LMH6646 Datasheet | Texas Instruments

Features - 1 (VS = 2.7V, TA = 25°C, RL = 1kΩ to V+/2, AV = +1. Typical Values Unless Specified. - - 3d B BW 55 MHz - Supply Voltage Range 2.5 V to 12 V - Slew Rate 22 V/μs - Supply Current 650 μA/channel - Output Short Circuit Current 42 m A - Linear Output Current ±20 m A - Input mon Mode Voltage 0.3 V Beyond Rails - Output Voltage Swing 20 m V from Rails - Input Voltage Noise 17 n V/√Hz - Input Current Noise 0.75 p A/√Hz 2 Applications - Active Filters - High Speed Portable Devices - Multiplexing Applications (LMH6647) - Current Sense Buffer - High Speed Transducer Amp 3 Description The LMH6645 (single) and LMH6646 (dual), rail-torail input and output voltage feedback amplifiers, offer high speed (55 MHz), and low voltage operation (2.7 V) in addition to micro-power shutdown capability (LMH6647, single). Input mon mode voltage range exceeds either supply by 0.3 V, enhancing ease of use in multitude of applications where previously only inferior devices could be used. Output voltage range extends to within 20 m V of either supply rails, allowing wide dynamic range especially in low voltage applications. Even with low supply current of 650 μA/amplifier, output current capability is kept at a respectable ±20 m A for driving heavier loads. Important device parameters such as BW, Slew Rate and output current are kept relatively independent of the operating supply voltage by a bination of process enhancements and design architecture. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LMH6645 SOT-23 (5) SOIC (8) 2.90 mm × 1.60 mm 4.90 mm × 3.91 mm SOIC (8) VSSOP (8) 4.90 mm × 3.91 mm 3.00 mm × 3.00 mm LMH6647 SOT-23 (6) SOIC (8) 2.92 mm × 1.60 mm 4.90 mm × 3.91 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. Frequency Response for Various AV GAIN 0 -2 -4 AV =...