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Texas Instruments OPA2836IRMCT
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- Part No.:
- OPA2836IRMCT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-UFQFN
- Datasheet:
-
OPA2836IRMCT.pdf
- Description:
- IC OPAMP VFB 2 CIRCUIT 10UQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
OPA2836IRMCT 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 unity-gain 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 - ideal for portable SAR ADC drivers and low-power signal conditioning in space-constrained industrial systems.
For engineers reviewing the OPA2836IRMCT datasheet, OPA2836IRMCT pinout, OPA2836IRMCT application, or OPA2836IRMCT equivalent, key selection criteria include its 205 MHz bandwidth at 1 mA/ch power consumption, rail-to-rail output swing with –0.2 V input capability, and validated performance across extended temperature range without thermal derating.
Technical Context
The OPA2836IRMCT implements a voltage-feedback architecture optimized for high-speed, low-power operation. Its internal design supports stable unity-gain configuration with 205 MHz bandwidth and achieves 22 ns (0.1%) settling time on 2-V step signals, enabled by fast overdrive recovery (60 ns) and low 4.6 nV/√Hz input voltage noise at 100 kHz.
It features independent power-down pins (PD1/PD2) enabling channel-level sleep mode with <1.5 µA quiescent current per disabled amplifier, while maintaining full rail-to-rail output swing (within 20 mV of rails) and 116 dB CMRR - critical for precision DC-coupled gain stages in battery-powered instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 205 MHz at G = 1 - enables accurate amplification of multi-MHz sensor or ADC interface signals without phase loss. |
| Slew Rate | 560 V/µs - supports clean 2-V step reproduction in ≤3 ns, essential for driving fast-switching ADC inputs. |
| Quiescent Current | 1 mA per channel - allows dual-channel high-speed amplification in sub-20-mW total power budget at 5 V. |
| Input Voltage Range | –0.2 V to +3.9 V (5-V supply) - accepts signals below ground, simplifying single-supply interfacing with bipolar sensors. |
| Output Drive | ±45 mA - drives 1-kΩ loads to full rail-to-rail swing, sufficient for direct connection to SAR ADC reference buffers. |
| THD + Noise | –130 dBc THD and –117.6 dBc SNR at 1 kHz - preserves dynamic range in audio and precision measurement front-ends. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial PLC, and downhole sensing applications. |
Pinout & Package
The OPA2836IRMCT is packaged in a 10-pin UQFN (Ultra-Thin Quad Flat No-Lead) with 2.00 mm × 2.00 mm body size and 0.4-mm pitch, optimized for high-density PCB layouts and thermal performance (RθJA = 143.2°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1– | Inverting input, Channel 1 | Differential node for closed-loop feedback; supports –0.2 V common-mode input with 116 dB CMRR. |
| VIN1+ | Non-inverting input, Channel 1 | High-impedance node (100 MΩ || pF) for sensor or DAC interface with minimal loading. |
| VOUT1 | Output, Channel 1 | Rail-to-rail capable (within 20 mV of rails), drives ≥45 mA into resistive loads. |
| PD1 | Power-down control, Channel 1 | Active-low logic input; pulls quiescent current to 0.5 µA when driven ≤0.7 V (VS–). |
| VIN2– | Inverting input, Channel 2 | Independent channel with –120 dB crosstalk at 10 kHz - suitable for dual-path signal chains. |
| VIN2+ | Non-inverting input, Channel 2 | Matched offset drift (±1.1 µV/°C) ensures tracking between channels in differential configurations. |
| VOUT2 | Output, Channel 2 | Fully symmetric to VOUT1; maintains 22 ns 0.1% settling on 2-V steps with identical drive strength. |
