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CS3301 Datasheet(PDF) 1 Page - Cirrus Logic |
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CS3301 Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 16 page Copyright © Cirrus Logic, Inc. 2007 (All Rights Reserved) http://www.cirrus.com CS3301 Low-noise, Programmable Gain, Differential Amplifier Features & Desription Signal Bandwidth: DC to 2 kHz Selectable Gain: x1, x2, x4, x8, x16, x32, x64 Differential Inputs, Differential Outputs • Multiplexed inputs: INA, INB, 800 Ω termination • Rough / fine charge outputs for CS5371/72 • Max signal amplitude: 5 Vpp differential • Low input bias: 500 pA Outstanding Noise Performance •0.20 µVp-p between 0.1 Hz and 10 Hz • 8.5 from 0.1 Hz to 2 kHz Low Total Harmonic Distortion • -118 dB THD typical (0.000126%) • -112 dB THD maximum (0.000251%) Low Power Consumption • Normal/LPWR/PWDN: 5.5 mA, 3.5 mA, 10 µA Single or Dual Power Supply Configurations • VA+ = +5 V; VA- = 0 V; VD = +3.3 V to +5 V • VA+ = +2.5 V;VA- = -2.5 V;VD = +3.3 V Description The CS3301 is a low-noise differential input, differential output amplifier with programmable gain, optimized for amplifying signals from low-impedance sensors such as geophones. The gain settings are binary weighted (x1, x2, x4, x8, x16, x32, x64) and are selected using simple pin settings. Two sets of external inputs, INA and INB, simplify system design as inputs from a sensor and test DAC. An internal 800 Ω termination can also be selected for noise tests. Amplifier noise performance is outstanding with a noise density of 8.5 over the 0.1 Hz to 2 kHz band- width. Distortion performance is also extremely good, typically -118 dB THD. Flat noise down to 0.1 Hz and low total harmonic distortion make this amplifier ideal for low-frequency, low-amplitude, differential signals requir- ing maximum dynamic range. ORDERING INFORMATION See page 15. nV/ Hz nV/ Hz INA+ INB+ MUX0 MUX1 INB- INA- VA+ VA- VD DGND CLK OUTR+ OUTF+ GAIN0 GAIN1 GAIN2 OUTF- OUTR- LPWR PWDN + - - + 500 Ω 500 Ω 500 Ω 500 Ω DEC ‘07 DS595F3 680 680 680 680 |
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