Overview
The XTR110, produced by Texas Instruments, is a precision voltage-to-current converter designed for analog signal transmission. It is particularly suited for applications requiring high noise immunity and accurate current-mode signal transmission. The device accepts input voltages of 0 to 5V or 0 to 10V and can be configured for various output current ranges, including 4mA to 20mA, 0mA to 20mA, and 5mA to 25mA. The XTR110 features a precision on-chip metal film resistor network for input scaling and current offsetting, along with an internal 10V voltage reference that can drive external circuitry.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Input Voltage Range | VIN1, VIN2 | 0 | - | 10V (VIN1), 5V (VIN2) | V |
| Output Current Range | Specified Performance | 4 | - | 20mA | mA |
| Nonlinearity | 16mA/20mA Span | 0.01 | 0.025 | 0.005 | % of Span |
| Offset Current | IO = 4mA | 0.2 | 0.4 | 0.1 | % of Span |
| Power Supply Voltage | VCC | +13.5 | - | +40 | V |
| Quiescent Current | Excluding IO | 3 | 4.5 | - | mA |
| Operating Temperature Range | AG, BG | -40 | - | +85 | °C |
| Storage Temperature Range | A, B | -55 | - | +125 | °C |
Key Features
- Selectable input/output ranges: 0V to +5V, 0V to +10V inputs and 0mA to 20mA, 4mA to 20mA, 5mA to 25mA outputs.
- Precision on-chip metal film resistor network for input scaling and current offsetting.
- Internal 10V voltage reference with 10mA drive capability.
- Single-supply operation with a wide supply range of 13.5V to 40V.
- Low nonlinearity of 0.005% max and high accuracy.
- Compact design available in 16-pin plastic DIP, ceramic DIP, and SOL-16 surface-mount packages.
- Low temperature coefficient operation with optional zero TC resistors.
Applications
- Industrial process control.
- Pressure/temperature transmitters.
- Current-mode bridge excitation.
- Grounded transducer circuits.
- Current source reference for data acquisition.
- Programmable current source for test equipment.
- Power plant/energy system monitoring.
Q & A
- What are the input voltage ranges for the XTR110?
The XTR110 accepts input voltages of 0 to 5V or 0 to 10V.
- What are the typical output current ranges for the XTR110?
The typical output current ranges include 4mA to 20mA, 0mA to 20mA, and 5mA to 25mA.
- What is the nonlinearity of the XTR110?
The nonlinearity of the XTR110 is 0.005% max for the 16mA/20mA span.
- What is the power supply voltage range for the XTR110?
The power supply voltage range is from +13.5V to +40V.
- What is the quiescent current of the XTR110?
The quiescent current, excluding the output current, is between 3mA and 4.5mA.
- What are the operating temperature ranges for the XTR110?
The operating temperature ranges are -40°C to +85°C for AG and BG grades, and 0°C to +70°C for KP and KU grades.
- How is the offset current adjusted in the XTR110?
The offset current is adjusted using a potentiometer (R1) by setting the input voltage to zero and adjusting R1 to give the desired output current.
- What is the purpose of the internal 10V voltage reference in the XTR110?
The internal 10V voltage reference is used to drive external circuitry and can be extended with an external NPN transistor for higher current drive.
- Can the XTR110 be used in high noise immunity applications?
Yes, the XTR110 is ideal for applications requiring high noise immunity current-mode signal transmission.
- What are some typical applications of the XTR110?
Typical applications include industrial process control, pressure/temperature transmitters, current-mode bridge excitation, and power plant/energy system monitoring.
