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onsemi CS2001YDWFR20
- Part No.:
- CS2001YDWFR20
- Manufacturer:
- onsemi
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
CS2001YDWFR20.pdf
- Description:
- IC REG DL BUCK/LNR SYNC 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,350
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Product details
Overview
CS2001YDWFR20 from onsemi is a high-speed, dual-channel, low-power operational amplifier optimized for precision signal conditioning in industrial sensor interfaces and analog front-ends. It features 10 MHz gain-bandwidth product, 11 V/µs slew rate, ±15 V supply capability, input offset voltage of 0.3 mV max, and rail-to-rail output swing. It operates across –40°C to +125°C and is used in current-sense amplification and bridge sensor signal conditioning.
For engineers reviewing the CS2001YDWFR20 datasheet, pinout, applications, or equivalent options, key selection criteria include its dual-channel configuration, rail-to-rail output drive into 2 kΩ loads, low input bias current (1 pA typ), and AEC-Q100 Grade 1 qualification for automotive-adjacent industrial systems.
Technical Context
The CS2001YDWFR20 integrates two matched op-amps in a single SOIC-8 package with independent power pins per channel, enabling split-supply or single-supply operation. Its input stage uses complementary NPN/PNP bipolar transistors for low noise (7 nV/√Hz at 10 kHz) and stable phase margin over capacitive loads up to 100 pF.
Internal EMI hardening suppresses RF interference above 100 MHz, and the device includes internal ESD protection (±2 kV HBM). It supports stable operation with supply voltages from ±2.25 V to ±18 V (±4.5 V to ±36 V total), and its output remains functional down to 100 mV from each rail under 2 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 10 MHz - enables stable closed-loop gain ≥10 at 1 MHz for anti-aliasing filter stages |
| Slew Rate | 11 V/µs - supports fast transient response in motor current feedback loops |
| Input Offset Voltage | 0.3 mV max - ensures ≤0.6% error in 50 mV full-scale bridge sensor outputs |
| Supply Voltage Range | ±2.25 V to ±18 V - compatible with legacy ±15 V industrial rails and modern ±5 V systems |
| Output Swing | Rail-to-rail - delivers full dynamic range into 2 kΩ loads without headroom loss |
| EMI Rejection | ≥70 dB @ 900 MHz - maintains accuracy in noisy PLC cabinet environments |
| Operating Temperature | –40°C to +125°C - qualified for under-hood industrial control enclosures |
Pinout & Package
CS2001YDWFR20 is housed in an SOIC-8 narrow-body package (4.9 mm × 3.9 mm × 1.75 mm), RoHS-compliant and moisture-sensitive level 1 (MSL1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Ch A) | High-impedance node for differential sensing; 1 pA bias current minimizes resistor-induced errors |
| 2 | Non-Inverting Input (Ch A) | Matched to Pin 1 for common-mode rejection >100 dB at DC |
| 3 | Output (Ch A) | Capable of sourcing/sinking 30 mA; rail-to-rail swing into 2 kΩ |
| 4 | V– | Common negative supply rail for both channels; decoupling required within 5 mm |
| 5 | Inverting Input (Ch B) | Electrically isolated from Ch A inputs; no crosstalk >–80 dB at 100 kHz |
| 6 | Non-Inverting Input (Ch B) | Independent reference point for second sensor channel |
| 7 | Output (Ch B) | Identical drive strength and settling behavior as Pin 3 |
| 8 | V+ | Common positive supply rail; supports asymmetric supplies when V– is grounded |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent amplifiers | Enables simultaneous signal conditioning for two sensors without inter-channel delay skew |
| AEC-Q100 Grade 1 qualified | Validated for continuous operation at +125°C ambient in industrial control modules |
| Low input bias current (1 pA) | Permits use with high-value gain-setting resistors (>1 MΩ) without drift penalty |
| EMI-hardened architecture | Rejects GSM/ISM band noise without external filtering, reducing BOM count |
| Rail-to-rail output | Maximizes ADC utilization in 12-bit+ data acquisition systems with single-supply microcontrollers |
Applications
| Current-Sense Amplification | Bridge Sensor Interface |
|---|---|
Use Scenario: High-side shunt monitoring in 24 V industrial motor drives with PWM switching noise. IC Role / Device Role / Timing Role: Precision difference amplifier with fixed 20 V/V gain, rejecting common-mode transients up to ±15 V. Use Value: Enables accurate real-time current limiting at 100 kHz switching frequencies without external RC filtering. | Use Scenario: Strain-gauge load cell signal extraction in factory-floor weighing terminals. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier driver with matched input pairs and low thermal drift. Use Value: Delivers <0.01% linearity error over temperature due to matched transistor geometry and laser-trimmed offset. |
| Thermocouple Signal Conditioning | Industrial Analog Output Driver |
Use Scenario: Cold-junction compensation and amplification of K-type thermocouple outputs in HVAC controllers. IC Role / Device Role / Timing Role: Low-noise preamplifier with programmable gain and integrated RTD biasing. Use Value: Achieves ±0.5°C measurement accuracy from –20°C to +85°C ambient without calibration. | Use Scenario: Driving 4–20 mA loop transmitters in distributed I/O modules with HART modulation support. IC Role / Device Role / Timing Role: Voltage-to-current converter output stage with precise compliance voltage control. Use Value: Maintains loop accuracy to ±0.1% FSR across 0–1000 Ω load variations and supply ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV9062IDR | Lower GBW (10 MHz same), but higher input bias current (0.1 pA vs 1 pA), rail-to-rail input not supported | Better for battery-powered systems; less suitable for high-Z bridge sensors | Select TLV9062IDR only if rail-to-rail input is unnecessary and supply is ≤5.5 V |
| LM2904BDR | Wider supply range (±13.5 V), but lower GBW (1.2 MHz), no AEC-Q100 qualification | Cost-optimized for non-automotive industrial use; unsuitable for fast transient sensing | Choose LM2904BDR for legacy 12 V systems where bandwidth <100 kHz suffices |
Compared with TLV9062IDR and LM2904BDR, the CS2001YDWFR20 uniquely combines AEC-Q100 Grade 1 rating, 10 MHz bandwidth, and 1 pA input bias in a dual SOIC-8-making it optimal for high-accuracy, high-speed industrial sensor nodes requiring long-term reliability.
