
16 N.C.
AVDD 26
15 AGND
AGND 27
14 AIN
AVSS 28
MON 29
MAX15500
MAX15501
13 REFIN
12 AGND
CS1 30
11 FSMODE
CS2 31
+
N.C. 32
EP*
10 FSSEL
9 OUTDIS
1 2345678
FSMODE FSSEL AVSS AVSSO AGND DGND OUTDIS
*EXPOSED PAD.
TQFN
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