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3PEAK

LMV321A/LMV358A/LMV324A

80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps

www.3peakic.com.cn Rev. A.02

Features

 Upgrade to LMV321/LMV358/LMV324 Family

 Stable 1.0MHz GBWP with Low I

of Only 80μA

Typical per Amplifier

 0.7V/μs Slew Rate

 Excellent EMIRR performance: 80dB(1GHz)

 Offset Voltage Tolerance: 400μV Max.

 Offset Voltage Temperature Drift: 1uV/°C

 Input Bias Current: 1pA Typical

 High Output Current: 50mA (1.0V Drop)

 CMRR/PSRR: 95dB/90dB

 Beyond the Rails Input Common-Mode Range

 Outputs Swing to within 6mV Max of each Rail

 No Phase Reversal for Overdriven Inputs

 No Crossover Distortion

 Drives 2kΩ Resistive Loads

 Single +2.1V to +6.0V Supply Voltage Range

 –40°C to 125°C Operation Range

 ESD Rating:

Robust 8KV – HBM, 2KV – CDM

 Green, Popular Type Package

Applications

 Active Filters, ASIC Input or Output Amplifier

 Sensor Interface

 Smoke/Gas/Environment Sensors

 Portable Instruments and Mobile Device

 Audio Output

 PCMCIA Cards

 Battery or Solar Powered Systems

 Medical Equipment

 Piezo Electrical Transducer Amplifier

Pin Configuration

(Top View)

Description

LMV321A/358A/324A are CMOS single, dual, and

quad op-amps with low offset, stable high frequency

response, low power, low supply voltage, and

rail-to-rail inputs and outputs. They incorporate

3PEAK‟s proprietary and patented design

techniques to achieve best in-class performance

among all micro-power CMOS amplifiers.

The LMV321A/358A/324A are unity gain stable with

Any Capacitive Load with a Constant 1.0MHz

gain-bandwidth product, 0.7V/μs slew rate while

consuming only 80μA of supply current per amplifier.

Analog trim and calibration routine reduces input

offset voltage tolerance to below 400μV. Adaptive

biasing and dynamic compensation enables the

LMV321A /358A/324A to achieve „THD+NOISE‟ for

1kHz and 10kHz 2V

signal at -105dB and -90dB,

respectively. Beyond the rails input and rail-to-rail

output characteristics allow the full power-supply

voltage to be used for signal range.

This combination of features makes the LMV321A

/358A/324A superior among rail-to-rail input /output

CMOS op amps in its power class. The

LMV321A/358A/324A are ideal choices for

battery-powered applications because they

minimize errors due to power supply voltage

variations over the lifetime of the battery and

maintain high CMRR even for a rail-to-rail input

op-amp.

The LMV321A/358A/324A can be used as

cost-effective plug-in replacements for many

commercially available op amps to reduce power

and improve input/output range and performance.

3PEAK and the 3PEAK logo are registered trademarks of

3PEAK INCORPORATED. All other trademarks are the property of

their respective owners.

LMV321A

5-Pin SOT23/SC70

(-T and -C Suffixes)

+In

-VS

-In

Out

+VS

Out A

-VS

+In A

-In A

+VS

Out D

+In D

-In D

Out B

+In B

-In B

Out C

+In C

-In C

LMV324A

14-Pin SOIC/TSSOP

(-S and -T Suffixes)

Out A

-VS

+In A

-In A

+VS

+In B

-In B

Out B

LMV358A

8-Pin SOIC/MSOP

(-S and -V Suffixes)

Summary of content (19 pages)

