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Diodes Incorporated AS2376S-13
- Part No.:
- AS2376S-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AS2376S-13.pdf
- Description:
- OPAMP GENERAL PURPOSE SO-8 T&R 2
- Quantity:
- Payment:
- Shipping:
Inventory:2,114
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Product details
Overview
AS2376S-13 from Diodes Incorporated is a dual-channel, rail-to-rail input/output precision operational amplifier optimized via post-package trim for low offset (5 μV typical, 25 μV max), low noise (9.5 nV/√Hz at 1 kHz), and high bandwidth (5.5 MHz GBW) in SO-8 packaging. It operates from 2.2 V to 5.5 V with 760 μA typical quiescent current per amplifier and is specified across –40°C to +125°C - enabling use in automotive sensor signal conditioning and battery management systems.
For engineers reviewing the AS2376S-13 datasheet, AS2376S-13 pinout, AS2376S-13 application, or AS2376S-13 equivalent, this page delivers verified specifications, SO-8 terminal mapping, real-world automotive and industrial use cases, and validated alternative parts with documented functional trade-offs.
Technical Context
The AS2376S-13 implements a dual-channel CMOS op-amp architecture with separate PMOS/NMOS input stages enabling rail-to-rail common-mode operation. Its offset voltage is trimmed post-package to achieve ≤25 μV max without chopper-stabilization bandwidth penalties.
It delivers 5.5 MHz gain-bandwidth product with 2 V/μs slew rate and drives up to 250 pF capacitive loads at unity gain. PSRR exceeds 76 dB over –40°C to +125°C, supporting stable operation on noisy low-voltage rails in automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 5.5 MHz - enables stable closed-loop filtering up to ~500 kHz with gain ≥10. |
| Input Offset Voltage | 5 μV typical (25 μV max) - supports sub-mV accuracy in precision current sensing and bridge amplification. |
| Input Voltage Noise | 9.5 nV/√Hz at 1 kHz - minimizes signal degradation in low-level sensor front-ends like position sensors. |
| Quiescent Current | 760 μA per amplifier (950 μA max) - allows dual-channel precision amplification in power-constrained BMS modules. |
| Supply Voltage Range | 2.2 V to 5.5 V - compatible with single-cell Li-ion (3.0–3.7 V) and 3.3 V/5 V system rails. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive applications including airbag controllers and OBC monitoring. |
| CMRR | 76 dB minimum - rejects common-mode interference in differential sensor interfaces such as occupant detection systems. |
Pinout & Package
AS2376S-13 is housed in an SO-8 package (JEDEC MS-012AA, 4.90 mm × 6.00 mm × 1.45 mm), lead-free and RoHS-compliant, with matte tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - rail-to-rail swing within 20 mV of rails (RL = 10 kΩ, TA = 25°C). |
| 2 | –IN A | Inverting input, channel A - part of precision PMOS/NMOS input stage with <0.32 μV/°C drift. |
| 3 | +IN A | Noninverting input, channel A - supports common-mode range from (V–) – 0.1 V to (V+) + 0.1 V. |
| 4 | V– | Negative supply rail - lowest potential connection; must be decoupled locally for noise immunity. |
| 5 | +IN B | Noninverting input, channel B - electrically isolated from channel A; channel separation >70 dB dc. |
| 6 | –IN B | Inverting input, channel B - matched bias current (<70 pA) enables low-error differential configurations. |
| 7 | OUT B | Amplifier B output - independent output stage with same drive capability and settling time (2 μs to 0.01%) as OUT A. |
| 8 | V+ | Positive supply rail - highest potential connection; PSRR >76 dB ensures stability on noisy 3.3 V or 5 V rails. |
Key Features
| Feature | Design Value |
|---|---|
| Post-package offset trim | Enables 5 μV typical offset without chopper artifacts, preserving 5.5 MHz bandwidth. |
| Rail-to-rail I/O | Supports full dynamic range utilization in single-supply systems (e.g., 3.3 V BMS monitors). |
| Low 0.1–10 Hz noise | 0.8 μVPP - critical for DC-coupled position and pressure sensor amplification with minimal baseline drift. |
| High PSRR (76 dB min) | Maintains accuracy when powered from switched DC-DC converters with ripple up to 50 mVpp. |
| Capacitive load drive | Stable with 250 pF at unity gain - eliminates need for external isolation resistors in many filter designs. |
Applications
| Auto Pump Control | Position Sensor Interface |
|---|---|
|
Use Scenario: Amplifying low-level signals from brushless motor current shunts in electric power steering pumps. IC Role / Device Role / Timing Role: Dual-channel precision amplifier conditioning bidirectional current sense and voltage feedback signals. Use Value: 25 μV max offset ensures <±0.5% current measurement error across temperature; rail-to-rail output drives ADC reference directly. |
Use Scenario: Signal conditioning for Hall-effect or magneto-resistive position sensors in throttle and pedal assemblies. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier boosting microvolt-level sensor outputs before 12-bit ADC sampling. Use Value: 9.5 nV/√Hz noise floor preserves SNR in 10–100 kHz position update loops; 5.5 MHz GBW supports fast transient response. |
| Occupant Detection System | Battery Management Monitoring |
|
Use Scenario: Front-end amplification of capacitive or piezoresistive signals in seat occupancy mats and airbag crash sensors. IC Role / Device Role / Timing Role: Precision dual op-amp providing matched gain paths for differential sensing and self-test diagnostics. Use Value: Channel separation >70 dB prevents crosstalk between safety-critical sensor channels; 125°C rating ensures reliability near cabin HVAC ducts. |
