CS3003 Precision Low-voltage Amplifier Features & Description Description The CS3003 single amplifier is designed for precision Low Offset: amplification of low-level signals. This amplifier achieves 10 V Max. excellent offset stability, high open loop gain, and low Low Drift: noise. The devices also exhibit excellent CMRR and 0.05 V/C Max. PSRR. The common mode input range includes the sup- Low Noise: ply rails. The amplifier operates with any supply voltage 17 nV/Hz from 2.7 V to 5 V (1.35 V to 2.50 V). Open-loop Voltage Gain: 150 dB Typ. Rail-to-Rail Inputs Pin Configuration Rail-to-Rail Output Swing CS3003 to within 10 mV of supply voltage (Top View) 1.0 mA Supply Current 1 1 NC Slew rate: 1 8 NC 0.25 V/s -IN 2 - 7 V+ Applications + +IN 3 6 Output Thermocouple/Thermopile Amplifiers 1 Load Cell and Bridge Transducer Amplifiers V- 4 5 NC Precision Instrumentation 8-Lead SOIC Battery-powered Systems 1. Must not be connected. 1000 200 150 100 100 50 0 -50 10 -100 -150 -200 1 0.01 0.1 1 10 0 1 23 4 5 67 89 10 Frequency (Hz) Time (sec) Noise vs. Frequency (Measured) 0.01 Hz to 10 Hz Noise Performance Cirrus Logic, Inc. Copyright Cirrus Logic, Inc. 2009 CS3003 TABLE OF CONTENTS 1. CHARACTERISTICS AND SPECIFICATIONS ............................................. 3 1.1 5 V Electrical Characteristics ................................................................... 3 1.2 3 V Electrical Characteristics ................................................................... 4 1.3 Absolute Maximum Ratings ..................................................................... 5 2. TYPICAL PERFORMANCE PLOTS .............................................................. 5 3. PACKAGE DRAWINGS ................................................................................. 7 4. ORDERING INFORMATION .......................................................................... 8 5. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION ... 8 6. REVISION HISTORY .................................................................................... 9 LIST OF FIGURES Figure 1. Noise vs Frequency (Measured) .................................................................................5 Figure 2. 0.01 Hz to 10 Hz Noise ...............................................................................................5 Figure 3. Gain & Phase vs. Frequency (2.7 V) ...........................................................................5 Figure 4. Gain & Phase vs. Frequency (5 V) ..............................................................................5 Figure 5. Supply Current vs. Supply Voltage ..............................................................................5 Figure 6. Supply Current vs. Temperature .................................................................................5 Figure 7. Voltage Swing vs. Output Current (2.7 V) ...................................................................6 Figure 8. Voltage Swing vs. Output Current (5 V) ......................................................................6 2 DS735F3