The XTR106 is a monolithic 4mA to 20mA, two-wire current transmitter designed for cost-optimized bridge sensor applications. This device provides complete bridge excitation (2.5V or 5V reference), instrumentation amplifier, sensor linearization, and current output circuitry. Current for powering additional external input circuitry is available from the VREG pin. The instrumentation amplifier can be used over a wide range of gain, accommodating a variety of input signal types and sensors. Total unadjusted error of the complete current transmitter, including the linearized bridge, is low enough to permit use without adjustment in many applications. The XTR106 operates on loop power supply voltages down to 7.5V. Linearization circuitry provides second-order correction to the transfer function by controlling bridge excitation voltage. The device provides up to a 20:1 improvement in nonlinearity, even with cost-optimized transducers. The XTR106 is available in 14-pin plastic DIP and 14-pin SOIC surface-mount packages, and is specified for the –40°C to +85°C temperature range. The device operates from –40°C to +125°C. The XTR106 is a monolithic 4mA to 20mA, two-wire current transmitter designed for cost-optimized bridge sensor applications. This device provides complete bridge excitation (2.5V or 5V reference), instrumentation amplifier, sensor linearization, and current output circuitry. Current for powering additional external input circuitry is available from the VREG pin. The instrumentation amplifier can be used over a wide range of gain, accommodating a variety of input signal types and sensors. Total unadjusted error of the complete current transmitter, including the linearized bridge, is low enough to permit use without adjustment in many applications. The XTR106 operates on loop power supply voltages down to 7.5V. Linearization circuitry provides second-order correction to the transfer function by controlling bridge excitation voltage. The device provides up to a 20:1 improvement in nonlinearity, even with cost-optimized transducers. The XTR106 is available in 14-pin plastic DIP and 14-pin SOIC surface-mount packages, and is specified for the –40°C to +85°C temperature range. The device operates from –40°C to +125°C.

The XTR108 is a "smart", programmable, 4-20mA, two-wire transmitter designed for temperature and bridge sensors. Zero, span, and linearization errors in the analog signal path can be calibrated via a standard digital serial interface, eliminating manual trimming. Non-volatile ex-ternal EEPROM stores calibration settings. The all-analog signal path contains an input multiplexer, autozeroed programmable-gain instrumentation amplifier, dual programmable current sources, linearization circuit, voltage reference, sub-regulator, internal oscillator, control logic, and an output current amplifier. Programmable level shifting compensates for sensor DC offsets. Selectable up- and down-scale output indicates out-of-range and burn-out per NAMUR NE43. Automatic reset is initiated when supply is lost. The XTR108 is a "smart", programmable, 4-20mA, two-wire transmitter designed for temperature and bridge sensors. Zero, span, and linearization errors in the analog signal path can be calibrated via a standard digital serial interface, eliminating manual trimming. Non-volatile ex-ternal EEPROM stores calibration settings. The all-analog signal path contains an input multiplexer, autozeroed programmable-gain instrumentation amplifier, dual programmable current sources, linearization circuit, voltage reference, sub-regulator, internal oscillator, control logic, and an output current amplifier. Programmable level shifting compensates for sensor DC offsets. Selectable up- and down-scale output indicates out-of-range and burn-out per NAMUR NE43. Automatic reset is initiated when supply is lost.

The XTR110 is a precision voltage-to-current converter designed for analog signal transmission. It accepts inputs of 0 to 5V or 0 to 10V and can be connected for outputs of 4 to 20mA, 0 to 20mA, 5 to 25mA and many other commonly used ranges. A precision on-chip metal film resistor network provides input scaling and current offsetting. An internal 10V voltage reference can be used to drive external circuitry. The XTR110 is available in 16-pin plastic DIP, ceramic DIP and SOL-16 surface-mount packages. Commercial and industrial temperature range models are available. The XTR110 is a precision voltage-to-current converter designed for analog signal transmission. It accepts inputs of 0 to 5V or 0 to 10V and can be connected for outputs of 4 to 20mA, 0 to 20mA, 5 to 25mA and many other commonly used ranges. A precision on-chip metal film resistor network provides input scaling and current offsetting. An internal 10V voltage reference can be used to drive external circuitry. The XTR110 is available in 16-pin plastic DIP, ceramic DIP and SOL-16 surface-mount packages. Commercial and industrial temperature range models are available.

