Additional 3B Resources: Accessories, Backplanes and Power Supplies

Sales and Service: North America (eRathsburg), Rest of World

The 3B Series Signal Conditioning I/O Subsystem provides a low cost, versatile method of interconnecting real world analog signals to a data acquisition, monitoring or control system. It is designed to interface directly to analog signals such as thermocouple, RTD, ac and dc Strain Gage, Torque Transducer, Frequency, LVDT, AD590/AC2626 solid state temperature sensor outputs, and millivolt or process current signals, and convert the inputs to standardized analog outputs compatible with high level analog I/O subsystems.

The 3B Series Subsystem consists of a 19" relay rack, compatible universal mounting backplane and a family of plug-in input and output signal conditioning modules (up to 16 per rack). 8- and 4-channel backplanes are also available. Each backplane incorporates screw terminals for sensor inputs and current outputs and a connector for high level, single-ended outputs to the user’s equipment.

Input and output modules are offered in both isolated (±1500 V peak) and nonisolated versions. The input modules feature complete signal conditioning circuitry optimized for specific sensors or analog signals, and provide high level analog outputs. Each input module provides two simultaneous outputs: 0 V to +10 V (or ±10 V) and 4–20 mA (or 0–20 mA). Output modules accept 0 V to +10 V (or ±10 V) single ended signals and provide an isolated or nonisolated 4–20 mA (or 0–20 mA) process signal. All modules feature a universal pinout and may be readily “mixed and matched” and interchanged without disrupting field wiring.

Each backplane contains the provision for a subsystem power supply. The 3B Series Subsystem can operate either from a common dc/dc or ac power supply mounted on each backplane, or from externally provided dc power. Two LEDs are used to indicate that power is being applied.