| VS+ | Positive supply | Accepts 2.5 V to 5.5 V; PSRR of 108 dB suppresses supply noise coupling into signal path. |
| VS– | Negative supply | Reference for dual-supply operation (±1.25 V to ±2.75 V) or ground in single-supply systems. |
| PD2 | Power-down control, Channel 2 | Independent enable/disable; allows asymmetric power management in mixed-signal SoC interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power / high speed ratio | 205 MHz bandwidth at only 1 mA/ch - sets industry benchmark for portable high-frequency amplifiers. |
| True negative-rail input | Operates with inputs down to –0.2 V (5-V supply), eliminating level-shifting for bipolar transducer outputs. |
| Channel-independent power-down | PD1/PD2 reduce each amplifier's IQ to 0.5 µA without affecting the other channel's bias or output state. |
| Low distortion at high frequency | –85 dBc HD2 and –105 dBc HD3 at 1 MHz - preserves signal integrity in wideband RF sampling front-ends. |
| Extended temperature qualification | Full electrical specs guaranteed from –40°C to +125°C - no derating required for industrial or automotive use. |
Applications
| Portable SAR ADC Driver | Audio ADC Input Buffer |
|---|---|
Use Scenario: Driving 16-bit+ SAR ADCs (e.g., ADS8860) in handheld test equipment with 5-V single supply and tight thermal constraints. IC Role / Device Role / Timing Role: High-fidelity buffer providing fast settling (<25 ns), low THD (–130 dBc), and rail-to-rail output to maximize ADC dynamic range. Use Value: Enables 1 MSPS sampling without aperture jitter degradation or gain error from output saturation. |
Use Scenario: Front-end buffering for stereo audio ADCs (e.g., PCM1865) in battery-powered voice recorders requiring low self-noise. IC Role / Device Role / Timing Role: Low-noise (4.6 nV/√Hz), low-distortion amplifier with 205 MHz bandwidth to preserve transient fidelity in 20 Hz–20 kHz band. Use Value: Delivers >110 dB SNR at line-level inputs while consuming <2.2 mW total for both channels. |
| Low-Power Signal Conditioning | High-Density Industrial Sensor Interface |
Use Scenario: Amplifying millivolt-level thermocouple or strain gauge outputs in wireless sensor nodes powered by coin-cell batteries. IC Role / Device Role / Timing Role: Precision gain stage with ±65 µV max offset and 116 dB CMRR to reject common-mode noise in noisy factory environments. Use Value: Achieves 0.005% gain accuracy over temperature with no external trimming, reducing BOM count. |
Use Scenario: Dual-channel analog front-end for modular PLC I/O cards where board area is limited to <100 mm² per channel. IC Role / Device Role / Timing Role: Space-optimized UQFN-10 amplifier delivering matched performance across channels with <2 mm × 2 mm footprint. Use Value: Replaces two discrete SOT-23 op-amps, saving 42% PCB area while improving thermal coupling and crosstalk rejection. |
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 |
|---|---|---|---|
| OPA2835IDGSR | Lower bandwidth (30 MHz), lower IQ (0.25 mA/ch), same UQFN-10 package. | Better suited for sub-10-MHz sensor signal chains where power is more critical than speed. | Select OPA2835IDGSR when bandwidth demand is <50 MHz and system power budget is <1 mW per channel. |
| LMH6619MMX/NOPB | Higher IQ (1.25 mA/ch), higher noise (10 nV/√Hz), SOIC-8 package, rail-to-rail input/output. | Preferred for legacy designs requiring through-hole compatibility and RRO input for AC-coupled sources. | Choose LMH6619MMX/NOPB only if rail-to-rail input is mandatory and UQFN assembly capability is unavailable. |
Compared with OPA2836IRMCT, OPA2835IDGSR trades 85% bandwidth for 75% lower power, while LMH6619MMX/NOPB offers RRO input at the cost of 117% higher input noise and larger footprint - making OPA2836IRMCT optimal for new high-density, high-speed, battery-sensitive designs.
