Diamond-MM

Table of contents

1 Diamond-MM 2 Analog Input 3 Analog Output (models DMM and DMM-XT only) 4 Digital I/O 5 Diamond-MM Universal Driver Functions

Diamond-MM

Diamond-MM is available in four models. Models DMM-NA and DMM-NA-XT do not have analog outputs, so the D/A information below does not apply to them. The remaining information applies to all four models.

Analog Input

Max Input Channels: 16 (single-ended) or 8 (differential)
A/D Resolution: 12 bits (1/4096 of full-scale)
Data range: 0 to 4095 for all voltage ranges
Input Ranges (Bipolar): ±10V, ±5V, ±2.5V, ±1V, ±0.5V, or Custom
Input Ranges (Unipolar): 0-10V, 0-5V, 0-2.5V, 0-1V, or Custom
Supported Conversion Triggers: Software, Internal Clock, or External TTL Signal
Maximum Conversion Rate:

• Software Command: Approx. 2,000-4,000 samples per second, depending on code and hardware platform
• Interrupt Routine:
  • DOS: 20,000-40,000samples per second
  • Windows / Linux: 1,000-2,000 samples per second

FIFO: None

This board does not support programmable input ranges and resolutions. To change these settings, you must adjust the hardware jumpers on the board.

Analog Output (models DMM and DMM-XT only)

Max Output Channels: 2
D/A Resolution: 12 bits (1/4096 of full-scale)
Data range: 0 to 4095
Output Ranges: 0-5V, custom (via potentiometer), or external reference; individual setting per channel

Digital I/O

Max Input Ports: 1 (1 byte or 8 bits), TTL compatible, no readback capability
Max Output Ports: 1 (1 byte or 8 bits), TTL compatible

Digital I/O lines on Diamond-MM are fixed direction and do not require configuration prior to use.

Diamond-MM Universal Driver Functions

• dscADSample()
• dscADSampleInt()
• dscADScan()
• dscADScanInt()
• dscADSetChannel()
• dscADSetSettings()
• dscClearUserInterruptFunction()
• dscCounterDirectSet()
• dscCounterRead()
• dscCounterSetRate()
• dscDAConvert() Models DMM and DMM-XT only
• dscDAConvertScan() Models DMM and DMM-XT only
• dscDAConvertScanInt() Models DMM and DMM-XT only
• dscDIOClearBit()
• dscDIOInputBit()
• dscDIOInputByte()
• dscDIOOutputBit()
• dscDIOOutputByte()
• dscDIOSetBit()
• dscSetUserInterruptFunction()