MAX15501EVKIT+ Maxim Integrated Products, MAX15501EVKIT+ Datasheet - Page 13

• Manufacturer Part Number: MAX15501EVKIT+
• Description: KIT EVAL FOR MAX15501
• Manufacturer: Maxim Integrated Products

Specifications of MAX15501EVKIT+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12, 15, 27
24, 32
8, 16,
PIN
10
11
13
14
17
18
1
2
3
4
5
6
7
9
FSMODE
OUTDIS
ERROR
READY
AVSSO
NAME
DGND
FSSEL
AGND
COMP
DOUT
DVDD
REFIN
SCLK
______________________________________________________________________________________
N.C.
DIN
AIN
SPI Clock Input. Activate SCLK only when CS_ is low to minimize noise coupling.
SPI Data Input. Data is clocked into the serial interface on the falling edge of SCLK.
SPI Data Output. Data transitions at DOUT on the falling edge of SCLK. DOUT is high impedance
when either CS1 or CS2 is high.
Active-Low Device Ready Output. READY is an active-low output that goes low when the device
successfully completes processing an SPI data frame. READY returns high at the next rising edge
of CS_. In daisy-chain applications, the READY output typically drives the CS_ input of the next
device in the chain or a GPIO of a microcontroller.
Active-Low Flag Output. ERROR is an open-drain output that pulls low when output short circuit,
output open circuit, overtemperature, or brownout conditions occur. ERROR typically drives an
interrupt input of a microcontroller. The ERROR output is cleared after the internal error register is
read through the SPI interface. Connect a 10kΩ pullup resistor from ERROR to DVDD.
Digital Power-Supply Voltage Input. Apply either a 3V or 5V nominal voltage supply to DVDD.
DVDD powers the digital portion of the MAX15500/MAX15501. Bypass DVDD to DGND with a 0.1FF
capacitor as close as possible to the device.
Digital Ground
No Connection. Not internally connected.
Active-Low Output Disable Input. OUTDIS is an active-low logic input that forces the analog output
to 0A or 0V and puts the device in standby mode when connected to DGND. Connect OUTDIS to
DVDD for normal operation.
Full-Scale Select Input. Connect FSSEL to DVDD for the MAX15500 when applying a +4.096V
reference at REFIN. Connect FSSEL to DGND for the MAX15501 when applying a +2.50V reference
at REFIN.
Overrange Mode Select Input. Connect FSMODE to DVDD to set the output voltage to 105%FS
when the input voltage is equal to the full-scale value. Connect FSMODE to DGND to set the output
voltage to 120%FS when the input voltage is equal to the full-scale value. FSMODE has no effect in
current mode.
Analog Ground
Reference Voltage Input. Connect REFIN to an external +4.096V reference for the MAX15500 or
+2.5V reference for the MAX15501. REFIN is used to set the offset for unipolar and bipolar modes.
Analog Signal Input. The analog input signal range at AIN is from 0V to the nominal full scale of
+4.096V for the MAX15500 and +2.5V for the MAX15501.
Negative Output Driver Supply Voltage Input. AVSSO provides power to the driver output stage.
Bypass AVSSO to AVSS with a 0.1FF capacitor. Use diodes as shown in the Typical Operating
Circuit/Functional Diagram to ensure a voltage difference of 2V to 3.5V between AVSS and AVSSO.
Output Amplifier Compensation Feedback Node. Connect a compensation capacitor from COMP to
OUT. See Table 10 for the recommended compensation capacitor values.
Voltage-Output Conditioners
Industrial Analog Current/
FUNCTION
Pin Description
13