CS3013 CIRRUS | Alldatasheet

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Copyright © Cirrus Logic, Inc. 2007 (All Rights Reserved) Cirrus Logic, Inc. http://www.cirrus.com 8/27/07 CS3013 Low-power / Low-voltage Precision Amplifier Features & Description ‰ Low Offset: –1 0 µV Typ. ‰ Low Drift: –0 . 0 5 µV/°C Max. ‰ Low Noise: – 22 nV/ √Hz ‰ Open-loop Voltage Gain: – 135 dB Typ. ‰ Rail-to-Rail Inputs ‰ Rail-to-Rail Output Swing – to within 20 mV of supply voltage ‰ 0.5 mA Supply Current ‰ Slew rate: –0 . 2 5 V /µs

Applications

‰ Thermocouple/Thermopile Amplifiers ‰ Load Cell and Bridge Transducer Amplifiers ‰ Precision Instrumentation ‰ Battery-powered Systems

Description

The CS3013 single amplifier is designed for precision amplification of low-level signals. These amplifiers achieve excellent offset stab ility, high open loop gain, and low noise. The device also exhibits excellent CMRR and PSRR. The common mode input range includes the supply rails. The amplifiers operate with any supply volt- age from 2.7 V to 5 V (±1.35 V to ±2.50 V). Pin Configurations NC -IN +IN NC Output NC 8-Lead SOIC QFN-8 CS3013 (Top View) Exposed Thermal Die Pad NC Output NC NC -IN +IN 1 1 1. Must not be connected. 2. Connect thermal die pad to V-. Exposed Thermal Die Pad2 Noise vs. Frequency (Measured) 0.01 Hz to 10 Hz Noise Performance 100 1000 0.01 0.1 1 10 Frequency (Hz) -300 -200 -100 100 200 300 0123456789 1 0 Time (sec) AUG ‘07 DS736F1

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  1. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION ... 8

For all product questions and inquiries contact a Cirrus Logic Sales Representative. does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale. or service marks of their respective owners.

  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). 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 limit s of (V+ – 0.2 V) to (V- + 0.2 V). 4. Specifies the worst case drive vo ltage relative to the supply rail under stated load conditions. Parameter Min Typ Max Unit Input Offset Voltage ( Note 2) • -± 1 0 ± 2 0 µ V Average Input Offset Drift ( Note 2) • - ±0.01 ±0.05 µV/ºC Input Bias Current ±170 ±250 ±1.5 pA nA Input Offset Current ±340 ±500 ±3.0 pA nA Input Noise Voltage Density R S = 100 Ω, f0 = 1 Hz RS = 100 Ω, f0 = 1 kHz Input Noise Voltage 0.1 to 10 Hz - 460 - nV p-p Input Noise Current Density f 0 = 1 Hz - 100 - Input Noise Current 0.1 to 10 Hz - 1.9 - pA p-p Input Voltage Range ( Note 2) • V- - V+ V Common Mode Rejection Ratio (dc) • 105 120 - dB Power Supply Rejection Ratio • 100 120 - dB Large Signal Voltage Gain (Note 3)R L = 2 kΩ to V+/2 • 112 145 135 dB dB Output Voltage Swing R L = 2 kΩ to V+/2 (Note 4)R L = 100 kΩ to V+/2
  • (V+ – 200) (V+ – 20) (V- + 200) (V- + 20) mV mV Slew Rate R L = 2 k, 100 pF - 0.25 - V/µs Overload Recovery Time - 40 - µs Supply Current • -0 . 5 T B D m A Chopping Frequency - 125 - kHz Input Capacitance Differential Common Mode 1.5 pF pF nV/ Hz nV/ Hz fA/ Hz

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1.2 3 V Electrical Characteristics V+ = +3 V, ±10%; V- = 0V; VCM = 1.5 V; Unless otherwise noted, TA = 25º C (See Note 5). Notes: 5. Symbol “ •” denotes specification applies over -40 to +125 ° C. 6. This parameter is guaranteed by design and laboratory characterization. 7. Guaranteed within the output limit s of (V+ – 0.2 V) to (V- + 0.2 V). 8. Specifies the worst case drive vo ltage relative to the supply rail under stated load conditions. Parameter Min Typ Max Unit Input Offset Voltage ( Note 6) • -± 1 0 ± 2 0 µ V Average Input Offset Drift ( Note 6) • - ±0.01 ±0.05 µV/ºC Input Bias Current ±110 ±150 ±1.0 pA nA Input Offset Current ±220 ±300 ±2.0 pA nA Input Noise Voltage Density R S = 100 Ω, f0 = 1 Hz RS = 100 Ω, f0 = 1 kHz Input Noise Voltage 0.1 to 10 Hz - 460 - nV p-p Input Noise Current Density f 0 = 1 Hz - 100 - Input Noise Current 0.1 to 10 Hz - 1.9 - pA p-p Input Voltage Range ( Note 6) • V- - V+ V Common Mode Rejection Ratio (dc) • 105 120 - dB Power Supply Rejection Ratio • 100 120 - dB Large Signal Voltage Gain (Note 7)R L = 2 kΩ to V+/2 • 112 145 135 dB dB Output Voltage Swing R L = 2 kΩ to V+/2 (Note 8)R L = 100 kΩ to V+/2

  • (V+ – 200) (V+ – 20) (V- + 200) (V- + 20) mV mV Slew Rate R L = 2 k, 100 pF - 0.25 - V/µs Overload Recovery Time - 40 - µs Supply Current • - 1.0 1.25 mA Chopping Frequency - 125 - kHz Input Capacitance Differential Common Mode 1.5 pF pF nV/ Hz nV/ Hz fA/ Hz

1.3 Absolute Maximum Ratings

  1. TYPICAL PERFORMANCE PLOTS

Figure 1. Noise vs Frequency (Measured) Figure 3. Gain & Phase vs. Frequency (2.7 V) Figure 5. Supply Current vs. Supply Voltage Figure 2. 0.01 Hz to 10 Hz Noise Figure 4. Gain & Phase vs. Frequency (5 V) Figure 6. Supply Current vs. Temperature

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Figure 7. Voltage Swing vs. Output Current (2.7 V) Figure 8. Voltage Swing vs. Output Current (5 V)

8L QFN (4 mm X 4 mm) PACKAGE DRAWING

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  1. ORDERING INFORMATION 5. ENVIRONMENTAL, MANUFACTURI NG, & HANDLING INFORMATION * MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020. 6. REVISION HISTORY Part # Temperature Range Package Description CS3013-FS -40 °C to +125 °C 8-lead SOIC CS3013-FSZ -40 °C to +125 °C 8-lead SOIC, Lead Free CS3013-FNZ* -40 °C to +125 °C 8-lead QFN, Lead Free * Connect thermal die pad to V-. Model Number Peak Reflow Temp MSL Rating* Max Floor Life CS3013-FS 240 °C 23 6 5 D a y sCS3013-FSZ 260 °C CS3013-FNZ Revision Date Changes A0 JAN 2007 Initial Release. A1 FEB 2007 Corrected diagram on p1. F1 AUG 2007 Updated to “Final” per QPL process.