5B31

5B30/5B31 Millivolt and Voltage Input Data Sheet (REV. 0)

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Millivolt and Voltage Input 5B30/5B31 Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent ri ghts of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. Tel: 781.329.4700 www.analog.com Fax: 781.326.8703 © 2004 Analog Devices, Inc. All rights reserved.

FEATURES

Isolated Voltage Input. Amplifies, Protects, Filters, & Isolates Analog Input Voltages. Protect the computer side from damage due to field-side overvoltage faults. A Series output switch eliminates the need for external multiplexing in many applications. Module circuitry can withstand 240v rms at the input screw- terminals. All 5B30 & 5B31 series modules are mix-and-match and Hot Swappable.

APPLICATIONS

Industrial signal conditioning Industrial signal isolation Industrial signal filtering PRODUCT OVERVIEW The 5B Series represents an innovative generation of low cost, high performance plug-in signal conditioners. Designed for industrial applications, these modules incorporate highly reliable transformer-based isolation and automated surface- mount manufacturing technology. They are compact, economical components whose performance exceeds that available from more expensive devices. Combining 1500 V rms continuous isolation, +0.05% calibrated accuracy, small size and low cost, the 5B Series is an attractive alternative to expensive signal conditioners and in-house designs All modules are potted and identical in pin-out and size (2.27” x 2.32” x 0.595”). They can be mixed and matched, permitting users to address their exact needs, and may be “hot swapped without disturbing field wiring or power. The isolated input modules provide 0 to +5V or +5V outputs and accept J, K, T, E, R, S, N, or B type thermocouples. These modules feature complete signal conditioning functions including 240 V rms input protection, filtering, chopper stabilized low drift +1 uV/oC amplification, 1500 V rms isolation, and sensor excitation when required. All modules feature excellent common mode rejection and meet industrial transient surge withstand specifications. FUNCTIONAL BLOCK DIAGRAM Figure 1. 5B30/5B31 Functional Block Diagram pressure, flow, rotation and other analog signals are required. V/M and frequencies up to 1 GHz.

Rev. 0 | Page 2 of 8 GENERAL DESCRIPTION The 5B30 and 5B31 are single-channel signal conditioning modules that amplify, protect, filter and isolate analog input voltages. The 5B30 and 5B31 protect the computer side from damage due to field-side over voltage faults. All models withstand 240V rms at their input terminals without damage thereby shielding computer side circuitry from field-side over voltage conditions. In addition, 5B30 and 5B31 Series modules are mix-and-match and hot swappable, so can be inserted or removed from any socket in the same backplane without disrupting system power. A chopper-stabilized input amplifier provides low drift and stable gain. At the amplifier input, a stable, laser-trimmed zero- scale input voltage is subtracted from the input signal to set the zero scale value. For user convenience, the zero can be optionally factory-set to meet custom needs. This allows suppression of a zero-scale input value many times larger that the total span for precise expanded-scale measurements. Internal multi-pole low-pass filtering with a four-Hz cutoff (- 3dB) enhances normal-mode (noise on signal) and common- mode (nosie on signal return) rejection at 50/60 Hz, enabling accurate measurement of small signals in high electrical noise. Signal isolation by transformer coupling uses a proprietary modulation technique for linear, stable and reliable performance. The differential input circuit on the field side is fully floating, eliminating the need for any input grounding. A demodulator on the computer side of the signal transformer recovers the original signal, which is then filtered and buffered to provide a low-noise, low-impedance output signal. The output common must be kept within + 3 V of power common. A series output switch eliminates the need for external multiplexing in many applications. The switch is turned on by an active-low enable input. If the switch is to be on at all times, the enable-input should be grounded to power common as it is on the 5B01 and 5B08 backplanes. Figure2