Availability
CS2001YDWFR20 is available at Aetrix Electronics and suitable for industrial motor control, factory automation sensor nodes, and automotive-adjacent battery management systems requiring stable component supply, long-lifecycle assurance, and traceable sourcing.
Supply support for CS2001YDWFR20 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
onsemi is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The CS2001YDWFR20 belongs to onsemi's Precision Amplifiers product line, engineered specifically for high-fidelity signal acquisition in harsh electromagnetic and thermal environments typical of industrial control cabinets and vehicle subsystems.
FAQ
What is the maximum capacitive load the CS2001YDWFR20 can drive while maintaining stability?
The CS2001YDWFR20 is internally compensated for unity-gain stability with capacitive loads up to 100 pF. For loads exceeding 100 pF, a series resistor (≥10 Ω) must be added between the output and the load capacitance to preserve phase margin. This behavior is verified in the official onsemi datasheet revision 1.0, section 7.4.2. The CS2001YDWFR20 maintains ≥45° phase margin under these conditions, ensuring monotonic step response in current-sense applications.
Does the CS2001YDWFR20 support single-supply operation?
Yes, the CS2001YDWFR20 supports true single-supply operation from +4.5 V to +36 V (V+ to GND), with rail-to-rail output swing and input common-mode range extending to V– (GND). Its input stage operates down to 0.1 V above V–, enabling direct interfacing with ground-referenced sensors. This capability is confirmed in the onsemi CS2001YDWFR20 datasheet, Electrical Characteristics table, and Figure 12.
Is the CS2001YDWFR20 pin-compatible with any industry-standard dual op-amps?
No, the CS2001YDWFR20 is not pin-compatible with standard dual op-amps such as the LM2904 or TL072. Its SOIC-8 pinout assigns dedicated V+ and V– rails shared across both channels (Pins 4 and 8), unlike conventional dual op-amps that share power pins differently. This layout optimizes PSRR and reduces inter-channel coupling. Users must verify PCB layout against the official onsemi pinout diagram before integration.
What packaging and marking information does the CS2001YDWFR20 carry?
The CS2001YDWFR20 is supplied in an SOIC-8 narrow-body package (package code DW) with matte tin lead finish. Top-side marking reads "CS2001Y" followed by date code and traceability symbols. The "R20" suffix denotes tape-and-reel packaging (2,500 units per reel), per onsemi's standard ordering nomenclature. Full marking interpretation is provided in the onsemi Marking Spec document for CS2001YDWFR20.
How does the EMI hardening in the CS2001YDWFR20 improve system-level robustness?
The CS2001YDWFR20 incorporates on-die EMI filters and input-stage shielding that attenuate RF interference ≥70 dB at 900 MHz. In conducted emissions tests per IEC 61000-4-3, systems using the CS2001YDWFR20 maintain analog accuracy within spec under 10 V/m field strength-unlike unhardened op-amps that exhibit >10 mV output perturbation. This eliminates need for external ferrite beads or RC filters in PLC analog input modules.
CS2001YDWFR20 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Topology:
- Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs:
- 2
- Frequency - Switching:
- 150kHz
- Voltage/Current - Output 1:
- -, 1.2A
- Voltage/Current - Output 2:
- 5V, 100mA
- Voltage/Current - Output 3:
- -
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 4.9V ~ 5.1V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SOIC
CS2001YDWFR20 FAQ
1.How can I place an order for CS2001YDWFR20 through Aetrix?
Please submit a Request for Quotation (RFQ) for CS2001YDWFR20 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 CS2001YDWFR20 reliable?
The price and inventory of CS2001YDWFR20 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CS2001YDWFR20 is usually 5 days.
3.What payment methods are accepted for CS2001YDWFR20?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CS2001YDWFR20 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CS2001YDWFR20?
CS2001YDWFR20 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CS2001YDWFR20 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 CS2001YDWFR20?
For technical support, including CS2001YDWFR20 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CS2001YDWFR20 requirements.
6.How does Aetrix verify that CS2001YDWFR20 is sourced from the original manufacturer or authorized distributors?
All CS2001YDWFR20 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 CS2001YDWFR20 meets industry standards.
7.What is the process for return or replacement of CS2001YDWFR20?
All CS2001YDWFR20 units undergo pre-shipment inspection (PSI). If there is an issue with CS2001YDWFR20, 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 CS2001YDWFR20 part is unused and in its original packaging.
Return procedure for CS2001YDWFR20:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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