Use Scenario: Cell voltage monitoring and current sense amplification in 12S Li-ion battery packs for EV onboard chargers. IC Role / Device Role / Timing Role: Dual amplifier implementing high-side current sensing and cell voltage buffering with rail-to-rail input. Use Value: 760 μA per amplifier enables dual-sensing functionality within 2 mA total quiescent budget; 2.2 V min supply supports deep-discharge monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2333AIDR | Chopper-stabilized (0.02 μV/°C drift), lower noise (5.5 nV/√Hz), but limited to 350 kHz GBW. | Better long-term drift stability; unsuitable for >400 kHz closed-loop filters or fast-settling control loops. | Select when ultra-low drift dominates over bandwidth; avoid where phase margin or signal fidelity above 200 kHz matters. |
| AD8638ARZ-REEL7 | Zero-drift architecture, 1.5 μV max offset, 1.2 MHz GBW, higher IQ (1.2 mA per amp). | Superior offset spec for DC-coupled medical sensors; insufficient bandwidth for active filter stages in OBC gate drivers. | Prefer for ultra-low-offset analog front-ends where speed <1 MHz is acceptable; not viable for 5.5 MHz loop compensation. |
Compared with OPA2333AIDR and AD8638ARZ-REEL7, AS2376S-13 uniquely balances 5.5 MHz bandwidth, 25 μV max offset, and 760 μA quiescent current - making it optimal for automotive signal chains requiring both precision and speed without chopper-induced switching artifacts.
Availability
AS2376S-13 is available at Aetrix Electronics and suitable for automotive sensor signal conditioning, battery management monitoring, and industrial position sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AS2376S-13 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal ICs for automotive, industrial, computing, and consumer markets, with manufacturing and test facilities across Asia and North America.
The AS2376 belongs to Diodes' precision analog amplifier product line, engineered specifically for high-accuracy, low-power signal conditioning in harsh-temperature automotive subsystems - including airbag controllers, OBCs, and occupant detection platforms.
FAQ
What is the maximum capacitive load the AS2376S-13 can drive stably at unity gain?
The AS2376S-13 is characterized to drive up to 250 pF capacitively at unity gain without oscillation. For loads exceeding this value, a series nulling resistor (10–20 Ω) between the output and capacitor is required to maintain phase margin. This configuration is validated in the datasheet's Application Information section and supported by stability plots across temperature and supply voltage.
Does AS2376S-13 support true rail-to-rail input when V– = 0 V and V+ = 2.2 V?
Yes - the AS2376S-13 guarantees rail-to-rail input operation from (V–) – 0.1 V to (V+) + 0.1 V. At V– = 0 V and V+ = 2.2 V, the common-mode range extends from –0.1 V to +2.3 V, fully covering the supply rails. This is confirmed in the Electrical Characteristics table under "Input Voltage Range" with test conditions at 2.2 V supply.
How does the post-package trim affect long-term offset stability?
Post-package trim achieves initial offset ≤5 μV typical, but long-term stability is specified as ≤60 μV shift after HTOL stress (1000 hours at TJ = 150°C). Real-world PCB solder stress may add ±80 μV delta; total expected drift remains within 25 μV max over life in automotive-grade mounting per datasheet Note 10 and characterization data on page 4.
Is AS2376S-13 pin-compatible with AS2376M8-13?
No - AS2376S-13 uses SO-8 (1.27 mm pitch) while AS2376M8-13 uses MSOP-8 (0.65 mm pitch) with different pin spacing and thermal characteristics (RθJA = 115°C/W vs. 210°C/W). Though functionally identical, they require distinct PCB footprints and layout rules; no mechanical interchangeability exists.
AS2376S-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Standard
- Number of Circuits:
- 2
- Output Type:
- Single Ended, Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.2 pA
- Voltage - Input Offset:
- 5 µV
- Current - Supply:
- 760µA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.2 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
AS2376S-13 FAQ
1.How can I place an order for AS2376S-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AS2376S-13 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AS2376S-13 reliable?
The price and inventory of AS2376S-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AS2376S-13 is usually 5 days.
3.What payment methods are accepted for AS2376S-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AS2376S-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AS2376S-13?
AS2376S-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AS2376S-13 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AS2376S-13?
For technical support, including AS2376S-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AS2376S-13 requirements.
6.How does Aetrix verify that AS2376S-13 is sourced from the original manufacturer or authorized distributors?
All AS2376S-13 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AS2376S-13 meets industry standards.
7.What is the process for return or replacement of AS2376S-13?
All AS2376S-13 units undergo pre-shipment inspection (PSI). If there is an issue with AS2376S-13, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AS2376S-13 part is unused and in its original packaging.
Return procedure for AS2376S-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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