CS3004 Precision Low-voltage Amplifier Features & Description Description Low Offset: The CS3004 dual amplifier is designed for precision amplification of low-level signals. These amplifiers achieve excellent offset stability, hi gh open loop gain, and low noise. T he d evices also exhibit e xcellent CMRR an d PSRR. The common mode input range includes the supply rails. The amplifiers operate with any supply voltage from 2.7 V to 5 V (±1.35 V to ±2.50 V). – 10 μV Max. Low Drift: – 0.05 μV/°C Max. Low Noise: – 17 nV/√Hz Open-loop Voltage Gain: – 150 dB Typ. Rail-to-Rail Inputs Rail-to-Rail Output Swing Pin Configurations CS3004 – to within 10 mV of supply voltage (Top View) 2.1 mA Supply Current Slew rate: Out A 1 – 0.25 V /μs Applications 8 V+ -In A 2 Thermocouple/Thermopile Amplifiers Load Cell and Bridge Transducer Amplifiers Precision Instrumentation Battery-powered Systems 7 Out B A - + B + - +In A 3 6 -In B V- 4 5 +In B 8-Lead SOIC 1. Must not be connected. 1000 200 150 100 100 50 0 -50 10 -100 -150 1 0.01 0.1 1 10 Frequency (Hz) 0 1 2 3 4 5 6 7 8 9 10 Time (sec) Noise vs. Frequency (Measured) Cirrus Logic, Inc. http://www.cirrus.com -200 0.01 Hz to 10 Hz Noise Performance Copyright Cirrus Logic, Inc. 2009 (All Rights Reserved) JUL ‘09 DS719F2 CS3004 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. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. 2 Noise vs Frequency (Measured) .................................................................................5 0.01 Hz to 10 Hz Noise ................................................................................................5 Gain & Phase vs. Frequency (2.7 V)............................................................................5 Gain & Phase vs. Frequency (5 V) ..............................................................................5 Supply Current vs. Supply Voltage ..............................................................................5 Supply Current vs. Temperature .................................................................................5 Voltage Swing vs. Output Current (2.7 V) ...................................................................6 Voltage Swing vs. Output Current (5 V) .......................................................................6 DS719F2 CS3004 1. CHARACTERISTICS AND SPECIFICATIONS 1.1 5 V Electrical Characteristics V+ = +5 V, ±5%; V- = 0V; VCM = 2.5 V; Unless otherwise noted, TA = 25º C (See Note 1). Parameter Min Typ Max Unit Input Offset Voltage (Note 2) • - ±2 ±10 µV Average Input Offset Drift (Note 2) • - ±0.01 ±0.05 µV/ºC • - ±170 - ±250 ±1.5 pA nA • - ±340 - ±500 ±3.0 pA nA - 17 17 - nV/ Hz nV/ Hz Input Bias Current Input Offset Current Input Noise Voltage Density RS = 100 Ω, f0 = 1 Hz RS = 100 Ω, f0 = 1 kHz Input Noise Voltage Input Noise Current Density Input Noise Current 0.1 to 10 Hz - 350 - f0 = 1 Hz - 100 - 0.1 to 10 Hz nVp-p fA/ Hz - 1.9 • V- - V+ Common Mode Rejection Ratio (dc) • 110 120 - dB Power Supply Rejection Ratio • 110 130 - dB • 120 150 150 - dB dB (V+ – 100) (V+ – 10) - (V- + 100 ) (V- + 10) mV mV 0.25 - V/µs 25 - µs - 2.0 2.5 mA - 150 - kHz - 1.5 10 - pF pF Input Voltage Range (Note 2) Large Signal Voltage Gain (Note 3) Output Voltage Swing Slew Rate RL = 2 kΩ to V+/2 RL = 2 kΩ to V+/2 (Note 4) RL = 100 kΩ to V+/2 • RL = 2 k, 100 pF Overload Recovery Time • Supply Current Oscillator Frequency Input Capacitance Differential Common Mode pAp-p V Notes: 1. Symbol “•” denotes specification applies over -40 to +125 ° C. 2. This parameter is guaranteed by design and/or laboratory characterization. 3. Guaranteed within the output limits of (V+ – 0.2 V) to (V- + 0.2 V). 