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Texas Instruments OPA2364IDRG4
- Part No.:
- OPA2364IDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2364IDRG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,122
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Product details
Overview
OPA2364IDRG4 from Texas Instruments is a dual, rail-to-rail input/output CMOS operational amplifier optimized for 1.8-V to 5.5-V single-supply operation. It delivers 7-MHz gain-bandwidth, 5-V/µs slew rate, 90-dB typical CMRR, and 500-µV maximum input offset voltage - enabling high-fidelity signal conditioning in battery-powered sensor interfaces and microphone preamplifiers.
For engineers reviewing the OPA2364IDRG4 datasheet, OPA2364IDRG4 pinout, OPA2364IDRG4 application, or OPA2364IDRG4 equivalent, this page provides verified package mapping (SOIC-8), confirmed dual-channel rail-to-rail I/O behavior, validated quiescent current (750 µA/channel max), and real-world design context for low-voltage analog front-ends.
Technical Context
The OPA2364IDRG4 uses a complementary CMOS input stage that eliminates crossover distortion, ensuring monotonic common-mode response and preserving differential linearity when driving SAR or delta-sigma ADCs. Its rail-to-rail input range extends from (V−) − 0.1 V to (V+) + 0.1 V, and output swing reaches within 10 mV of both rails under 10-kΩ load.
No shutdown function is integrated - unlike the OPA2363 family - making OPA2364IDRG4 a dedicated dual op-amp without enable control. It operates across −40°C to +125°C and maintains 86-dB minimum open-loop gain (AOL) over full temperature and supply range (1.8 V to 5.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V single supply - supports direct interface with Li-ion, coin-cell, and 3.3-V logic systems without level-shifting. |
| Gain-Bandwidth Product | 7 MHz - enables stable unity-gain and G = 10 configurations up to ~700 kHz with <1% gain error. |
| Slew Rate | 5 V/µs - supports clean 1-Vpp, 500-kHz sine wave amplification without slew-induced distortion. |
| Input Offset Voltage | ≤500 µV (max) - reduces DC error in precision transducer amplification (e.g., bridge sensors, thermopiles). |
| CMRR | 90 dB (typ), 74 dB (min) - rejects power-supply ripple and common-mode noise in noisy industrial environments. |
| Quiescent Current | 750 µA per channel (max) - allows dual-channel amplification in always-on wearable or IoT nodes with sub-1.5-mA total analog front-end draw. |
| Input Bias Current | ±1 pA (typ) - minimizes voltage error across high-impedance sources like electret microphones or pH electrodes. |
Pinout & Package
OPA2364IDRG4 is housed in an 8-pin SOIC package (body size 4.90 mm × 3.91 mm), rated for −40°C to +125°C operation. Pin assignments are electrically isolated per channel and support independent signal routing.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplifier A output - drives downstream ADC input or filter stage; rail-to-rail swing supports full-scale utilization of 12-bit+ converters. |
| 2 | −IN A | Inverting input, Channel A - used in transimpedance or inverting gain configurations; matched to +IN A for balanced common-mode rejection. |
| 3 | +IN A | Noninverting input, Channel A - accepts high-impedance sensor signals (e.g., microphone bias network); input capacitance ≤3 pF preserves bandwidth. |
| 4 | V− | Negative supply terminal - tied to ground in single-supply designs; serves as reference for input common-mode and output swing limits. |
| 5 | +IN B | Noninverting input, Channel B - enables dual-path signal conditioning (e.g., differential mic pair or dual-sensor monitoring) with matched AC/DC performance. |
| 6 | −IN B | Inverting input, Channel B - symmetric counterpart to Pin 2; supports identical feedback topologies as Channel A without cross-talk penalty. |
| 7 | OUT B | Amplifier B output - independently routable; supports stereo audio preprocessing or redundant sensor signal paths. |
| 8 | V+ | Positive supply terminal - accepts 1.8–5.5 V; PSRR ≥80 dB ensures immunity to digital supply noise coupling into analog signal chain. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O | Input range includes both supply rails; output swings to within 10 mV of V− and V+, maximizing dynamic range in low-voltage systems. |
| No phase reversal | CM input beyond rails does not invert output polarity - prevents latch-up or uncontrolled saturation during power sequencing or fault conditions. |
| Low input bias current | ±1 pA typical - avoids loading of high-Z sources (e.g., piezoelectric sensors, photodiode TIA feedback networks) and preserves signal integrity. |
| Unity-gain stable | Operates without external compensation in G = 1, G = −1, or follower configurations - simplifies layout and reduces BOM count. |
| High CMRR at AC | ≥80 dB up to 10 kHz - suppresses switching noise from adjacent DC/DC converters in mixed-signal PCBs. |
Applications
| Microphone Preamplifier | Bridge Sensor Signal Chain |
|---|---|
|
Use Scenario: Electret condenser microphone biasing and AC-coupled amplification in voice-controlled IoT edge nodes. IC Role / Device Role / Timing Role: Dual-channel op-amp providing gain, DC blocking, and rail-to-rail output drive into 16-bit sigma-delta ADC. Use Value: 500-µV max offset and 7-MHz GBW enable >90-dB SNR at 20-kHz bandwidth without trimming; 750-µA/channel current supports multi-day battery life. |
Use Scenario: Amplification of low-level mV outputs from strain-gauge or load-cell Wheatstone bridges in industrial weighing systems. IC Role / Device Role / Timing Role: Instrumentation-grade dual amplifier implementing differential-to-single-ended conversion and programmable gain stages. Use Value: 90-dB CMRR rejects common-mode noise from 50/60-Hz mains; rail-to-rail output fully utilizes 3.3-V ADC reference without clipping. |
| Portable Medical Sensor Interface | Active Filter for Data Acquisition |
|