Availability
OPA2836IRMCT is available at Aetrix Electronics and suitable for portable SAR ADC drivers, audio ADC input buffers, and high-density industrial sensor interfaces requiring stable component supply across automotive, industrial, and medical OEM programs.
Supply support for OPA2836IRMCT 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 OPA2836IRMCT belongs to TI's OPAx836 family of ultra-low-power, high-speed voltage-feedback op-amps, engineered specifically for battery-powered instrumentation, portable test equipment, and space-constrained industrial sensing systems.
FAQ
What is the maximum supply voltage for the OPA2836IRMCT?
The OPA2836IRMCT supports a maximum total supply voltage of 5.5 V across VS+ and VS– terminals. This applies to both single-supply (e.g., VS+ = 5.5 V, VS– = 0 V) and dual-supply (e.g., VS+ = +2.75 V, VS– = –2.75 V) configurations. Exceeding 5.5 V risks permanent damage per absolute maximum ratings, and operation above this limit is not characterized or guaranteed.
Does the OPA2836IRMCT support rail-to-rail input?
No, the OPA2836IRMCT does not support rail-to-rail input. It features negative-rail input capability - allowing the input common-mode range to extend 0.2 V below VS– - but the upper input limit is +3.9 V with a 5-V supply (i.e., 0.1 V below VS+). For true rail-to-rail input, consider alternatives like the OPA2365 or LMH6619, though these differ in power, speed, and noise performance versus the OPA2836IRMCT.
What is the typical power-down current for each channel of the OPA2836IRMCT?
The typical power-down current for each channel of the OPA2836IRMCT is 0.5 µA when the respective PD1 or PD2 pin is driven low (≤0.7 V relative to VS–). This value is specified at TA = 25°C and VS = 5 V, with a maximum of 1.5 µA across the full –40°C to +125°C temperature range. Both channels can be powered down independently without affecting the other.
Can the OPA2836IRMCT drive a 50-Ω load directly?
The OPA2836IRMCT is not designed for direct 50-Ω load driving. Its specified output current is ±45 mA into resistive loads, which corresponds to a minimum load of ~111 Ω at 5 V supply (VOUT = 2.5 V). Driving 50 Ω would require >50 mA and cause output saturation or thermal stress. For 50-Ω transmission lines, use a dedicated line driver (e.g., THS3201) or add an external buffer stage - the OPA2836IRMCT remains optimal for high-impedance ADC or filter interfaces.
Is the OPA2836IRMCT pin-compatible with other OPA2836 variants?
Yes, the OPA2836IRMCT (UQFN-10) shares identical pinout and function mapping with the OPA2836IRMC (UQFN-10) and OPA2836IRUN (WQFN-10) variants - all feature 10-pin layouts with matching VIN1–, VIN1+, VOUT1, PD1, VIN2+, VIN2–, VOUT2, PD2, VS+, and VS– assignments. However, it is not pin-compatible with the SOIC-8 (OPA2836ID) or VSSOP-10 (OPA2836IDGS) packages due to differing pin counts and arrangements.
OPA2836IRMCT 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)
OPA2836IRMCT FAQ
1.How can I place an order for OPA2836IRMCT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2836IRMCT 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 OPA2836IRMCT reliable?
The price and inventory of OPA2836IRMCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2836IRMCT is usually 5 days.
3.What payment methods are accepted for OPA2836IRMCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2836IRMCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2836IRMCT?
OPA2836IRMCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2836IRMCT 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 OPA2836IRMCT?
For technical support, including OPA2836IRMCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2836IRMCT requirements.
6.How does Aetrix verify that OPA2836IRMCT is sourced from the original manufacturer or authorized distributors?
All OPA2836IRMCT 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 OPA2836IRMCT meets industry standards.
7.What is the process for return or replacement of OPA2836IRMCT?
All OPA2836IRMCT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2836IRMCT, 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 OPA2836IRMCT part is unused and in its original packaging.
Return procedure for OPA2836IRMCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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