LMC7101 STMICROELECTRONICS | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 19
Technical content
Datasheet sections
- 1 Pinout information
- 2 Absolute maximum ratings and operating conditions
- 3 Electrical characteristics
- 4 Electrical characteristic curves
- 5 Application information
- 5.1 Operating voltages
- 5.2 Rail-to-rail input
- 5.3 Long term input offset voltage drift
- 5.4 PCB layouts
- 5.5 Macromodel
- 6 Package information
- 6.1 SOT23-5 package information
- 7 Ordering information
Features
- Low power consumption: 235 µA typ. at 5 V
- Supply voltage: 3 V to 16 V
- Gain bandwidth product: 900 kHz typ.
- Offset voltage: 3 mV maximum
- Low input bias current: 1 pA typ.
- High tolerance to ESD: 4 kV
- Wide temperature range: -40 °C to +125 °C
- Rail-to-Rail input and output
- SOT23-5 package
Applications
- Industrial and automotive signal conditioning
- Active filtering
- Power savings in power-conscious applications
- Medical instrumentation
- High impedance sensors
- Easy interfacing with high impedance sensors
Description
The LMC7101 operational amplifier benefits from STMicroelectronics® 16 V CMOS technology to offer state-of-the-art accuracy and performance in the smallest industrial packages. The LMC7101 offers an outstanding speed/power consumption ratio, 900 kHz gain bandwidth product while consuming only 250 µA at 16 V. Such features make the LMC7101 ideal for sensor interfaces and industrial signal conditioning. The wide temperature range and high ESD tolerance ease use in harsh automotive applications. Product status link LMC7101
Related products
(45 μA, 200 kHz) See TSX921 for higher gain bandwidth products (10 MHz) Tiny, low power, 16 V single operational amplifier for cost-optimized systems LMC7101 Datasheet DS13567 - Rev 1 - November 2020 For further information contact your local STMicroelectronics sales office.
1 Pinout information
Figure 1. Pin connections (top view)
2 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings (AMR)
- All voltage values, except the differential voltage are with respect to the network ground terminal.
- The differential voltage is the non-inverting input terminal with respect to the inverting input terminal.
- V cc - Vin must not exceed 18 V, Vin must not exceed 18 V
- Input current must be limited by a resistor in series with the inputs.
- Short-circuits can cause excessive heating and destructive dissipation.
- 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 of the device
with no external series resistor (internal resistor < 5 Ω), done for all couples of pin combinations with other pins floating.
- Charged device model: all pins plus package are charged together to the specified voltage and then discharged directly to
Table 2. Operating conditions
3 Electrical characteristics
Table 3. Electrical characteristics at VCC+ = 3.3 V with VCC- = 0 V, Vicm = VCC/2, Tamb = 25 ° C, and RL = 10 kΩ connected
Electrical characteristics
Symbol Parameter Conditions Min. Typ. Max. Unit ∫en Low-frequency peak-to-peak input noise Bandwidth, f = 0.1 to 10 Hz 16 µVpp THD+N Total harmonic distortion + noise Follower configuration, fin = 1 kHz, RL = 100 kΩ, Vicm = (VCC -1.5 V)/2, BW = 22 kHz, Vout = 1 Vpp 0.004 % 1. Guaranteed by design Table 4. Electrical characteristics at VCC+ = 5 V with VCC- = 0 V, Vicm = VCC/2, Tamb = 25 ° C, and RL = 10 kΩ connected to
Symbol Parameter Conditions Min. Typ. Max. Unit ɸm RL = 10 kΩ, CL = 100 pF Phase margin 55 Degrees Gm Gain margin 9 dB SR Slew rate RL = 10 kΩ, CL = 100 pF, Vout = 0.5 V to VCC - 0.5 V 1.1 V/μs en Equivalent input noise voltage density f = 1 kHz 55 nV/√Hz f = 10 kHz 29 ∫en Low-frequency peak-to-peak input noise Bandwidth, f = 0.1 to 10 Hz 15 µVpp THD+N Total harmonic distortion + noise Follower configuration, fin = 1 kHz, RL = 100 kΩ, Vicm = (VCC -1.5 V)/2, BW = 22 kHz, Vout = 2 Vpp 0.002 % 1. Typical value is based on the V io drift observed after 1000h at 125 °C extrapolated to 25 °C using the Arrhenius law and assuming an activation energy of 0.7 eV. The operational amplifier is aged in follower mode configuration. 2. Guaranteed by design Table 5. Electrical characteristics at VCC+ = 16 V with VCC- = 0 V, Vicm = VCC/2, Tamb = 25 ° C, and RL = 10 kΩ connected
Symbol Parameter Conditions Min. Typ. Max. Unit VOL Low-level output voltage RL = 10 kΩ, -40 °C < T < 125 °C mV100 Iout Isink Vout = VCC, T = 25 °C 40 92 mA Vout = VCC, -40 °C < T < 125 °C 35 Isource Vout = 0 V, T = 25 °C 30 90 Vout = 0 V, -40 °C < T < 125 °C 25 ICC Supply current, per channel, Vout = VCC/2, RL > 1 MΩ T = 25 °C 250 360 μA -40 °C < T < 125 °C 400 AC performance GBP Gain bandwidth product RL = 10 kΩ, CL = 100 pF 750 900 kHz Fu Unity gain frequency 750 ɸm Phase margin 55 Degrees Gm Gain margin 9 dB SR Slew rate RL = 10 kΩ, CL = 100 pF, Vout = 0.5 V to VCC - 0.5 V 1.1 V/μs en Equivalent input noise voltage density f = 1 kHz 48 nV/√Hz f = 10 kHz 27 ∫en Low-frequency peak-to-peak input noise Bandwidth, f = 0.1 to 10 Hz 15 µVpp THD+N Total harmonic distortion + noise Follower configuration, fin = 1 kHz, RL = 100 kΩ, Vicm = (VCC -1.5 V)/2, BW = 22 kHz, Vout = 5 Vpp 0.0005 % 1. Typical value is based on the V io drift observed after 1000h at 125 °C extrapolated to 25 °C using the Arrhenius law and assuming an activation energy of 0.7 eV. The operational amplifier is aged in follower mode configuration. 2. Guaranteed by design LMC7101
4 Electrical characteristic curves
Figure 2. Supply current vs. supply voltage at Vicm = Figure 4. Output current vs. output voltage at VCC = 5 V Figure 5. Output current vs. output voltage at VCC = 16 V Figure 6. Bode diagram at VCC = 3.3 V Figure 7. Bode diagram at VCC = 5 V
5 Application information
5.1 Operating voltages
The LMC7101 amplifier can operate from 3 V to 16 V. Its parameters are fully specified at 3.3 V, 5 V, and 16 V power supplies. However, the parameters are very stable in the full VCC range. Additionally, the main specifications are guaranteed in extended temperature ranges from -40 to 125 ° C.