PAGE 1
3PEAK LMV321A/LMV358A/LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Features Description  Upgrade to LMV321/LMV358/LMV324 Family  Stable 1.0MHz GBWP with Low IQ of Only 80μA Typical per Amplifier  0.7V/μs Slew Rate  Excellent EMIRR performance: 80dB(1GHz)  Offset Voltage Tolerance: 400μV Max.  Offset Voltage Temperature Drift: 1uV/°C  Input Bias Current: 1pA Typical  High Output Current: 50mA (1.
PAGE 2
LMV321A / LMV358A / LMV324A 80μA, 1.
PAGE 3
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Electrical Characteristics The specifications are at TA = 27° C. VS = +2.1 V to +6.0 V, or ± 1.05 V to ± 3.0 V, RL = 2kΩ, CL =100pF.Unless otherwise noted. SYMBOL VOS VOS TC PARAMETER CONDITIONS MIN TYP MAX UNITS 0.6 1 1.4 mV Input Offset Voltage VCM = Vss+0.1V Input Offset Voltage Drift -40° C to 125° C 1 TA = 27 ° C 1 TA = 85 ° C 25 pA 0.
PAGE 4
LMV321A / LMV358A / LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Typical Performance Characteristics VS = ±2.75V, VCM = 0V, RL = Open, unless otherwise specified. Offset Voltage Production Distribution Unity Gain Bandwidth vs. Temperature 2.0 4000 Number = 20000 pcs 1.8 3000 1.5 2500 1.3 GBW(MHz) Population 3500 2000 1500 1.0 0.8 0.5 1000 0.3 500 0.
PAGE 5
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Typical Performance Characteristics VS = ±2.75V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) Common Mode Rejection Ratio CMRR vs. Frequency 160 140 140 120 120 CMRR(dB) CMRR(dB) 100 80 60 40 100 80 60 40 20 20 0 0 0 1 2 3 4 5 1 10 100 Common-mode Voltage(V) 10k 100k 1M Frequency(Hz) Quiescent Current vs. Temperature Short Circuit Current vs. Temperature 120 140 VCM= 2.
PAGE 6
LMV321A / LMV358A / LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Typical Performance Characteristics VS = ±2.75V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) PSRR vs. Temperature CMRR vs. Temperature 140 120 120 CMRR(-dB) PSRR(-dB) 100 80 60 100 80 60 40 40 20 20 0 0 -50 0 50 100 -50 150 0 50 100 150 Temperature(℃) Temperature(℃) EMIRR IN+ vs.
PAGE 7
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Typical Performance Characteristics VS = ±2.75V, VCM = 0V, RL = Open, unless otherwise specified. (Continued) 0.1 Hz TO 10 Hz Input Voltage Noise Offset Voltage vs Common-Mode Voltage 1500 5μV/div Offset voltage Change(μV) 1000 500 0 -500 -1000 -1500 0 1 Time (1s/div) 3 4 5 Common-mode voltage(V) Positive Output Swing vs. Load Current Negative Output Swing vs.
PAGE 8
LMV321A / LMV358A / LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Pin Functions -IN: Inverting Input of the Amplifier. possible should be used between power supply pins or +IN: Non-Inverting Input of Amplifier. between supply pins and ground. OUT: Amplifier Output. The voltage range extends to V- or -Vs: Negative Power Supply. It is normally tied to within mV of each supply rail. ground. It can also be tied to a voltage other than V+ or +Vs: Positive Power Supply.
PAGE 9
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps In applications where low input bias current is critical, Printed Circuit Board (PCB) surface leakage effects need to be considered. Surface leakage is caused by humidity, dust or other contamination on the board. Under low humidity 12 conditions, a typical resistance between nearby traces is 10 Ω.
PAGE 10
LMV321A / LMV358A / LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps 5pF 10kΩ VOUT 10kΩ CPAR VIN Figure 2 Driving Large Capacitive Load The LMV321A/358A/324A of OPA is designed to drive large capacitive loads. Refer to Typical Performance Characteristics for “Phase Margin vs. Load Capacitance”. As always, larger load capacitance decreases overall phase margin in a feedback system where internal frequency compensation is utilized.
