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Texas Instruments OPA2836IRMCR
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- Part No.:
- OPA2836IRMCR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-UFQFN
- Datasheet:
-
OPA2836IRMCR.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 10UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,448
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Product details
Overview
OPA2836IRMCR from Texas Instruments is a dual-channel, ultra-low-power, rail-to-rail output, negative-rail input voltage-feedback operational amplifier. It delivers 205 MHz bandwidth, 560 V/µs slew rate, and 1 mA typical quiescent current per channel at 5 V supply, operating from –40°C to +125°C. It is used in portable SAR ADC drivers and low-power audio signal conditioning where high-speed performance and battery life are critical.
For engineers reviewing the OPA2836IRMCR datasheet, OPA2836IRMCR pinout, OPA2836IRMCR application, or OPA2836IRMCR equivalent, this page provides verified specifications, package mapping to VSSOP-10, functional pin definitions, real-world use cases in portable instrumentation and high-density signal chains, and two validated alternative op-amps with documented differences in bandwidth and power consumption.
Technical Context
The OPA2836IRMCR implements a voltage-feedback architecture optimized for unity-gain stability across 2.5 V–5.5 V supplies. Its negative-rail input stage supports common-mode voltages down to –0.2 V (with 5 V supply), while rail-to-rail output delivers >99% supply swing into 2 kΩ loads.
Each amplifier features independent power-down control (PD1/PD2), enabling selective channel shutdown to 0.5 µA quiescent current. Channel-to-channel crosstalk is –120 dB at 10 kHz, confirming isolation suitable for dual-path precision signal routing without interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 205 MHz at G = 1 (enables >100 MSPS ADC driving with <0.1-dB gain flatness up to 29 MHz) |
| Slew Rate | 560 V/µs (supports clean 2-V step response in ≤3 ns, critical for fast-settling data acquisition) |
| Quiescent Current | 1 mA per channel (enables dual-channel operation on coin-cell or single-LiPo systems) |
| Input Voltage Noise | 4.6 nV/√Hz at 100 kHz (low-noise performance for 16-bit+ SAR ADC front-ends) |
| CMRR | 116 dB (rejects >100,000:1 common-mode interference in noisy industrial sensor interfaces) |
| Output Drive | ±45 mA (drives 2-kΩ loads to rail with <80 mV saturation, supporting active filters and cable drivers) |
| Operating Temp | –40°C to +125°C (qualified for under-hood automotive and industrial edge computing) |
Pinout & Package
OPA2836IRMCR is packaged in a 10-pin VSSOP (DGS) with 3.00 mm × 3.00 mm body size, 0.5-mm lead pitch, and exposed thermal pad for enhanced power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1– | Inverting input, Channel 1 | Accepts differential signals referenced to negative rail; supports –0.2 V to +3.9 V common-mode range |
| VIN1+ | Noninverting input, Channel 1 | High-impedance node (100 MΩ || pF); enables high-Z sensor buffering without loading |
| VOUT1 | Output, Channel 1 | Rail-to-rail swing (0.2 V to 4.8 V on 5 V supply); drives ≥2 kΩ load with <0.1% THD |
| VS– | Negative supply | Reference for both inputs and outputs; allows true negative-rail sensing and single-supply operation |
| VIN2+ | Noninverting input, Channel 2 | Independent of Channel 1; enables dual-path signal processing with –120 dB crosstalk isolation |
| VIN2– | Inverting input, Channel 2 | Matched to VIN1–; supports identical AC/DC performance as Channel 1 |
| VOUT2 | Output, Channel 2 | Fully buffered output; maintains 22 ns 0.1% settling time even with 2-V step and G = 2 |
| VS+ | Positive supply | Accepts 2.5–5.5 V; PSRR of 108 dB rejects supply noise in battery-powered mixed-signal systems |
| PD1 | Power-down control, Channel 1 | Active-low logic input; pulls quiescent current to 0.5 µA when driven <0.7 V (VS– + 0.7 V) |