The XTR111 is a precision voltage-to-current converter designed for the standard 0mA to 20mA or 4mA to 20mA analog signals, and sources up to 32mA. The ratio between input voltage and output current is set by a single resistor, RSET. The circuit can also be modified for voltage-output operation. An external P-MOSFET transistor provides high output resistance and a broad-compliance voltage range that extends from 2V less than the supply voltage, VVSP, to voltages far less than ground. The adjustable 3V to 15V subregulator output provides the supply voltage for additional circuitry. The XTR111 is available in 10-pin HVSSOP and VSON surface-mount packages. The XTR111 is a precision voltage-to-current converter designed for the standard 0mA to 20mA or 4mA to 20mA analog signals, and sources up to 32mA. The ratio between input voltage and output current is set by a single resistor, RSET. The circuit can also be modified for voltage-output operation. An external P-MOSFET transistor provides high output resistance and a broad-compliance voltage range that extends from 2V less than the supply voltage, VVSP, to voltages far less than ground. The adjustable 3V to 15V subregulator output provides the supply voltage for additional circuitry. The XTR111 is available in 10-pin HVSSOP and VSON surface-mount packages.

The XTR115 and XTR116 (XTR11x) are precision current output converters designed to transmit analog 4-mA-to-20-mA signals over an industry standard current loop. These devices provide accurate current scaling and output current limit functions. The on-chip voltage regulator (5 V) can be used to power external circuitry. A precision on-chip V REF (2.5 V for the XTR115 and 4.096 V for the XTR116) can be used for offsetting or to excite transducers. A current return pin (I RET) senses any current used in external circuitry to provide an accurate control of the output current. The XTR11x are a fundamental building block of smart sensors using 4-mA-to-20-mA current transmission. The XTR11x are specified for operation over the extended industrial temperature range, –40°C to +85°C. The XTR115 and XTR116 (XTR11x) are precision current output converters designed to transmit analog 4-mA-to-20-mA signals over an industry standard current loop. These devices provide accurate current scaling and output current limit functions. The on-chip voltage regulator (5 V) can be used to power external circuitry. A precision on-chip V REF (2.5 V for the XTR115 and 4.096 V for the XTR116) can be used for offsetting or to excite transducers. A current return pin (I RET) senses any current used in external circuitry to provide an accurate control of the output current. The XTR11x are a fundamental building block of smart sensors using 4-mA-to-20-mA current transmission. The XTR11x are specified for operation over the extended industrial temperature range, –40°C to +85°C.

The XTR115 and XTR116 (XTR11x) are precision current output converters designed to transmit analog 4-mA-to-20-mA signals over an industry standard current loop. These devices provide accurate current scaling and output current limit functions. The on-chip voltage regulator (5 V) can be used to power external circuitry. A precision on-chip V REF (2.5 V for the XTR115 and 4.096 V for the XTR116) can be used for offsetting or to excite transducers. A current return pin (I RET) senses any current used in external circuitry to provide an accurate control of the output current. The XTR11x are a fundamental building block of smart sensors using 4-mA-to-20-mA current transmission. The XTR11x are specified for operation over the extended industrial temperature range, –40°C to +85°C. The XTR115 and XTR116 (XTR11x) are precision current output converters designed to transmit analog 4-mA-to-20-mA signals over an industry standard current loop. These devices provide accurate current scaling and output current limit functions. The on-chip voltage regulator (5 V) can be used to power external circuitry. A precision on-chip V REF (2.5 V for the XTR115 and 4.096 V for the XTR116) can be used for offsetting or to excite transducers. A current return pin (I RET) senses any current used in external circuitry to provide an accurate control of the output current. The XTR11x are a fundamental building block of smart sensors using 4-mA-to-20-mA current transmission. The XTR11x are specified for operation over the extended industrial temperature range, –40°C to +85°C.

The XTR117 is a precision current output converter designed to transmit analog 4-mA-to-20-mA signals over an industry-standard current loop. The device provides accurate current scaling and output current limit functions. The on-chip voltage regulator (5 V) can be used to power external circuitry. A current return pin (I RET) senses any current used in external circuitry to provide an accurate control of the output current. The XTR117 is a fundamental building block of smart sensors using 4-mA-to-20-mA current transmission. The XTR117 is specified for operation over the extended industrial temperature range, –40°C to +125°C. The XTR117 is a precision current output converter designed to transmit analog 4-mA-to-20-mA signals over an industry-standard current loop. The device provides accurate current scaling and output current limit functions. The on-chip voltage regulator (5 V) can be used to power external circuitry. A current return pin (I RET) senses any current used in external circuitry to provide an accurate control of the output current. The XTR117 is a fundamental building block of smart sensors using 4-mA-to-20-mA current transmission. The XTR117 is specified for operation over the extended industrial temperature range, –40°C to +125°C.