Use Scenario: Low-noise amplification of ECG electrode signals in handheld patient monitors operating from coin-cell batteries. IC Role / Device Role / Timing Role: Dual op-amp configured as high-pass filter (lead-lag) and buffer stage before anti-aliasing and digitization. Use Value: 17-nV/√Hz input voltage noise density and ±1-pA bias current minimize thermal and Johnson noise contributions; 1.8-V operation extends runtime. |
Use Scenario: 2nd-order Sallen-Key low-pass filtering prior to 1-MSPS SAR ADC in automated test equipment. IC Role / Device Role / Timing Role: Dual op-amp implementing unity-gain buffer and active filter topology with precise pole placement. Use Value: 7-MHz GBW ensures <0.1% passband gain error up to 100 kHz; 5-V/µs slew rate prevents distortion on fast step inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2365AIDR | Higher GBW (10 MHz), lower noise (4.5 nV/√Hz), but higher IQ (1.6 mA/channel); no extended temp rating beyond +85°C. | Better suited for wideband active filters or high-speed data acquisition where speed/noise dominate over power. | Select OPA2365AIDR only if >7-MHz bandwidth or <10-nV/√Hz noise is required; verify thermal derating for +125°C operation. |
| MCP6022-I/SN | Lower GBW (10 MHz claimed, but 2.8 MHz effective at G=10), higher offset (2.5 mV max), wider supply range (2.7–6.0 V), no 1.8-V capability. | Acceptable for cost-sensitive industrial controls where 1.8-V operation and ultra-low offset are noncritical. | Choose MCP6022-I/SN only when 1.8-V support is unnecessary and budget constraints outweigh precision requirements. |
Compared with OPA2364IDRG4, OPA2365AIDR trades higher power for improved speed and noise floor, while MCP6022-I/SN sacrifices precision and low-voltage operation for broader availability and lower unit cost - making OPA2364IDRG4 the optimal balance for battery-powered, precision, wide-temp analog front-ends.
Availability
OPA2364IDRG4 is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and voice-enabled IoT endpoints requiring stable component supply across extended temperature and long production lifecycles.
Supply support for OPA2364IDRG4 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 precision op-amps and low-power signal-chain solutions.
The OPA2364IDRG4 belongs to TI's OPAx364 family - engineered specifically for rail-to-rail, low-voltage, high-CMRR amplification in space-constrained, battery-operated systems demanding accuracy and reliability from −40°C to +125°C.
FAQ
What is the maximum supply voltage for OPA2364IDRG4?
The OPA2364IDRG4 supports a maximum supply voltage of 5.5 V across V+ and V− terminals. Absolute maximum ratings specify (V+) − (V−) ≤ 5.5 V, with safe operation confirmed from 1.8 V to 5.5 V per the recommended operating conditions. Exceeding 5.5 V risks permanent damage, and operation below 1.8 V may result in degraded CMRR and gain-bandwidth performance.
Does OPA2364IDRG4 include a shutdown pin?
No, OPA2364IDRG4 does not feature a shutdown pin or enable function. It is a dual op-amp without power-management control - unlike the pin-compatible OPA2363 family, which integrates an enable input per channel. For designs requiring standby current <1 µA/channel, OPA2363IDGSR or OPA2363AIDGSR must be selected instead.
What is the input common-mode voltage range of OPA2364IDRG4?
The input common-mode voltage range of OPA2364IDRG4 extends from (V−) − 0.1 V to (V+) + 0.1 V, enabling true rail-to-rail input operation. This specification holds across the full −40°C to +125°C temperature range and 1.8–5.5-V supply span, allowing direct connection to sensors referenced to either supply rail without external level-shifting circuitry.
Can OPA2364IDRG4 drive capacitive loads?
Yes, OPA2364IDRG4 can drive moderate capacitive loads - typical characterization shows stable operation with ≤100 pF directly at the output. For larger loads (e.g., >200 pF), isolation resistance (e.g., 10–50 Ω in series) is recommended to maintain phase margin and prevent peaking or oscillation, as confirmed in Figure 13 of the SBOS259F datasheet.
Is OPA2364IDRG4 unity-gain stable?
Yes, OPA2364IDRG4 is explicitly specified as unity-gain stable in the datasheet. It requires no external compensation when configured as a voltage follower (G = 1), inverting amplifier (G = −1), or any closed-loop gain ≥1. This stability is maintained across the full operating temperature and supply voltage ranges, simplifying design for buffer and gain-stage applications.
OPA2364IDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 5V/µs
- Gain Bandwidth Product:
- 7 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 1 pA
- Voltage - Input Offset:
- 900 µV
- Current - Supply:
- 1.1mA (x2 Channels)
- Current - Output / Channel:
- 85 mA
- Voltage - Supply Span (Min):
- 1.8 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA2364IDRG4 FAQ
1.How can I place an order for OPA2364IDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2364IDRG4 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 OPA2364IDRG4 reliable?
The price and inventory of OPA2364IDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2364IDRG4 is usually 5 days.
3.What payment methods are accepted for OPA2364IDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2364IDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2364IDRG4?
OPA2364IDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2364IDRG4 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 OPA2364IDRG4?
For technical support, including OPA2364IDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2364IDRG4 requirements.
6.How does Aetrix verify that OPA2364IDRG4 is sourced from the original manufacturer or authorized distributors?
All OPA2364IDRG4 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 OPA2364IDRG4 meets industry standards.
7.What is the process for return or replacement of OPA2364IDRG4?
All OPA2364IDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2364IDRG4, 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 OPA2364IDRG4 part is unused and in its original packaging.
Return procedure for OPA2364IDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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