PC/104-Plus Analog I/O Data Acquisition Module with 2MHz A/D, D/A, autocalibration, and digital I/O
  • Details
  • Specification
  • Order information
  • 16 16-bit or 12-bit analog inputs
  • 2MHz maximum aggregate sampling rate
  • Programmable input ranges, polarity, and mode
  • Operating Temperature: -40°C to +85°C

P104-DAQ1616 is a PC/104-Plus data acquisition I/O card integrating Diamond’s newest and fastest analog I/O technology and a PCI Express interface.

This module offers 16-bit or 12-bit A/D sampling at a maximum of 2MHz, supported with an expanded 16K-sample FIFO for reliable data collection in any operating system. Analog output capability has been expanded to 16 16-bit channels with programmable output ranges. All analog I/O features are enhanced with our industry-leading autocalibration technology, featuring independent calibration factors for each input and output range to guarantee maximum accuracy across all operating modes and the entire operating temperature range.

Digital I/O features include seven 8-bit ports with both bit-wide and byte-wide direction control, two 32-bit up/down counter/timers with programmable input source and gate, and four 24-bit pulse-width modulation circuits with 0-100% duty cycle.

Technical specifications

Host Interface

Interface type PCI Express x1

Analog Inputs

Number of inputs 16 single-ended, 8 differential (software selectable)
A/D resolution 16 bits or 12 bits (1/65,536 of full scale) (user selectable)
Bipolar ranges ±10V, ±5V, ±2.5V, ±1.25V
Unipolar ranges 0-10V, 0-5V, 0-2.5V, 0-1.25V
Input bias current 40nA max
Maximum input voltage ±10V for linear operation
Overvoltage protection -25V to +40V on any analog input without damage
Input Impedance 10^13 ohms
Drift ±10ppm/°C typical
Accuracy ±2 LSB, after calibration
Nonlinearity ±3LSB, no missing codes
Conversion rate 2,000,000 aggregate samples/sec max
1,000,000 samples/sec for multi-channel operation
Conversion trigger Software trigger, internal pacer clock, external digital signal
On-board FIFO 16K (16,384) 16-bit samples with programmable interrupt threshold
Calibration Automatic; values stored in EEPROM

Analog Outputs

Number of outputs 16
D/A resolution 16-bits (1/65,536 of full scale)
Output ranges ±1.25V, ±2.5V, ±5V, ±10V, 0-2.5V, 0-5V, 0-10V
Output load current ±1mA max per channel
Output short circuit current 15mA max per channel
Transition time 1V/µs typical
Relative accuracy ±1 LSB channel to channel
Nonlinearity ±1 LSB, monotonic
Reset All channels reset to 0V
Calibration Automatic; values stored in EEPROM

Digital I/O -- Ports A, B, C, D

Number of I/O 32 programmable I/O
Compatibility LVTTL and TTL
Pull-up / Pull-down Programmable
Input voltage Low: 0.0V min, 0.8V max
High: 2.0V min, 5.5V max
Input current ±340µA max
Output voltage Low: 0.0V min, 0.4V max
High: 2.4V min, 3.3V max
Output current Low: 16mA max
High: -16mA max

Digital I/O -- Ports E, F, Auxilary

Number of I/O 24 I/O, EXTTRIG, TOUT1
Compatibility LVTTL
Pull-up / Pull-down Programmable for port E only
Input voltage Low: -0.3V min, 1.0V max
High: 2.0V min, 3.6V max
Input current ±340µA max
Output voltage Low: 0.0V min, 0.4V max
High: 2.7V min, 3.3V max
Output current Low: 12mA max
High: -12mA max


A/D Pacer clock 32-bit up/down counter
General purpose 32-bit up/down counter
Clock source 50MHz or 5MHz on-board clock
External signal
Pulse width modulators 4 independent programmable PWMs with user selectable clock at 1MHz or 50MHz


Form Factor PC/104-Plus
Expansion PC/104-Plus (ISA + PCI) stackable expansion
Power consumption 840mW typical without external load
Dimensions 3.55 x 3.775 in. (90 x 96 mm)
Weight 3.4oz (96g)

Environmental and physical specifications

Operating Temperature -40°C to +85°C
RoHS Compliant
Model Description
P104‑DAQ1616 PC/104-Plus Analog I/O module with 2MHz A/D, D/A, DIO, counter/timers

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