5.2 Rail-to-rail input
The LMC7101 device is built with two complementary PMOS and NMOS input differential pairs. The devices have a rail-to-rail input, and the input common mode range is extended from (VCC-) - 0.1 V to (VCC+) + 0.1 V. However, the performance of this device is clearly optimized for the PMOS differential pairs (which means from (VCC-) - 0.1 V to (VCC+) - 1.5 V). Beyond (VCC+) - 1.5 V, the operational amplifiers are still functional but with degraded performance, as can be observed in the electrical characteristics section of this datasheet (mainly Vio and GBP). These performances are suitable for a number of applications that need to be rail-to-rail. The devices are designed to prevent phase reversal.
5.3 Long term input offset voltage drift
To evaluate product reliability, two types of stress acceleration are used:
- Voltage acceleration, by changing the applied voltage
- Temperature acceleration, by changing the die temperature (below the maximum junction temperature allowed by the technology) with the ambient temperature. The voltage acceleration has been defined based on JEDEC results, and is defined using Equation 2. Equation 2 A F V e β V S V U–( ). Where: AFV is the voltage acceleration factor β is the voltage acceleration constant in 1/V, constant technology parameter (β = 1) VS is the stress voltage used for the accelerated test VU is the voltage used for the application The temperature acceleration is driven by the Arrhenius model, and is defined in Equation 3. Equation 3 A F T e E a k T U T S Where: AFT is the temperature acceleration factor Ea is the activation energy of the technology based on the failure rate k is the Boltzmann constant (8.6173 x 10-5 eV.K-1) TU is the temperature of the die when VU is used (K) TS is the temperature of the die under temperature stress (K) The final acceleration factor, AF, is the multiplication of the voltage acceleration factor and the temperature acceleration factor (Equation 4). Equation 4 LMC7101
Application information
DS13567 - Rev 1 page 11/19
A F A F T A F V×= AF is calculated using the temperature and voltage defined in the mission profile of the product. The AF value can then be used in Equation 5 to calculate the number of months of use equivalent to 1000 hours of reliable stress duration. Equation 5 Mont h s A F 1 0 00 h× 1 2 mo n th s 24 h 36 5 .2 5 day s×( )×= / To evaluate the op amp reliability, a follower stress condition is used where VCC is defined as a function of the maximum operating voltage and the absolute maximum rating (as recommended by JEDEC rules). The Vio drift (in µV) of the product after 1000 h of stress is tracked with parameters at different measurement conditions (see Equation 6). Equation 6 V C C ma x V o p wi t h V i c m V C C 2= = / The long term drift parameter (ΔVio), estimating the reliability performance of the product, is obtained using the ratio of the Vio (input offset voltage value) drift over the square root of the calculated number of months (Equation 7). Equation 7 ∆ V i o V i o dr i f t m o nth s( ) Where Vio drift is the measured drift value in the specified test conditions after 1000 h stress duration.
5.4 PCB layouts
For correct operation, it is advised to add 10 nF decoupling capacitors as close as possible to the power supply pins.
5.5 Macromodel
Accurate macromodels of the LMC7101 device are available on the STMicroelectronics’ website at: www.st.com. These models are a trade-off between accuracy and complexity (that is, time simulation) of the LMC7101 operational amplifier. They emulate the nominal performance of a typical device within the specified operating conditions mentioned in the datasheet. They also help to validate a design approach and to select the right operational amplifier, but they do not replace on-board measurements. LMC7101 PCB layouts DS13567 - Rev 1 page 12/19
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 SOT23-5 package information
Figure 19. SOT23-5 package outline Table 6. SOT23-5 mechanical data
Package information
DS13567 - Rev 1 page 13/19
7 Ordering information
Table 7. Order codes
Ordering information
DS13567 - Rev 1 page 14/19
Revision history
Table 8. Document revision history 09-Nov-2020 1 Initial release.
Table 3. Electrical characteristics at VCC+ = 3.3 V with VCC- = 0 V, Vicm = VCC/2, Tamb = 25 ° C, and RL = 10 kΩ connected to Table 5. Electrical characteristics at VCC+ = 16 V with VCC- = 0 V, Vicm = VCC/2, Tamb = 25 ° C, and RL = 10 kΩ connected to