The D.Module2.ADDA500K16 is based on the Texas Instruments data converters ADS8556 and DAC8822. The analog front end digitizes up to 6 single-ended or 3 differential voltage inputs with 16-bit resolution and sampling rates up to 500ksps. The two DAC outputs also deliver 16-bit resolution. Input range and sampling frequency are user-programmable. In the D.Module2 family it can be used with a vertically stacking DSP module, or with vertically stacked DSP and FPGA modules.

Key Features

  • Simultaneous Sampling up to 500kS/s
  • 6 single-ended / 3 differential inputs
  • 2 outputs
  • 16-bit resolution
  • low latency
  • input range 2.5V (option: 10V)
  • multiplexers for gain and offset calibration
D.Module2.ADDA500K16 analog interface module


The D.Module2.ADDA500K16 allows to simultaneously digitize voltage and current in 3-phase systems, e.g. AC induction and brushless DC motor control, and power line monitoring. The high sampling frequency guarantees excellent spectral resolution and short latencies in servo control loops. High resolution and superb static and dynamic characteristics make this module equally well suited for general measurements tasks.

AD ConverterADS855616 bit resolution, 500 KSPS, 1.26µs conversion time
DA ConverterDAC882216 bit resolution, 500ns settling time
Analog Inputs6/3single-ended / differential
 full-scale range+/-1V to +/-3V programmable (-15V OEM option: +/-1V to +/-12.5V)
 bandwidth5 MHz
 input impedance1M ohms || 25 pF
Analog Outputs2single-ended
 full scale range+/-2.5V
 bandwidth3 MHz
 output impedance50 ohms
AD Samplingsimultaneous samplingprogrammable sampling clock: 4 to 500 kHz internal, triggered by DSP timer, or externally supplied conversion start
DA Updates synchronized to AD sampling, triggered by DSP timer, or transparent mode
AD Calibrationsoftware selectableGND (0V), internal reference (fullscale/2), or external calibration input
DSP Interfaceparallel16-bit data bus, 16 jumper-selectable base addressess, 2 jumper-selectable chip selects, 2 programmable interrupts
Power Supplydigital supply3.3V, typ 50mA, max. 70mA
 analog supply+/-5V, typ. 150mA, max. 250mA, OEM option: +/-15V supply
Temperature Range 0 – 70°C
ConnectorsBUS1, BUS2, COM, EXPbottom side: Molex 71436-2164, top side: 71439-0164
 Analog IOtwo 16-pin double-row connectors, 2.54mm (0.1″) pin spacing
Mechanics 86.8 x 58.4 mm, overall height: 15mm, stacked height: 11mm
ROHS compliant
D.Module2.ADDA500K16standard module
D.Module2.ADDA500K16-15VOEM option, +/-15V analog supply, +/-12.5V input range
DS.ADDA500K16software development package including sample programs
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