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Diodes Incorporated AS2376QS-13
- Part No.:
- AS2376QS-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AS2376QS-13.pdf
- Description:
- OPAMP GENERAL PURPOSE SO-8 T&R 2
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
AS2376QS-13 from Diodes Incorporated is a dual-channel, low-noise (9.5 nV/√Hz at 1 kHz), precision operational amplifier with rail-to-rail input/output, 5.5 MHz gain-bandwidth product, 25 μV max input offset voltage, and 950 μA max quiescent current per amplifier-designed for automotive sensor signal conditioning in battery-powered systems operating from –40°C to +125°C.
For engineers reviewing the AS2376QS-13 datasheet, AS2376QS-13 pinout, AS2376QS-13 application, or AS2376QS-13 equivalent, this device supports high-accuracy analog front-ends in AEC-Q100 Grade 1 environments including airbag sensors, BMS voltage monitoring, and position sensing where low drift, low supply current, and noise-sensitive DC-coupled amplification are critical.
Technical Context
The AS2376QS-13 employs post-package trim to achieve microvolt-level offset without chopper stabilization, preserving full 5.5 MHz bandwidth-unlike typical chopper op-amps limited to <500 kHz. Its dual-channel architecture shares a common V+ and V– supply, with independent input pairs and outputs enabling differential or parallel signal paths.
It features rail-to-rail input stage switching between PMOS and NMOS differential pairs across the common-mode range, with precision optimized at VCM = VS/2. PSRR of 5–20 μV/V and CMRR of 76–90 dB ensure robust operation on noisy automotive rails, while 0.8 μVPP (0.1–10 Hz) noise supports high-resolution DC measurements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 5.5 MHz - Enables stable unity-gain filtering up to ~5 MHz and closed-loop control loop bandwidths suitable for fast-response sensor interfaces. |
| Input Offset Voltage (max) | 25 μV - Ensures ≤0.05% error in 100 mV full-scale BMS cell monitoring at room temperature. |
| Quiescent Current (max) | 950 μA per amplifier - Allows dual-channel operation from 3.3 V Li-ion battery for >1 year in always-on vehicle occupant detection. |
| Input Voltage Noise Density | 9.5 nV/√Hz at 1 kHz - Supports low-noise amplification of microvolt-level signals from piezoresistive pressure sensors. |
| Supply Voltage Range | 2.2 V to 5.5 V - Compatible with direct connection to 3.3 V or 5 V automotive domains and low-voltage battery monitors. |
| Operating Temperature | –40°C to +125°C - Qualified per AEC-Q100 Grade 1 for under-hood and cabin-mounted automotive electronics. |
| PSRR | 5–20 μV/V - Rejects ripple on noisy 5 V domain supplies, reducing need for additional LDO filtering in OBC feedback loops. |
Pinout & Package
AS2376QS-13 is supplied in an SO-8 package (standard JEDEC MS-012AA), 5.0 mm × 6.0 mm body, 1.27 mm pitch, matte tin-plated leads, UL 94V-0 molded plastic housing, and rated for reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN A (Pin 3) | Noninverting input, Channel A | Accepts rail-to-rail common-mode signals; precision trimmed for <25 μV offset when VCM = VS/2. |
| +IN B (Pin 5) | Noninverting input, Channel B | Independent high-impedance node (IB = 0.2–70 pA) for second sensor channel or reference buffer. |
| –IN A (Pin 2) | Inverting input, Channel A | Supports precision transimpedance or difference-amplifier configurations with matched layout requirements. |
| –IN B (Pin 6) | Inverting input, Channel B | Enables dual-channel instrumentation or active filter topologies without cross-talk (dc channel separation ≥0.5 mV/V). |
| OUT A (Pin 1) | Output, Channel A | Rail-to-rail swing (≤20 mV from rail, RL = 10 kΩ) drives ADC inputs or downstream comparators directly. |
| OUT B (Pin 7) | Output, Channel B | Capable of driving 250 pF capacitive loads at unity gain; larger loads require 10–20 Ω series nulling resistor. |
| V+ (Pin 8) | Positive supply | Highest potential rail; must be decoupled with ≥0.1 μF ceramic near pin for PSRR integrity. |
| V– (Pin 4) | Negative supply | Lowest potential rail; tied to ground in single-supply configurations; supports true rail-to-rail input down to V– – 0.1 V. |
Key Features
| Feature | Design Value |
|---|---|
| Post-package offset trim | Reduces initial VOS to 5 μV typ and guarantees ≤25 μV max without chopper-induced switching artifacts or bandwidth loss. |
| 0.1 Hz to 10 Hz integrated noise | 0.8 μVPP enables stable DC-coupled amplification of slow-varying signals like thermistor or strain gauge outputs. |
| Rail-to-rail input/output | Operates with VCM from (V–) – 0.1 V to (V+) + 0.1 V and delivers output within 20 mV of either rail-maximizing dynamic range in 3.3 V systems. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use with PPAP support, IATF 16949 manufacturing, and HTOL/HTSL reliability testing per automotive stress profiles. |
| Low supply current vs. bandwidth trade-off | Delivers 5.5 MHz GBW at only 760 μA typ per amplifier-enabling high-speed precision in power-constrained modules like airbag crash sensors. |
Applications
| Auto Pump Current Sensing | Vehicle Occupant Detection |
|---|---|
|
Use Scenario: Real-time motor phase current measurement in 12 V electric power steering pumps using shunt resistors. IC Role / Device Role / Timing Role: Dual-channel precision amplifier buffers and conditions bidirectional shunt voltage with matched gain and offset for differential subtraction. Use Value: 25 μV max VOS ensures ≤0.5% current measurement error at 50 mV full scale; 950 μA quiescent current minimizes thermal drift in sealed pump housings. |
Use Scenario: Capacitive seat occupancy sensing with microvolt-level signal extraction from electrode arrays. IC Role / Device Role / Timing Role: Low-noise, low-drift instrumentation amplifier front-end rejecting common-mode noise from vehicle EMI sources. Use Value: 9.5 nV/√Hz noise density and 0.8 μVPP (0.1–10 Hz) enable reliable detection of sub-pF capacitance changes caused by human presence. |
