Making Physiology Happen

IA-400D 4 Channel Amplifier

The IA-400D is a signal conditioner for iWorx-brand transducers that provides four channels of excitation power, gain, and noise filtration. It exhibits low system noise and offset, making it suitable for use with high resolution data acquisition systems.

Filters

Each channel of the IA-400D has a switch to allow selection of either a 40 Hz or 10 kHz low pass filter.  This makes the IA-400D an ideal solution for conditioning signals from low-bandwidth transducers such as those used to measure blood pressure or force as well as those applications requiring wider bandwidth.

When used with the C-ISO-256 , the IA-400D can be used to measure Biopotentials such as ECG, EMG etc.  from humans.

Gain Control

Gain control on the IA-400D is very straightforward. A programming resistor in the DIN-8 connector is used to set the gain. iWorx transducers set the IA-400D gain to the optimal value for a given measurement. However, this does not limit the IA-400D to use with iWorx transducers. Many non-iWorx transducers, can be modified to work with the IA-400D.

Offset

The IA-400D is an inherently low offset device. This, together with the low offsets characteristic of bridge-style transducers and the high resolution of the iWorx data acquisition systems dramatically minimizes the need for offset control. The IA-400D user experience is simplified as a result.

The IA-400D is packaged in a low profile enclosure that provides both durability and noise immunity. The device has a small foot print measuring just 6.2 in. x 5.3 in. x 2.3 in. (17.5 cm x 13.5 cm x 6cm)and multiple units are easily stacked to save bench space.

Interfacing to other Transducers:

iWorx provides various adaptor cables for connecting your transducer. Take a look at he various standard interface cable options.  For example: The C-DIN-GRASS-F cable can be used to interface with the Grass FT-03 or FT-10 force transducers.

Power Supply: A-UP12-DC-25-1.5A

Some Transducers compatible with the IA-400D
C-ISO-256
3-lead isolated Biopotential recording preamplifier
BP-100
Blood Pressure Transducer with Extension Cable
BP-102
Blood Pressure Transducer System
BP-600
Non-Invasive Blood Pressure Sensor with DIN8 connector
CM-100
Conductvity Probe
DO2E-200
Combination Current-to-voltage adapter, includes Clark style 02 probe
DT-475
Displacement Transducer
EIM-100
Emotional Intensity Meter
EM-100
Event Marker with DIN connector
ES-300
Electronic Stethoscope
FRS-100
Foot Reaction Switch
FT-302
Dual Range Force Transducer (0 to 10g and 0 to 100g)
FT-325
Hand Dynamometer with DIN connector
GN-100
Single-Axis Goniometer
HS-100
Humidity Sensor
HSM-300
Heart Sounds Microphone with DIN Output
IC-200
Intracellular Probe
ISE-100
pH Electrode
LS-100
Light Sensor
PHRM-100
Polar(R)Heart Rate Monitor Trans./Receiver with DIN connector
PT-104
Pulse Plethysmograph (piezo crystal) with DIN connector
RM-204
Respiration Monitor (piezo crystal) for use with iWorx interfaces.
RM-204A
Respiration Monitor (piezo crystal) fwith DIN Connector (Animal)
SP-304
Spirometer with reuseable 300 Liter flow head
TCI-300K
Thermocouple K-type Interface
TCI-300T
Thermocouple T-type Interface
TM-100
Temperature Sensor with DIN connector
TM-200
Skin Surface Temperature Sensor with DIN connector


Part Number: IA-400D

Manual: IA-400D

Specifications
Number of channels Four (DIN8 connectors)
Operational Modes Bridge
Low-pass Filter Switchable 40 Hz and 10K Hz (± 10%) 8 pole Bessel filter
Input Impedance 10 gigOhm
Transducer Excitation Voltage ± 5 VDC
Gain 110K (set by transducer)
CMRR
Gain = 1 > 80 dB (Minimum) / >92 dB (Typical)
Gain = 10 > 95 dB (Minimum) / >110 dB (Typical)
Gain = 100 > 110 dB (Minimum) / >120 dB (Typical)
Gain = 1000 > 112 dB (Minimum) / >135 dB (Typical)
System Noise <10 µV (RTI) / < 2 µV (RTO)
Number of Outputs 4 single-ended BNC connectors
Output Impedance (Maximum) <10 Ohm (Maximum) / <1 Ohm (Typical)
Current 100mA / channel
Power 12 VDC, 1.5 A
Enclosure Plastic
Dimensions 17.5 cm W, 13.5 cm D, and 6 cm H