LT1124AIS8#PBF

Current - Input Bias:	5nA
Base Part Number:	LT1124
Supplier Device Package:	8-SO
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	±4 V ~ 18 V
Current - Supply:	2.3mA
Voltage - Input Offset:	20µV
Series:	--
Gain Bandwidth Product:	12.5MHz
Slew Rate:	4.5 V/µs
Output Type:	--
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tube

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LT1124AIS8#PBF application field and working principle

The LT1124AIS8#PBF is an ultra-low power low voltage, low offset drift temperature compensated amplifier, belonging to Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps category. The design of the LT1124AIS8#PBF is optimized for single capacitor Band-Gap references. The wide range of supply voltages, low offset voltage and low input bias current make it suitable for instrumentation amplifiers, temperature measurement systems, automotive measurement systems and other instruments that benefit from low power operation and extended temperature range.The LT1124AIS8#PBF has several features that give it a distinct advantage over competing devices. It has an extended temperature range of -40°C to 125°C, a differential offset voltage that is guaranteed to be less than 5mV, and an input bias current of less than 0.1nA. The supply current for most applications is typically less than 500nA, and the offset drift is less than 3µV/°C. These features contribute to the low power consumption of the device and make it suitable for battery powered and portable applications.The LT1124AIS8#PBF also has high output drive capability and a wide common-mode range. The device can drive up to 500mA, and has a common-mode range up to 20VP-P. This makes the device ideal for applications such as drive amplifiers, voltage monitoring and level shifting.The LT1124AIS8#PBF operates with a single power supply, and can be configured as inverting, non-inverting, or single-ended amplifiers. The open-loop voltage gain of the device is typically 60 dB. The LT1124AIS8#PBF is unity-gain stable and requires no external compensation. The device has a well-defined frequency response, with a gain-bandwidth product of 2MHz.The LT1124AIS8#PBF is a single-supply amplifier because it is powered from a single DC power source. The single supply power source means that the device will not be affected by any voltage differences between the two power rails that are present in dual-supply amplifiers. In addition to this, the single-supply configuration results in a maximum output swing close to the power supply rails and a low output impedance.The LT1124AIS8#PBF uses the Band-Gap reference circuit to provide the bias current and offset voltage. The Band-Gap reference circuit relies on the temperature coefficient of junction resistance to provide an adjustable voltage reference point. This reference voltage is then buffered by an operational amplifier to provide the bias current and offset voltage.The combination of the low offset drift, low power consumption and high performance makes the LT1124AIS8#PBF an ideal choice for instrumentation, automotive measurement systems and other applications that require precision, low power and extended temperature range.

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