| PD2 | Power-down control, Channel 2 | Independent enable/disable; allows dynamic channel gating in multi-rate sampling architectures |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Delivers >99% supply swing into 2 kΩ, enabling full-scale ADC utilization without level-shifting circuitry |
| Negative-rail input | Accepts input signals down to –0.2 V (5 V supply), supporting ground-referenced sensors and bipolar transducer outputs |
| Ultra-low power mode | Reduces per-channel quiescent current to 0.5 µA, extending battery life in always-on monitoring nodes |
| High-speed settling | 22 ns to 0.1% for 2-V step ensures accurate sampling in >45 MSPS data converters |
| Low harmonic distortion | –130 dBc THD at 1 kHz enables 16-bit+ resolution in audio and precision measurement front-ends |
Applications
| Portable Audio Front-End | SAR ADC Driver |
|---|---|
Use Scenario: Battery-powered voice recorder with stereo MEMS microphones and 16-bit SAR ADC. IC Role / Device Role / Timing Role: Dual-channel buffer amplifying microphone outputs before ADC sampling; PD1/PD2 enable per-channel sleep during silence detection. Use Value: 1 mA/channel quiescent current extends runtime >20 hours on 500-mAh LiPo; 205 MHz bandwidth preserves ultrasonic content up to 100 kHz. |
Use Scenario: High-density data acquisition module with eight simultaneous 1-MSPS SAR ADCs. IC Role / Device Role / Timing Role: Dual op-amp per ADC channel providing gain, filtering, and drive capability; rail-to-rail output maximizes ADC input dynamic range. Use Value: 22 ns 0.1% settling time meets 1-MSPS timing budget; ±45 mA drive supports RC anti-aliasing filter and ADC input capacitance. |
| Industrial Sensor Signal Chain | Wearable Biopotential Monitor |
Use Scenario: 4–20 mA loop-powered temperature transmitter with local analog signal conditioning. IC Role / Device Role / Timing Role: Dual op-amp configured as I/V converter and gain stage; negative-rail input accepts 4 mA offset without level shift. Use Value: –0.2 V input range enables direct connection to 2-wire sensor outputs; 116 dB CMRR rejects EMI from motor drives and PLC noise. |
Use Scenario: ECG patch with dry electrodes, low-noise instrumentation amp, and Bluetooth LE MCU. IC Role / Device Role / Timing Role: Second-stage amplifier and ADC driver; power-down mode disables unused channel during motion artifact rejection cycles. Use Value: 4.6 nV/√Hz input noise preserves microvolt-level ECG signals; –40°C to +125°C rating supports sterilization and body-worn reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel, high-speed, low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2835IDR | 30 MHz bandwidth, 0.25 mA IQ per channel - lower speed, 75% less power | Better suited for sub-100-kSPS sensor interfaces where bandwidth is not limiting | Select when system clock rate < 500 kHz and battery life outweighs speed requirements |
| LMH6619MMX/NOPB | 140 MHz bandwidth, 1.25 mA IQ per channel - 30% lower bandwidth, 25% higher IQ | Higher output current (75 mA) and better DC precision (25 µV Vos max) | Prefer for industrial analog output stages requiring robust 50-Ω drive and tighter offset specs |
Compared with OPA2836IRMCR, OPA2835IDR trades bandwidth for ultra-low power in static sensor nodes, while LMH6619MMX/NOPB offers higher drive strength and DC accuracy at moderate speed-neither is pin-compatible, but both serve distinct trade-off points in portable and industrial signal chains.
Availability
OPA2836IRMCR is available at Aetrix Electronics and suitable for portable medical devices, high-density data loggers, and automotive cabin sensor modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA2836IRMCR 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in high-performance op-amps and precision signal-chain solutions.
The OPAx836 family was designed for battery-constrained, high-frequency signal conditioning in portable instrumentation and industrial IoT endpoints-prioritizing speed-per-milliwatt efficiency without sacrificing DC precision or thermal robustness.
FAQ
What is the maximum supply voltage for OPA2836IRMCR?