Part#	Supply Voltage (v)	Input Type	Isolated	Bandwidth (Hz)	Output Range	Output Type	Input Range	Price* (1000-4999)
1B21	±15	Vin	Y	100	4-20mA, 0-20mA	I	0-1V to 0-10V	$52.81
1B22	±15	Vin	Y	400	4-20mA, 0-20mA	V	0-1V to 0-10V	$72.46
1B31	±15	Gage	Y	20000	+/- 10V	V	Refer to Data Sheet	-
1B32	±15	Gage	N	4	+/- 10V	V	Refer to Data Sheet	-
1B41	±15	RTD	Y	3	+/- 10V	V	Refer to Data Sheet	$108.78
1B51	±15	TC	Y	3	+/- 10V	V	Refer to Data Sheet	$99.07
3B16	±15	Gage	N	3	4-20mA, 0-20mA	I, V	+/- 5mV to +/- 500mV	$140.64
3B17	±15	LVDT, RVDT	N	100	+/- 10V, 4-20mA, 0-20mA	I, V	20mV rms to 5V rms	$209.68
3B18	±15	Gage	N	10000	+/- 10V, 4-20mA, 0-20mA	I, V	+/- 5mV to +/- 500mV	$152.93
3B20	±15	AC Gage	N	100	+/- 10V, 4-20mA, 0-20mA	I, V	1.5mV rms to 150mV rms	$202.29
3B30	±15	mV	Y	3	+/- 10V, 4-20mA, 0-20mA	I, V	+/- 5mV to +/- 500mV	$157.72
3B31	±15	V	Y	3	+/- 10V, 4-20mA, 0-20mA	I, V	+/- .5V to +/- 20V	$157.72
3B32	±15	I	Y	3	+/- 10V, 4-20mA, 0-20mA	I, V	0-20mA, 4-20mA	$157.72
3B34	±15	RTD	Y	3	0-10V, 4-20mA, 0-20mA	I, V	Refer to Data Sheet	$190.75
3B37	±15	TC	Y	3	0-10V, 4-20mA, 0-20mA	I, V	Refer to Data Sheet	$173.41
3B40	±15	mV	Y	10000	+/- 10V, 4-20mA, 0-20mA	I, V	+/- 5mV to +/- 500mV	$177.89
3B41	±15	V	Y	10000	+/- 10V, 4-20mA, 0-20mA	I, V	+/- .5V to +/- 20V	$180.69
3B42	-15	AC mV	Y	3	0-10V, 4-20mA, 0-20mA	I, V	20mV rms to 1V rms	$188.18
3B43	±15	AC V	Y	3	0-10V, 4-20mA, 0-20mA	I, V	1V rms to 50V rms	$191.94
3B44	±15	AC V	Y	3	+/- 10V, 4-20mA, 0-20mA	I, V	50V rms to 550V rms	$191.94
3B45	±15	Frequency	Y	n/a	0-10V, 4-20mA, 0-20mA	I, V	25 Hz to 1100 Hz	$186.38
3B46	±15	Frequency	Y	n/a	+/- 10V, 4-20mA, 0-20mA	I, V	520 Hz to 25 kHz	$186.97
3B47	±15	TC	Y	3	0 to +10V, 4-20mA, 0-20mA	V	Refer to Data Sheet	$215.06
5B30	+5	mV	Y	4	+/- 5V, 0-5V	V	+/-10mv to +/- 100mV	$87.52
5B31	+5	V	Y	4	+/- 5V, 0-5V	V	+/- 1V to +/- 20V	$87.52
5B32	+5	I	Y	4	+/- 5V, 0-5V	V	0-20mA, 4-20mA	$87.52
5B34	+5	RTD	Y	4	0-5V	V	Refer to Data Sheet	$87.52
5B35	+5	RTD	Y	4	0-5V	V	Refer to Data Sheet	$107.67
5B36	+5	Potentiometer	Y	4	0-5V	V	0-10kohm	$115.54
5B37	+5	TC	Y	4	+/- 5V, 0-5V	V	Refer to Data Sheet	$87.52
5B38	+5	Gage	Y	10000	+/- 5V	V	+/-10mv to +/- 200mV	$105.03
5B39	+5	V	Y	400	4-20mA, 0-20mA	I	+/- 5V, 0-5V	$87.52
5B40	+5	mV	Y	10000	+/- 5V, 0-5V	V	+/-10mv to +/- 100mV	$87.52
5B41	+5	V	Y	10000	+/- 5V, 0-5V	V	+/- 1V to +/- 20V	$87.52
5B42	+5	I	Y	100	1-5V, 2-10V	V	0-20mA, 4-20mA	$115.54
5B45	+5	Frequency	Y	n/a	+/- 5V, 0-5V	V	500 Hz to 20 kHz	$105.03
5B46	+5	Frequency	Y	n/a	+/- 5V, 0-5V	V	20 kHz to 275 kHz	$105.03
5B47	+5	TC	Y	4	0-5V	V	Refer to Data Sheet	$115.54
6B50	+5	Digital	N	1000	RS-485 or RS-232	Serial RS-485	TTL or CMOS	$115.51
7B14	+24	RTD	N	3	0-10V, 1-5V	V	Refer to Data Sheet	$54.86
7B27	+24	TC	Y	3	0-10V, 1-5V	V	Refer to Data Sheet	$68.62
7B30	+24	mV	Y	3	0-10V, 1-5V	V	+/- 10mV to +/- 1V	$80.73
7B31	+24	V	Y	3	0-10V, 1-5V	V	+/- 5V to +/- 50V	$80.73
7B32	+24	I	Y	100	0-10V, 1-5V	V	0-20mA, 4-20mA	$69.17
7B33	+24	V or mA	Y	100	0-10V, 1-5V	V	0-5V, 1-5V	$60.55
7B34	+24	RTD	Y	3	0-10V, 1-5V	V	Refer to Data Sheet	$84.40
7B35	+24	I	Y	100	0-10V, 1-5V	V	4-20mA	$82.66
7B37	+24	TC	Y	3	0-10V, 1-5V	V	Refer to Data Sheet	$80.73
7B39	+24	V	Y	100	4-20mA, 0-20mA	I	0-10V, 1-5V	$68.62
7B40	+24	mV	Y	10000	0-10V, 1-5V	V	+/- 10mV to +/- 1V	$92.47
7B41	+24	V	Y	10000	0-10V, 1-5V	V	+/- 5V to +/- 50V	$93.58
7B47	+24	TC	Y	3	0-10V, 1-5V	V	Refer to Data Sheet	$106.42

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

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• Pre-Release: The model has not been released to general production, but samples may be available.
• Production: The model is currently being produced, and generally available for purchase and sampling.
• Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
• Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).

The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

This is the acceptable operating range of the device. The various ranges specified are as follows:

• Commercial: 0 to +70 degrees Celsius
• Military : -55 to +125 degrees Celsius
• Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
• Automotive: -40 to +125 degrees Celsius

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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