Rev. 0 | Page 3 of 8 5B30 / 5B31—SPECIFICATIONS 5B30 and 5B31 Models Available Model Input Range Output Range 5B30-01 -10 mV to +10 mV -5 V to +5 V 5B30-02 -50 mV to +50 mV -5 V to +5 V 5B30-03 -100 mV to +100 mV -5 V to +5 V 5B30-04 -10 mV to +10 mV 0 V to +5 V 5B30-05 -50 mV to +50 mV 0 V to +5 V 5B30-06 -100 mV to +100 mV 0 V to +5 V 5B30-Custom * * Model Input Range Output Range 5B31-01 -1 V to +1 V -5 V to +5 V 5B31-02 -5 V to +5 V -5 V to +5 V 5B31-03 -10 V to +10 V -5 V to +5 V 5B31-04 -1 V to +1 V 0 V to +5 V 5B31-05 -5 V to +5 V 0 V to +5 V 5B31-06 -10 V to +10 V 0 V to +5 V 5B31-07 -20 V to +20 V -5 V to +5 V 5B31-Custom * * *Custom Input/Output ranges are available. Refer to configuration guide. 5B30 and 5B31 Specifications Description Model 5B30 Model 5B31 Input Ranges Standard Ranges ±10 mV to ±100 mV ±1 V to ±20 V Custom Ranges ±5 mV to ±500 mV ±0.5 V to ±20 V Output Ranges (RL > 50 kΩ)4 -5 V to +5 V or 0 V to +5 V * Accuracy2 Nonlinearity ±0.02% Span * Input Offset vs. Temperature ±1 µV/°C ±20 µV/°C Output Offset vs. Temperature ±20 µV/°C * Gain vs. Temperature ±25 ppm of Reading/°C ±50 ppm of Reading/°C Input Bias Current ±3 nA ±0.2 nA Input Resistance Power On 5 MΩ 650 k Ω Power Off 40 kΩ 650 k Ω

Rev. 0 | Page 4 of 8 Overload 40 kΩ 650 k Ω Noise Input, 0.1 Hz to 10 Hz Bandwidth 0.2 µV rms 2 µV rms Output, 100 kHz Bandwidth 200 µV rms * Bandwidth, -3 dB 4 Hz * Output Rise Time, 10% to 90% Span 200 ms * Common-Mode Voltage (CMV) Input-to-Output, Continuous 1500 V rms maximum * Output-to-Power, Continuous ±3 V maximum * Transient ANSI/IEEE C37.90.1-1989 * Common-Mode Rejection (CMR) 1 kΩ Source Imbalance, 50/60 Hz 160 dB (all ranges) 160 dB (span < ±2 V) 150 dB (span = ±10 V) Normal Mode Rejection, 50/60 Hz 60 dB * Input Protection Continuous 240 V rms maximum * Transient ANSI/IEEE C37.90.1-1989 * Output Resistance 4 50 Ω * Voltage Output Protection Continuous Short to Ground * Output Selection Time 6 µs @ C load = 0 to 2,000 pF * Output Enable Control Max Logic "0" +1 V * Min Logic "1" +2.5 V * Max Logic "1" +36 V * Input Current "0" 0.4 mA * Power Supply Voltage +5 V ±5% * Power Supply Current 30 mA * Power Supply Sensitivity, RTI ±2 µV/Vs% ±0.4 mV/Vs% Mechanical Dimensions 2.275" x 2.375" x 0.595" (57.8 mm x 59.1 mm x 15.1 mm) Environmental Temperature Range Rated Performance -25°C to +85°C * Operating -40°C to +85°C * Storage -40°C to +85°C * Relative Humidity 0 to 93% @ +40°C non-condensing * RFI Susceptibility ±0.5% Span error @ 400 MHz, 5 Watt, 3 ft * * Specifications same as model 5B30. 1 Vz is the nominal input voltage that results in a 0 V output. 2 Includes the combined effects of repeatability, hysteresis, and nonlinearity and assumes RL > 50 kΩ. 3 The output common must be kept within ±3 V of power common. 4 Loads heavier than 50 kΩ will degrade nonlinearity and gain temperature coefficient. Specifications subject to change without notice.

Table 1. Pin Function Descriptions—

2 LOW -

3 HIGH +

Figure 4 . Model 5B Series Module, with pin-out assignments. protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.

Figure 5. Outline Dimensions

Rev. 0 | Page 7 of 8 NOTES

Rev. 0 | Page 8 of 8 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the proper ty of their respective companies. D05095-0-9/04(0)