LMP8350 Series
Ultra Low Distortion Fully Differential Precision ADC Driver with Selectable Power Modes
Manufacturer: Texas Instruments
Catalog
Ultra Low Distortion Fully Differential Precision ADC Driver with Selectable Power Modes
Key Features
• Differential Input and OutputTri-Level Power Settings with ShutdownUltra Low HD2/HD3 and THD+N DistortionAdjustable Output Common-Mode LevelFully-Balanced Differential ArchitectureSingle- or Dual-Supply OperationOperating Voltage Range 4.5 V to 12 VSupply Current 3 mA to 13 mATotal THD+N at 1 KHz 0.000097%HD2 / HD3 Distortion at 1 KHz < –124 dBcBandwidth 118 mHzSettling to 0.1% 20 nsLow Offset Drift 0.4 µV/°COffset Voltage 80 µVVoltage Noise 4.6 nV/HzOperating Temperature Range −40°C to +85°CAll trademarks are the property of their respective owners.Differential Input and OutputTri-Level Power Settings with ShutdownUltra Low HD2/HD3 and THD+N DistortionAdjustable Output Common-Mode LevelFully-Balanced Differential ArchitectureSingle- or Dual-Supply OperationOperating Voltage Range 4.5 V to 12 VSupply Current 3 mA to 13 mATotal THD+N at 1 KHz 0.000097%HD2 / HD3 Distortion at 1 KHz < –124 dBcBandwidth 118 mHzSettling to 0.1% 20 nsLow Offset Drift 0.4 µV/°COffset Voltage 80 µVVoltage Noise 4.6 nV/HzOperating Temperature Range −40°C to +85°CAll trademarks are the property of their respective owners.
Description
AI
The LMP8350 device is an ultra low distortion fully-differential amplifier designed for driving high-performance precision analog-to-digital converters (ADC). As part of the PowerWise family, a unique mode enable pin allows the user to choose from three different operating modes, trading power consumption for dynamic performance.
The high power mode is optimized for highest AC performance. The low noise, wide bandwidth, and fast slew rate make the LMP8350 ideal for driving 24-bit ADCs with input sampling rates of 10 MHz or less. The medium power mode is optimized for precision DC performance, and can be used to drive 24-bit ADCs with input sampling rates of 6 MHz or less. The low power mode is a trade-off between AC performance and quiescent current for power-sensitive applications. The disable mode fully shuts down the amplifier for further standby power savings.
The fully differential architecture of this device allows for easy implementation of a single-ended to fully-differential output conversion. Driving a 3-Vpp, 1-kHz output sine wave with the amplifier powered by ±3.3-V rails in high power mode yields 0.000098% THD+N.
The LMP8350 is part of the LMP precision amplifier family, and is offered in the 8-pin SOIC package, with an operating temperature range of −40°C to +85°C.
The LMP8350 device is an ultra low distortion fully-differential amplifier designed for driving high-performance precision analog-to-digital converters (ADC). As part of the PowerWise family, a unique mode enable pin allows the user to choose from three different operating modes, trading power consumption for dynamic performance.
The high power mode is optimized for highest AC performance. The low noise, wide bandwidth, and fast slew rate make the LMP8350 ideal for driving 24-bit ADCs with input sampling rates of 10 MHz or less. The medium power mode is optimized for precision DC performance, and can be used to drive 24-bit ADCs with input sampling rates of 6 MHz or less. The low power mode is a trade-off between AC performance and quiescent current for power-sensitive applications. The disable mode fully shuts down the amplifier for further standby power savings.
The fully differential architecture of this device allows for easy implementation of a single-ended to fully-differential output conversion. Driving a 3-Vpp, 1-kHz output sine wave with the amplifier powered by ±3.3-V rails in high power mode yields 0.000098% THD+N.
The LMP8350 is part of the LMP precision amplifier family, and is offered in the 8-pin SOIC package, with an operating temperature range of −40°C to +85°C.