IO109: 24-bit Analog Input Module

High-resolution 24-bit sigma-delta analog module with 12 differential analog input channels and Simulink driver blocks

This I/O module is a high-end, low-noise analog module with an input resolution of 24 bits. Each analog input channel is equipped with its own dedicated DC-coupled Sigma-Delta A/D converter for sample rates up to 200 kSamples/s. Each converter integrates a 2-pole lowpass analog filter with software selectable cut-off frequency of either 40 kHz or 270 kHz.

Select this I/O module for precision voltage measurements, acquisition of audio signals, and other high dynamic-range signal measurements. Several IO109 modules can be synchronized to form a high channel count, high-resolution A/D subsystem. Synchronization can also be accomplished with analog output modules like the IO107 and IO108 to form a phase-locked I/O subsystem ideal for audio applications.

Analog Inputs

12 differential channels, simultaneous sampling, dedicated Sigma-Delta A/D converter per channel
24-bit resolution
200KSPS maximum A/D sampling frequency (DMA)
Oversampling factor of up to 256
Selectable ±10V, ±5V, ±2.5V voltage range (software-selectable)
Inherent anti-aliasing filtering
Up to 93dB signal-to-noise ratio
Inter-module synchronization and synchronization with analog output modules
Auto-calibration of entire analog input section
Simulink Real-Time™ analog input driver block

Physical
Form factor	PMC
Power requirements	6W typical, 7.5W maximum
PCI bus	32 bit/32 MHz
EMI	EMI shield on component side
Connector	68-Pin SCSI3 Cable connectors: Tyco Electronics Board connector: Tyco Electronics part no. 5749069-7
Environmental
Operating temperature	0 to 65°C (extended temperature variants: -40°C to +85°C)
Relative humidity	0 to 80%, non-condensing
Analog inputs (at 25°C)
Configuration	12 differential analog input channels Dedicated Sigma-Delta A/D converter per channel, DC-coupled
A/D resolution	24 bits
A/D sample frequency	200 kSPS per channel maximum (DMA)
Sampling Mode	Simultaneous, all active input channels, Sigma-Delta conversion
Voltage Ranges	Driver configurable as ±10V, ±5V or ±2.5V
Input impedance	1 MOhm typical in parallel with 20pF, 2MOhm line-to-line
Common mode rejection	80dB to 1kHz, 60dB to 50kHz, typical
SINAD (signal to noise-and-distortion ratio)	93dB typical to 10kHz input bandwidth, 85kHz typical to 50kHz
Input bandwidth (-3dB)	DC to typically 49% of selected sample rate for sample rates to 100ksps, or to 35% of sample rate from 100ksps to 200ksps. Typically DC to 70kHz overall
Overvoltage protection	±25V transients with power applied, ±45 Volts with power removed
DC accuracy (maximum composite error after autocalibration)	±10V range: ± 0.5mV (midscale zero accuracy), Gain accuracy at Fsamp: ± 0.9% (2-4ksps), ± 0.3% (4-15ksps), ± 0.1% (15-200ksps) ±5V range: ± 0.3mV (midscale zero accuracy), Gain accuracy at Fsamp: ± 0.9% (2-4ksps), ± 0.3% (4-15ksps), ± 0.1% (15-200ksps) ±2.5V range: ± 0.1mV (midscale zero accuracy), Gain accuracy at Fsamp: ± 0.9% (2-4ksps), ± 0.3% (4-15ksps), ± 0.1% (15-200ksps)
Reliability
Mean time between failures (MTBF)^*	233,201 hours

MTBF (Mean Time Between Failure) - MTBF values shown are based on calculation according to MIL-HDBK-217F and MIL-HDBK-217F Notice 2; Environment: GB 20°C. The MTBF calculation is based on component FIT rates provided by the component suppliers. If FIT rates are not available, MIL-HDBK-217F and MIL-HDBK-217F Notice 2 formulas are used for the FIT rate calculation.

Item ID	Product Name	Components
20109X	IO109	1 x IO109 1 x shielded round 68-Pin SCSI3 cable, 1.82m (6ft) long 1 x 68-Pin spring-loaded terminal board with DIN-rail mount Driver block library for Simulink Real-Time™ Installation into real-time target machine
201099X	IO109-ExtTemp	IO109-ExtTemp with extended temperature range from -40ºC to +85ºC 1 x shielded round 68-Pin SCSI3 cable, 1.82m (6ft) long 1 x 68-Pin spring-loaded terminal board with DIN-rail mount Driver block library for Simulink Real-Time™ Installation into real-time target machine

Key to X in Item ID
Please replace the X with the code number of the specific target machine into which this I/O module shall be installed:

5 = Mobile real-time target machine
6 = Performance real-time target machines
8 = Baseline real-time target machine

Pricing information
We don't publish pricing information on our website. Upon request by e-mail or phone we can provide a complete price list covering our entire product portfolio in various currencies. We recommend that you get in touch with us to discuss your specific needs. We can then quickly provide you with a tailored quotation including technical and pricing information.