Part A
AP4310AMTR-G1
Dioden Incorporated
- Lifecycle
- Active
- Stock
- 6574 Stückzahl
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Replacement verdict
Compatible functional replacement candidate
The AP4310AMTR-G1 and AP4310AUMTR-E1 are functionally compatible dual operational amplifiers with integrated voltage references from the same manufacturer family, sharing identical channel count, supply voltage range, and operating temperature specifications. The primary distinction lies in package and pinout configuration, which requires validation against the target PCB footprint before substitution. Both devices are suitable for shunt regulator and amplifier applications in power supply and battery charger designs, though layout verification is recommended prior to adoption.
Channel Count
High match
Supply Voltage Range
High match
Operating Temperature
High match
Package Type
Validation required
Parts at a glance
Part B
AP4310AUMTR-E1
Dioden Incorporated
- Lifecycle
- Active
- Stock
- 7764 Stückzahl
- Package
- SOIC-8
- Series
- Linear-Verstärker.Instrumentation, OP-Verstärker, Pufferverstärker
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AP4310AMTR-G1 | AP4310AUMTR-E1 | Why it matters |
|---|---|---|---|
| Manufacturer | Diodes Incorporated | Diodes Incorporated | Same manufacturer ensures consistent process, documentation, and quality standards. |
| Function / Device Type | Dual operational amplifier with adjustable voltage reference | Dual operational amplifier with adjustable voltage reference | Identical functional block confirms the parts serve the same circuit role. |
| Package / Case | SO-8 | SO-8 | Same footprint allows drop-in PCB replacement without layout changes. |
| Mounting Type | Surface Mount | Surface Mount | Matching mounting style is required for assembly compatibility. |
| Number of Amplifiers | 2 | 2 | Channel count must match for the circuit to function as designed. |
| Supply Voltage Range | 3 V to 36 V | 3 V to 36 V | Compatible operating voltage ensures the part works within the system rail. |
| Reference Voltage | 2.5 V adjustable | 2.5 V adjustable | Matching reference voltage preserves regulation accuracy and setpoints. |
| Input Offset Voltage (max) | ±0.5 mV | ±0.5 mV | Low offset maintains precision in sensing and feedback loops. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Same temperature rating ensures reliability across the application environment. |
| Packaging / Ordering Suffix | Tape & Reel (G1) | Tape & Reel (E1) | Both are reeled for automated assembly; suffix denotes internal ordering/quality code differences. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AP4310AMTR-G1 | AP4310AUMTR-E1 |
|---|---|---|
| Supplier | - | Diodes Incorporated |
| Part Status | Active | Obsolete |
| Amplifier Type | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 |
| Slew Rate | 0.5V/µs | 0.5V/µs |
| Gain Bandwidth Product | 1 MHz | 1 MHz |
| Current - Input Bias | 20 nA | 20 nA |
| Voltage - Input Offset | 500 µV | 500 µV |
| Supply Current | 150µA (x2 Channels) | 150µA (x2 Channels) |
| Current - Output / Channel | 40 mA | 40 mA |
| Voltage - Supply Span(Min) | 3 V | 3 V |
| Voltage - Supply Span(Max) | 36 V | 36 V |
| Operating Temperature | -40°C ~ 105°C (TA) | -40°C ~ 105°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the AP4310AMTR-G1 and AP4310AUMTR-E1?
Both are dual operational amplifier and voltage reference combination ICs from Diodes Incorporated, intended for power supply control and feedback loop applications. They integrate two op-amps with a precision shunt voltage reference in a single package.
What is the difference between the AP4310AMTR-G1 and AP4310AUMTR-E1?
The two part numbers differ in their package and packing suffix. The AP4310AMTR-G1 is supplied in an SO-8 package in tape-and-reel format, while the AP4310AUMTR-E1 is supplied in an MSOP-8 package in tape-and-reel format. The electrical function of the dual op-amp plus reference is the same; the difference is package type and associated thermal and PCB footprint considerations.
Are the AP4310AMTR-G1 and AP4310AUMTR-E1 electrically interchangeable?
Functionally they provide the same dual op-amp and voltage reference topology, but they are not drop-in replacements for each other because the package differs (SO-8 versus MSOP-8). Pin assignments and PCB land patterns must be verified against the respective datasheets before substitution.
What package types do these two parts use?
The AP4310AMTR-G1 uses an SO-8 package. The AP4310AUMTR-E1 uses an MSOP-8 package. Both are surface-mount packages delivered in tape-and-reel for automated assembly.
What is the function of the voltage reference in these devices?
Both devices include a precision shunt voltage reference that provides a stable reference for the op-amp feedback loops, typically used in switching power supply regulation and secondary-side feedback circuits. The reference and op-amps are integrated to reduce external component count.
Which applications are these devices intended for?
They are intended for power supply and feedback control applications such as SMPS regulation, adapter and charger control loops, and other circuits requiring a dual op-amp with an integrated precision reference. Selection between the two part numbers is primarily driven by package and board-space requirements.
How should I choose between the SO-8 and MSOP-8 versions?
Choose the AP4310AMTR-G1 (SO-8) when the PCB layout and thermal requirements favor the larger SO-8 footprint. Choose the AP4310AUMTR-E1 (MSOP-8) when board space is constrained and the smaller MSOP-8 footprint is acceptable. Verify pinout, thermal performance, and assembly process compatibility against the manufacturer datasheet for the selected package.