Datasheet - LM124, LM224x, LM324x - Low-power quad operational amplifiers
Document overview
- Manufacturer or author: STMICROELECTRONICS
- PDF pages: 22
Technical content
Datasheet sections
- 1 Pin connections and schematic diagram
- 2 Absolute maximum ratings and operating conditions
- 3 Electrical characteristics
- 4 Electrical characteristic curves
- 5 Typical single-supply applications
- 6 Package information
- 6.1 QFN16 3x3 package information
- 6.2 TSSOP14 package information
- 6.3 SO14 package information
- 7 Ordering information
Features
- Wide gain bandwidth: 1.3 MHz
- Input common mode voltage range includes ground
- Large voltage gain: 100 dB
- Very low supply current/amplifier: 375 µA
- Low input bias current: 20 nA
- Low input voltage: 3 mV max.
- Low input offset current: 2 nA
- Wide power supply range: – Single supply: 3 V to 30 V – Dual supplies: ±1.5 V to ±15 V
Related products
- See TSB572 and TSB611, 36 V newer technology devices, which have enhanced accuracy and ESD rating, reduced power consumption, and automotive grade qualification
- See LM2902 and LM2902W for automotive grade applications
Description
The LM124, LM224x and LM324x consist of four independent, high gain operational amplifiers with frequency compensation implemented internally. They operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low-power supply current drain is independent of the magnitude of the power supply voltage. Product status link LM124, LM224x, LM324x Product reference Part numbers LM124(1) LM124 LM224x LM224, LM224A(2), LM224W(3) LM324x LM324, LM324A, LM324W(3) 1. Prefixes: LM1, LM2, and LM3 refer to temperature range 2. Suffix A refers to enhanced Vio performance 3. Suffix W refers to enhanced ESD ratings. Low-power quad operational amplifiers LM124, LM224x, LM324x Datasheet DS0985 - Rev 8 - September 2019 For further information contact your local STMicroelectronics sales office.
1 Pin connections and schematic diagram
Figure 1. Pin connections (top view)
- The exposed pads of the QFN16 3x3 can be connected to VCC- or left floating
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
- Neither of the input voltages must exceed the magnitude of (VCC +) or (VCC -).
- Short-circuits from the output to V CC can cause excessive heating if VCC > 15 V. The maximum output
from simultaneous short-circuits on all amplifiers.
- This input current only exists when the voltage at any of the input leads is driven negative. It is due to the
output starts up again for input voltages higher than -0.3 V.
- Short-circuits can cause excessive heating. Destructive dissipation can result from simultaneous short-
- Human body model: 100 pF discharged through a 1.5 kΩ resistor between two pins of the device, done for
all couples of pin combinations with other pins floating.
- Machine model: a 200 pF cap is charged to the specified voltage, then discharged directly between two pins
combinations with other pins floating.
Table 2. Operating conditions
3 Electrical characteristics
Table 3. VCC + = 5 V, VCC - = ground, Vo = 1.4 V, Tamb = 25 °C (unless otherwise specified)
Electrical characteristics
Symbol Parameter Min. Typ. Max. Unit VOH High level output voltage, VCC = 30 V, RL = 2 kΩ Tamb = 25 °C 26 27 V Tmin ≤ Tamb ≤ Tmax 26 High level output voltage, VCC = 30 V, RL = 10 kΩ Tamb = 25 °C 27 28 Tmin ≤ Tamb ≤ Tmax 27 High level output voltage, VCC = 5 V, RL = 2 kΩ Tamb = 25 °C 3.5 Tmin ≤ Tamb ≤ Tmax 3 VOL Low level output voltage, RL = 10 kΩ Tamb = 25 °C 5 20 mV Tmin ≤ Tamb ≤ Tmax 20 SR Slew rate VCC = 15 V, Vi = 0.5 to 3 V, RL = 2 kΩ, CL = 100 pF, unity gain 0.4 V/µs GBP Gain bandwidth product VCC = 30 V, f = 100 kHz, Vin=10 mV, RL = 2 kΩ, CL=100 pF 1.3 MHz THD Total harmonic distortion f = 1kHz, Av = 20 dB, RL = 2 kΩ, Vo = 2 Vpp, CL = 100 pF, VCC=30 V 0.015 % en Equivalent input noise voltage f = 1 kHz, Rs = 100 Ω, VCC = 30 V 40 nV/√Hz DVio Input offset voltage drift 7 30 µV/°C DIio Input offset current drift 10 200 pA/°C Vo1/Vo2 Channel separation (4) 1 kHz ≤ f ≤ 20 kHZ 120 kHz 1. Vo = 1.4 V, Rs = 0 Ω, 5 V < VCC + < 30 V, 0 < Vic < VCC + - 1.5 V 2. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output so there is no load change on the input lines. 3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 V. The upper end of the common-mode voltage range is (VCC +) - 1.5 V, but either or both inputs can go to 32 V without damage. 4. Due to the proximity of external components, ensure that there is no coupling originating from stray capacitance between these external parts. Typically, this can be detected at higher frequencies because this type of capacitance increases. LM124, LM224x, LM324x
4 Electrical characteristic curves
Figure 4. Input bias current vs. temperature Figure 5. Output current limitation Figure 6. Input voltage range Figure 7. Supply current vs. supply voltage Figure 8. Gain bandwidth product vs. temperature Figure 9. Common-mode rejection ratio
5 Typical single-supply applications
Figure 20. AC coupled inverting amplifier Figure 21. High input Z adjustable gain DC Figure 22. AC coupled non inverting amplifier Figure 23. DC summing amplifier Figure 24. Non-inverting DC gain Figure 25. Low drift peak detector
6 Package information
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark.
6.1 QFN16 3x3 package information
Figure 29. QFN16 3x3 package outline
Package information
Table 4. QFN16 3x3 mechanical data Figure 30. QFN16 3x3 recommended footprint
6.2 TSSOP14 package information
Figure 31. TSSOP14 package outline Table 5. TSSOP14 package mechanical data
6.3 SO14 package information
Figure 32. SO14 package outline Table 6. SO14 package mechanical data
7 Ordering information
Table 7. Order codes
Ordering information
Revision history
Table 8. Document revision history Added explanation of Vid and Vi limits in Table 2 on page 4. 1-Jun-2005 3 ESD protection inserted in Table 2 on page 4. 25-Sep-2006 4 Editorial update. Renamed Figure 3, Figure 4, Figure 6, Figure 7, Figure 16, Figure 17, Figure 18, and Figure 19. Updated axes titles of Figure 4, Figure 5, Figure 7, and Figure 17. 06-Dec-2013 6 Table 2: Absolute maximum ratings: updated ESD data for HBM and MM. Table 3. VCC + = 5 V, VCC - = ground, Vo = 1.4 V, Tamb = 25 °C (unless otherwise specified). Figure 3. Schematic diagram (LM124, LM224, LM324, one channel).