The AMC1311 is a precision, isolated amplifier with an isolation barrier that is highly resistant to magnetic interference between the output and the input circuitry. This article will cover pinout, datasheet, applications, features, and other details about AMC1311 amplifiers.
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Apr 8, 2022
Rex Grant
Current sensing with different types of amplifiers
The AMC1311 is a precision, isolated amplifier with an isolation barrier that is highly resistant to magnetic interference between the output and the input circuitry. This article will cover pinout, datasheet, applications, features, and other details about AMC1311 amplifiers.
AMC1311BDWV
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $8.13944 | $8.14 |
| 10+ | $7.67871 | $76.79 |
| 100+ | $7.24407 | $724.41 |
| 500+ | $6.83403 | $3417.02 |
| 1000+ | $6.4472 | $6447.2 |
The AMC1311 device is a precision, isolated amplifier with an isolation barrier that is highly resistant to magnetic interference between the output and the input circuitry. According to VDE V 0884-11 and UL1577, this barrier is certified to provide reinforced galvanic isolation of up to 7 kV peak. This isolated amplifier separates portions of the system that run on different common-mode voltage levels and protects lower-voltage parts from damage when used in conjunction with an isolated power supply.
The AMC1311 device has a high-impedance input that is designed for use with high-voltage resistive dividers or other voltage signal sources with high output resistance. The high-performance of the AMC1311 Amplifiers enables accurate, low-temperature drift voltage or temperature sensing and control in closed-loop systems.
AMC1311 Symbol
AMC1311 Footprint
AMC1311 3D Model
Texas Instruments AMC1311BDWV technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments AMC1311BDWV.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | ACTIVE (Last Updated: 6 days ago) | |
| Factory Lead Time | 12 Weeks | |
| Mounting Type | Surface Mount | |
| Package / Case | 8-SOIC (0.295, 7.50mm Width) | |
| Surface Mount | YES | |
| Number of Pins | 8Pins | |
| Packaging | Tube | |
| JESD-609 Code | e4 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | |
| Number of Terminations | 8Terminations | |
| Type | Isolation | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Product Attribute | Attribute Value | |
|---|---|---|
| Max Operating Temperature | 125°C | |
| Min Operating Temperature | -55°C | |
| Terminal Position | DUAL | |
| Terminal Form | GULL WING | |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED | |
| Number of Functions | 1Function | |
| Supply Voltage | 3.3V | |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
| Base Part Number | AMC1311 | |
| Temperature Grade | MILITARY | |
| Number of Channels | 1Channel | |
| Max Supply Voltage | 5.5V | |
| Min Supply Voltage | 3V | |
| Input Offset Voltage (Vos) | -1.1mV |
| Product Attribute | Attribute Value | |
|---|---|---|
| Bandwidth | 275 kHz | |
| -3db Bandwidth | 275MHz | |
| Input Bias Current | 3.5nA | |
| Isolation Voltage | 1.5kV | |
| Max Junction Temperature (Tj) | 150°C | |
| Ambient Temperature Range High | 125°C | |
| Non-linearity-Max | 0.04% | |
| Height | 2.8mm | |
| Length | 5.85mm | |
| Width | 7.5mm | |
| Thickness | 2.65mm | |
| RoHS Status | ROHS3 Compliant |
2-V, high-impedance input voltage range optimized for isolated voltage measurement
Low offset error and drift:
AMC1311B: ±1.5 mV (max), ±10 µV/°C (max)
AMC1311: ±9.9 mV (max), ±20 µV/°C (typ)
Fixed gain: 1
Very low gain error and drift:
AMC1311B: ±0.2% (max), ±40 ppm/°C (max)
AMC1311: ±1% (max), ±30 ppm/°C (typ)
Low nonlinearity and drift: 0.01%, 1 ppm/°C (typ)
3.3-V operation on high-side (AMC1311B)
Missing high-side supply indication
Safety-related certifications:
7000-VPK reinforced isolation per DIN VDE V 0884-11: 2017-01
5000-VRMS isolation for 1 Minute per UL1577
CAN/CSA no. 5A-component acceptance service notice and IEC 62368-1 end equipment standard
AMC1311 Internal Schematics
Isolated voltage sensing in:
motor drives
frequency inverters
uninterruptible power supplies
The primary purpose of an isolation amplifier is to lower the common voltage between the source and the power load. They operate as electrical safety barriers and provide electrical isolation. They're also utilized to keep the operators safe from current leakage. These are a few of the most commonly utilized gadgets.
Isolation amplifiers provide galvanic separation between their inputs and outputs, ensuring that only the appropriate signals are transmitted and that large common-mode voltages are avoided. The ground separation between sensors is maintained in sensor-based monitoring systems to avoid ground loops.
AMC1311 Dimensions
Texas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume.
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