| Airbag Crash Sensor Signal Conditioning | Battery Management System Cell Monitoring |
|
Use Scenario: Amplifying piezoelectric accelerometer outputs during collision events, requiring fast settling and minimal offset drift. IC Role / Device Role / Timing Role: Single-supply, rail-to-rail op-amp configured as charge amplifier with 1.6 μs 0.1% settling time for transient response. Use Value: 5.5 MHz GBW and 2 V/μs slew rate support accurate reconstruction of 100 kHz shock pulses; AEC-Q100 qualification ensures functional safety compliance. |
Use Scenario: High-accuracy voltage monitoring of individual Li-ion cells in 48 V mild-hybrid BMS stacks. IC Role / Device Role / Timing Role: Precision buffer and level-shifter for isolated ADC inputs, rejecting supply ripple on noisy 5 V domain rails. Use Value: 20 μV/V PSRR and 76–90 dB CMRR suppress common-mode errors from switching DC-DC converters; –40°C to +125°C operation covers full vehicle thermal envelope. |
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 |
|---|---|---|---|
| TSV912IQ2T | Lower GBW (8 MHz), higher IQ (1.1 mA), no AEC-Q100 qualification, 1.8 V min supply | Targeted at industrial/commercial portable instruments-not automotive qualified | Select if wider supply range (1.8–5.5 V) and higher speed outweigh automotive compliance needs. |
| MCP6V82-E/SN | Zero-drift architecture, 0.25 μV max VOS, lower noise (7 nV/√Hz), but limited GBW (2 MHz), higher cost | Used in ultra-high-precision medical sensors where offset stability dominates bandwidth | Choose only when sub-microvolt offset drift over temperature/time is mandatory and 2 MHz bandwidth suffices. |
Compared with TSV912IQ2T and MCP6V82-E/SN, the AS2376QS-13 uniquely balances AEC-Q100 Grade 1 qualification, 5.5 MHz bandwidth, and 25 μV max offset at <1 mA supply-making it optimal for automotive sensor front-ends where reliability, speed, and precision intersect.
Availability
AS2376QS-13 is available at Aetrix Electronics and suitable for automotive sensor signal conditioning, battery management system (BMS) cell monitoring, and airbag crash sensor front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AS2376QS-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and power management applications.
The AS2376QS-13 belongs to Diodes' precision analog amplifier product line, engineered specifically for AEC-Q100-compliant automotive signal chains demanding low noise, low drift, and robust operation in harsh electrical and thermal environments.
FAQ
What is the maximum capacitive load the AS2376QS-13 can drive stably at unity gain?
The AS2376QS-13 is characterized to drive up to 250 pF capacitive load at unity gain without oscillation. For loads exceeding 250 pF, a series nulling resistor (10–20 Ω) must be placed between the output and capacitor to maintain phase margin-verified in the datasheet's Application Information section with test waveforms and stability analysis.
Does the AS2376QS-13 support true rail-to-rail input when V– is grounded?
Yes. With V– = 0 V, the input common-mode range extends from –0.1 V to (V+) + 0.1 V, enabling signals below ground (e.g., AC-coupled sensor outputs) to be amplified without clipping. This is confirmed in the Electrical Characteristics table under "Input Voltage Range" with test condition VCM = (V–) – 0.1 V.
How does post-package trim improve performance versus internal trimming methods?
Post-package trim adjusts offset after final assembly, eliminating bond-wire and package-stress-induced VOS shifts that occur in die-level trimming. The datasheet specifies 320 μV max package-level shift (Note 12), confirming this method achieves tighter final tolerance-critical for automotive applications where mechanical stress varies across mounting conditions.
Is the AS2376QS-13 pin-compatible with other dual SO-8 op-amps like the LM2904?
No. The AS2376QS-13 uses a non-standard SO-8 pinout: OUT A (Pin 1), –IN A (Pin 2), +IN A (Pin 3), V– (Pin 4), +IN B (Pin 5), –IN B (Pin 6), OUT B (Pin 7), V+ (Pin 8). This differs from LM2904 (which places V+ at Pin 8 but swaps IN+/IN– positions and lacks dual independent outputs in same configuration).
AS2376QS-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:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- 5.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.5 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SO
AS2376QS-13 FAQ
1.How can I place an order for AS2376QS-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AS2376QS-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 AS2376QS-13 reliable?
The price and inventory of AS2376QS-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AS2376QS-13 is usually 5 days.
3.What payment methods are accepted for AS2376QS-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AS2376QS-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AS2376QS-13?
AS2376QS-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AS2376QS-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 AS2376QS-13?
For technical support, including AS2376QS-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AS2376QS-13 requirements.
6.How does Aetrix verify that AS2376QS-13 is sourced from the original manufacturer or authorized distributors?
All AS2376QS-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 AS2376QS-13 meets industry standards.
7.What is the process for return or replacement of AS2376QS-13?
All AS2376QS-13 units undergo pre-shipment inspection (PSI). If there is an issue with AS2376QS-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 AS2376QS-13 part is unused and in its original packaging.
Return procedure for AS2376QS-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AS2376QS-13 Tags
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LM358DT
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LM2904DR
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LM2904DGKR
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