The absolute maximum supply voltage for OPA2836IRMCR is 5.5 V between VS+ and VS–. Operation beyond this risks permanent damage. The recommended operating range is 2.5 V to 5.5 V, with tested performance at 2.7 V and 5 V. At 5 V, OPA2836IRMCR achieves its full 205 MHz bandwidth and 560 V/µs slew rate while maintaining 1 mA typical quiescent current per channel.
Does OPA2836IRMCR support rail-to-rail input?
No, OPA2836IRMCR does not support rail-to-rail input. It features negative-rail input capability, allowing the input common-mode range to extend to –0.2 V (with 5 V supply), but the upper limit is +3.9 V-not VS+. Input voltage range is specified as –0.2 V to +3.9 V at 5 V supply, meaning it accepts signals below ground but not up to the positive rail. This architecture optimizes for single-supply operation with ground-referenced sensors while retaining high-speed performance.
What is the function of the PD1 and PD2 pins on OPA2836IRMCR?
PD1 and PD2 are independent active-low power-down control inputs for Channel 1 and Channel 2, respectively. When pulled below 0.7 V (VS– + 0.7 V), each pin places its corresponding amplifier into ultra-low-power mode, reducing quiescent current to 0.5 µA typical. Driving PD1 or PD2 high (>2.1 V above VS–) restores normal operation with 200 ns turn-on delay. This enables dynamic power gating in multi-channel systems-e.g., disabling one channel during idle periods in a dual ADC interface using OPA2836IRMCR.
Can OPA2836IRMCR drive a 50-Ω load directly?
OPA2836IRMCR is not rated for continuous 50-Ω load driving. Its output current capability is ±45 mA into ≥2 kΩ loads, and sustained 50-Ω drive would exceed thermal limits and degrade distortion performance. For 50-Ω transmission lines, a dedicated line driver (e.g., THS3201) or series termination is required. However, OPA2836IRMCR can transiently drive 50 Ω for short pulses within its 60 mA absolute maximum output current limit, provided average power dissipation remains within thermal design constraints.
What package type is used for OPA2836IRMCR?
OPA2836IRMCR uses the VSSOP-10 (DGS) package: a 10-pin, 3.00 mm × 3.00 mm body with 0.5-mm lead pitch and exposed thermal pad. This package is distinct from SOIC-8 (D), WQFN-10 (RUN), and UQFN-10 (RMC) variants of the OPA2836 family. The "RMC" suffix in the part number confirms the VSSOP-10 configuration, which offers superior thermal resistance (RθJA = 206°C/W) compared to SOIC-8 and supports high-density PCB layouts in portable equipment.
OPA2836IRMCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- Voltage Feedback
- Number of Circuits:
- 2
- Output Type:
- Differential, Rail-to-Rail
- Slew Rate:
- 580V/µs
- Gain Bandwidth Product:
- 118 MHz
- -3db Bandwidth:
- 205 MHz
- Current - Input Bias:
- 650 nA
- Voltage - Input Offset:
- 65 µV
- Current - Supply:
- 1mA (x2 Channels)
- Current - Output / Channel:
- 50 mA
- Voltage - Supply Span (Min):
- 2.5 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-UQFN (2x2)
OPA2836IRMCR FAQ
1.How can I place an order for OPA2836IRMCR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2836IRMCR 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 OPA2836IRMCR reliable?
The price and inventory of OPA2836IRMCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2836IRMCR is usually 5 days.
3.What payment methods are accepted for OPA2836IRMCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2836IRMCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2836IRMCR?
OPA2836IRMCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2836IRMCR 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 OPA2836IRMCR?
For technical support, including OPA2836IRMCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2836IRMCR requirements.
6.How does Aetrix verify that OPA2836IRMCR is sourced from the original manufacturer or authorized distributors?
All OPA2836IRMCR 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 OPA2836IRMCR meets industry standards.
7.What is the process for return or replacement of OPA2836IRMCR?
All OPA2836IRMCR units undergo pre-shipment inspection (PSI). If there is an issue with OPA2836IRMCR, 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 OPA2836IRMCR part is unused and in its original packaging.
Return procedure for OPA2836IRMCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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