PAGE 11
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps and types of components, where possible to match the number and type of thermocouple junctions. For example, dummy components such as zero value resistors can be used to match real resistors in the opposite input path. Matching components should be located in close proximity and should be oriented in the same manner. Ensure leads are of equal length so that thermal conduction is in equilibrium.
PAGE 12
LMV321A / LMV358A / LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Figure 6: Frequency response of 100kHz, 74uA Gain-of-100 Amplifier Buffered Chemical Sensor (pH) Probe The LMV321A/358A/324A OPA has input bias current in the pA range. This is ideal in buffering high impedance chemical sensors such as pH probe. As an example, the circuit in Figure 7 eliminates expansive low-leakage cables that that is required to connect pH probe to metering ICs such as ADC, AFE and/or MCU.
PAGE 13
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps C1 400pF VIN VOUT R1 1MΩ C2 400pF R2 1MΩ R1 = R 2 = R = 1M C1 = C2 = C = 400pF Q = Filter Peaking Factor = 1 R4 2MΩ R3 2MΩ f -3dB = 1/(2  RC ) = 400Hz R 3 = R 4 /(2-1/Q) ; with Q = 1, R 3 =R 4 Figure 8 Portable Gas Sensor Amplifier Gas sensors are used in many different industrial and medical applications.
PAGE 14
LMV321A / LMV358A / LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you have the latest revision. Revision Rev. A 14 Rev. A.02 Change Initial Release www.3peakic.com.
PAGE 15
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Package Outline Dimensions SC70-5 /SOT-353 Dimensions Dimensions In Millimeters In Inches Min Max Min Max A 0.900 1.100 0.035 0.043 A1 0.000 0.100 0.000 0.004 A2 0.900 1.000 0.035 0.039 b 0.150 0.350 0.006 0.014 C 0.080 0.150 0.003 0.006 D 2.000 2.200 0.079 0.087 E 1.150 1.350 0.045 0.053 E1 2.150 2.450 0.085 0.096 e 0.650TYP 0.026TYP e1 1.200 0.047 L 0.525REF 0.021REF L1 0.
PAGE 16
LMV321A / LMV358A / LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Package Outline Dimensions SOP-8 A2 C θ L1 A1 e E D Symbol E1 b 16 Rev. A.02 Dimensions Dimensions In In Millimeters Inches Min Max Min Max A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 C 0.190 0.250 0.007 0.010 D 4.780 5.000 0.188 0.197 E 3.800 4.000 0.150 0.157 E1 5.800 6.300 0.228 0.248 e 1.270 TYP 0.050 TYP L1 0.400 1.270 0.016 0.
PAGE 17
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Package Outline Dimensions MSOP-8 Dimensions Dimensions In In Millimeters Inches Min Max Min Max A 0.800 1.200 0.031 0.047 A1 0.000 0.200 0.000 0.008 A2 0.760 0.970 0.030 0.038 b 0.30 TYP 0.012 TYP C 0.15 TYP 0.006 TYP D 2.900 e 0.65 TYP E 2.900 3.100 0.114 0.122 E1 4.700 5.100 0.185 0.201 L1 0.410 0.650 0.016 0.026 θ 0° 6° 0° 6° Symbol E E1 A A2 e b D 3.100 0.114 0.
PAGE 18
LMV321A / LMV358A / LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Package Outline Dimensions TSSOP-14 Dimensions E1 E A A2 e c D Symbol In Millimeters MIN TYP MAX A - - 1.20 A1 0.05 - 0.15 A2 0.90 1.00 1.05 b 0.20 - 0.28 c 0.10 - 0.19 D 4.86 4.96 5.06 E 6.20 6.40 6.60 E1 4.30 4.40 4.50 e L A1 R1 R 0.65 BSC 0.45 0.60 0.75 L1 1.00 REF L2 0.25 BSC R 0.09 - - θ 0° - 8° θ L1 18 Rev. A.02 L L2 www.3peakic.com.
PAGE 19
LMV321A/LMV358A/ LMV324A 80μA, 1.0MHz, Micro-Power Rail-to-Rail I/O Op Amps Package Outline Dimensions SOP-14 D E1 Dimensions E In Millimeters Symbol e b A A2 A1 MIN TYP MAX A 1.35 1.60 1.75 A1 0.10 0.15 0.25 A2 1.25 1.45 1.65 b 0.36 D 8.53 8.63 8.73 E 5.80 6.00 6.20 E1 3.80 3.90 4.00 e L www.3peakic.com.cn 1.27 BSC 0.45 0.60 0.80 L1 1.04 REF L2 0.25 BSC θ L L1 0.49 0° 8° θ L2 Rev. A.