4. Specifies the worst case drive voltage relative to the supply rail under stated load conditions. DS719F2 3 CS3004 1.2 3 V Electrical Characteristics V+ = +3 V, ±10%; V- = 0V; VCM = 2.5 V; Unless otherwise noted, TA = 25º C (See Note 5). Min Typ Max Unit Input Offset Voltage Parameter (Note 6) • - ±2 ±10 µV Average Input Offset Drift (Note 6) • - ±0.01 ±0.05 µV/ºC • - ±110 - ±150 ±1.0 pA nA • - ±220 - ±300 ±2.0 pA nA RS = 100 Ω, f0 = 1 Hz RS = 100 Ω, f0 = 1 kHz - 17 17 - nV/ Hz nV/ Hz 0.1 to 10 Hz - 350 - f0 = 1 Hz - 100 - nVp-p 0.1 to 10 Hz - 1.9 Input Bias Current Input Offset Current Input Noise Voltage Density Input Noise Voltage Input Noise Current Density Input Noise Current fA/ Hz pAp-p • V- - V+ Common Mode Rejection Ratio (dc) • 110 120 - dB Power Supply Rejection Ratio • 110 130 - dB • 120 160 150 - dB dB (V+ – 100) (V+ – 10) - (V- + 100 ) (V- + 10) mV mV 0.25 - V/µs - 25 - µs - 2.0 2.5 mA - 150 - kHz - 1.5 10 - pF pF Input Voltage Range (Note 6) Large Signal Voltage Gain (Note 7) Output Voltage Swing Slew Rate RL = 2 kΩ to V+/2 RL = 2 kΩ to V+/2 (Note 8) RL = 100 kΩ to V+/2 • RL = 2 k, 100 pF Overload Recovery Time • Supply Current Oscillator Frequency Input Capacitance Differential Common Mode V Notes: 5. Symbol “•” denotes specification applies over -40 to +125 ° C. 6. This parameter is guaranteed by design and/or laboratory characterization. 7. Guaranteed within the output limits of (V+ – 0.2 V) to (V- + 0.2 V). 8. Specifies the worst case drive voltage relative to the supply rail under stated load conditions. 4 DS719F2 CS3004 1.3 Absolute Maximum Ratings Parameter Min T yp Max Unit 2.7 - 5.5 V (V-) – 0.3 - (V+) + 0.3 V -65 - +150 ºC [(V+) – (V-)] Supply Voltage Input Voltage Storage Temperature Range 2. TYPICAL PERFORMANCE PLOTS 1000 200 150 100 100 50 0 -50 10 -100 -150 1 0.01 0.1 1 -200 10 0 Frequency (Hz) 1 1 10 100 1k 3 4 5 6 7 8 9 10 Time (sec) Figure 1. Noise vs Frequency (Measured) 180 160 140 120 100 80 60 40 20 0 -20 0.001 0.01 0.1 2 10k 100k 1M Frequency (Hz) Figure 2. 0.01 Hz to 10 Hz Noise 270 225 180 135 90 45 0 -45 -90 -135 -180 10M 180 160 140 120 100 80 60 40 20 0 -20 0.001 0.01 270 225 180 135 90 45 0 0.1 1 10 100 1k Frequency (Hz) 10k 100k 1M -45 -90 -135 -180 10M Figure 4. Gain & Phase vs. Frequency (5 V) Figure 3. Gain & Phase vs. Frequency (2.7 V) 2.5 1.9 Supply Current (mA) Supply Current (mA) 2.0 1.8 1.7 1.6 1.5 2.5 3 3.5 4 4.5 5 Supply voltage Figure 5. Supply Current vs. Supply Voltage DS719F2 5.5 2.0 5V 1.5 2.7V 1.0 0.5 -40 -15 10 35 60 85 110 125 Temperature (°C) Figure 6. Supply Current vs. Temperature 5 CS3004 Typical Performance Plots (Cont.) V+ V+ -50 -50 +125°C -40°C -150 +25°C -200 +200 -40°C +150 +25°C +125°C +100 +25°C -200 +200 -40°C +150 +25°C +125°C +50 0 1 2 3 Output Current (mA) 4 Figure 7. Voltage Swing vs. Output Current (2.7 V) 6 -40°C -150 +100 +50 V– +125°C -100 Output Voltage (mV) Output Voltage (mV) -100 5 V– 0 1 2 3 Output Current (mA) 4 5 Figure 8. Voltage Swing vs. Output Current (5 V) DS719F2 CS3004 3. PACKAGE DRAWINGS 8L SOIC (150 MIL BODY) PACKAGE DRAWING E H 1 b c D SEATING PLANE L e DIM A 0.0 A1 B C D E e H L ∝ ∝ A A1 MIN 53 0.004 0.013 0.007 0.189 0.150 0.040 0.228 0.016 0° INCHES MAX 0.069 0.010 0.020 0.010 0.197 0.157 0.060 0.244 0.050 8° MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 4.80 5.00 3.80 4.00 1.02 1.52 5.80 6.20 0.40 1.27 0° 8° JEDEC # : MS-012 DS719F2 7 CS3004 4. ORDERING INFORMATION Part # Temperature Range Package Description CS3004-FSZ -40 °C to +125 °C 8-lead SOIC, Lead Free 5. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION Model Number Peak Reflow Temp MSL Rating* Max Floor Life CS3004-FSZ 260 °C 2 365 Days * MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020. 8 DS719F2 CS3004 6. REVISION HISTORY Revision Date PP4 FEB 2007 First public release. F1 AUG 2007 Updated to “Final” per QPL process. F2 JUL 2009 Removed lead-containing SOIC & QFN packages from ordering information. DS719F2 Changes 9 CS3004 Contacting Cirrus Logic Support For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find one nearest you go to http://www.cirrus.com IMPORTANT NOTICE Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. 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