Cirrus-logic CS3301A Uživatelský manuál stáhnout pdf

http://www.cirrus.com

CS3301A

Low-noise, Programmable Gain, Differential Amplifier

Features & Desription

z Signal Bandwidth: DC to 2 kHz

z Selectable Gain: x1, x2, x4, x8, x16, x32, x64

z Differential Inputs, Differential Outputs

• Multiplexed inputs: INA, INB, 800Ω termination

• Rough / fine outputs for CS5371A / 72A / 73A

• Max signal amplitude: 5 V

differential

• Low input bias: 1 nA typical

Outstanding Noise Performance

• 8.5 from 0.1 Hz to 2 kHz

•0.180µV

p-p

between 0.1 Hz and 10 Hz

Low Total Harmonic Distortion

• -121 dB THD typical (0.0000891%)

• -112 dB THD maximum (0.0002512%)

Low Power Consumption

• Normal operation: 5.5 mA typical

• Power down: 10 µA typical

Small 24-pin SSOP Package

z Bipolar Power Supply Configuration

• VA+ = +2.5 V; VA- = -2.5 V; VD = +3.3 V

Description

The CS3301A is a low-noise differential input, dif-

ferential output amplifier with programmable gain,

optimized for amplifying signals from low-imped-

ance sensors such as geophones. The gain

settings are binary weighted (x1, x2, x4, x8, x16,

x32, x64) and are selected using simple pin set-

tings. 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 bandwidth. Distortion performance is also ex-

tremely good, typically -121 dB THD at x1 gain. Flat

noise down to 0.1 Hz and low total harmonic distor-

tion make this amplifier ideal for low-frequency,

low-amplitude, differential signals requiring maxi-

mum dynamic range.

ORDERING INFORMATION

See page 15.

nV/ Hz

INA+

INB+

MUX0

MUX1

INB-

INA-

VA+

VA-

GND

CLK

OUTR+

OUTF+

GAIN0

GAIN1

GAIN2

OUTF-

OUTR-

PWDN

400 Ω 400 Ω

MAR ‘07

DS757F1

1 2 3 4 5 6 ... 15 16

Shrnutí obsahu

Strany 1 - Description

Strany 2 - LIST OF TABLES

CS3301A10 DS757F12.1.3 Differential SignalsAnalog signals into and out of the CS3301A aredifferential, consisting of two halves with equal butopposite

Strany 3 - TEMPERATURE CONDITIONS

CS3301ADS757F1 11made using the MUX0 and MUX1 pins as shown inTable 1 on page 7.Although a mux selection is provided to enable theINA and INB switches

Strany 4 - ANALOG CHARACTERISTICS

CS3301A12 DS757F12.4 Connection DiagramFigure 5 on page 12 shows a connection diagramfor the CS3301A amplifier when used with theCS5372A dual ∆Σ modul

Strany 5

CS3301ADS757F1 133. PIN DESCRIPTIONPin Name Pin # I/OPin DescriptionVA+1 I Positive analog supply voltage.VA-4 I Negative analog supply voltage.VD16 I

Strany 6

CS3301A14 DS757F14. PACKAGE DIMENSIONSNotes: 1. “D” and “E1” are reference datums and do not included mold flash or protrusions, but do include mold

Strany 7 - DIGITAL CHARACTERISTICS

CS3301ADS757F1 155. ORDERING INFORMATION 6. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION* MSL (Moisture Sensitivity Level) as specified by

Strany 8 - POWER SUPPLY CHARACTERISTICS

CS3301A16 DS757F17. REVISION HISTORY Revision Date ChangesPP1 FEB 2007 Preliminary release.F1 MAR 2007 Updated to final for QPL (Quality Process Level

Strany 9 - 2. GENERAL DESCRIPTION

CS3301A2 DS757F1TABLE OF CONTENTS1. CHARACTERISTICS AND SPECIFICATIONS ...

Strany 10

CS3301ADS757F1 31. CHARACTERISTICS AND SPECIFICATIONS• Min / Max characteristics and specifications are guaranteed over the Specified Operating Condit

Strany 11 - ±2.5 V power supplies

CS3301A4 DS757F1ANALOG CHARACTERISTICS Notes: 4. Guaranteed by design and/or characterization.5. Tested with a full scale input signal of 31.25 Hz.Par

Strany 12 - 12 DS757F1

CS3301ADS757F1 5ANALOG CHARACTERISTICS (CONT.) 6. Common mode signals pass unchanged through the differential amplifier architecture and are rejected

Strany 13 - 3. PIN DESCRIPTION

CS3301A6 DS757F1ANALOG CHARACTERISTICS (CONT.) Notes: 13. Ratio of input common mode amplitude vs. output differential mode amplitude for a perfectly

Strany 14 - 24 PIN SSOP PACKAGE DRAWING

CS3301ADS757F1 7DIGITAL CHARACTERISTICS Notes: 15. Device is intended to be driven with CMOS logic levels.16. When CLK is tied to GND, an internal osc

Strany 15 - 5. ORDERING INFORMATION

CS3301A8 DS757F1POWER SUPPLY CHARACTERISTICS Notes: 17. All outputs unloaded. Analog inputs connected to the internal 800 Ω termination. Digital input

Strany 16 - 7. REVISION HISTORY

CS3301ADS757F1 92. GENERAL DESCRIPTIONThe CS3301A is a low-noise chopper-stabilizedCMOS differential input, differential output ampli-fier for precisi

Komentáře k této Příručce

Žádné komentáře

Cirrus-logic CS3301A Uživatelský manuál

Procházejte online nebo si stáhněte Uživatelský manuál pro Hardware Cirrus-logic CS3301A. Cirrus Logic CS3301A User Manual Uživatelská příručka

Shrnutí obsahu

Komentáře k této Příručce

Související produkty a manuály pro Hardware Cirrus-logic CS3301A