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Texas Instruments OPA196IDR
- Part No.:
- OPA196IDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA196IDR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,251
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Product details
Overview
OPA196IDR from Texas Instruments is a single-channel, 36-V rail-to-rail input/output operational amplifier with ±100 µV maximum offset voltage, ±0.5 µV/°C typical drift, and 140 µA typical quiescent current per amplifier-designed for high-precision signal conditioning in multiplexed data-acquisition systems and high-side current sensing.
For engineers reviewing the OPA196IDR datasheet, OPA196IDR pinout, OPA196IDR application, or OPA196IDR equivalent, this page delivers verified specifications, package mapping to SOIC-8, confirmed pin functions, real-world application context, and two validated alternative parts with documented technical and application differences.
Technical Context
The OPA196IDR employs e-trim™ technology with a patented two-temperature trim architecture to achieve low offset (±25 µV typical) and ultra-low drift across –40°C to +125°C. Its differential input voltage range extends to the supply rails, enabling direct interfacing with high-voltage sensor outputs without external level-shifting.
It integrates EMI/RFI-filtered inputs, supports up to 1 nF capacitive load drive, and delivers ±65 mA output current-making it suitable for driving SAR ADC reference buffers and high-impedance analog front-ends in industrial measurement equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 36 V (single-supply) or ±2.25 V to ±18 V (dual-supply)-supports wide industrial bus voltages including 24-V systems. |
| Input Offset Voltage | ±100 µV (max), ±25 µV (typ)-enables sub-0.01% accuracy in precision gain stages and bridge sensor amplifiers. |
| Offset Drift | ±0.5 µV/°C (typ)-ensures stable DC performance over temperature in unregulated environments. |
| GBW | 2.5 MHz (at ±18 V)-sufficient for settling 16-bit SAR ADC drivers within 1 µs at 0.01% accuracy. |
| Quiescent Current | 140 µA per amplifier (typ)-enables low-power operation in battery-backed or energy-constrained modules. |
| CMRR | 140 dB (typ, ±18 V)-rejects common-mode noise in noisy industrial settings such as motor drives and PLC I/O. |
| Output Drive | ±65 mA short-circuit current-drives heavy loads like reference buffers and active filters without external boost. |
Pinout & Package
OPA196IDR is packaged in an 8-pin SOIC (D package), body size 4.90 mm × 3.90 mm, with industry-standard pinout and no internal connections on pins 1, 5, and 8.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN | Noninverting input | High-impedance node (10¹³ Ω || 6.4 pF) accepting rail-to-rail common-mode signals up to V+ + 0.1 V. |
| –IN | Inverting input | Differential input with full 36-V range-no clamping diodes required; immune to phase reversal during overvoltage. |
| OUT | Amplifier output | Rail-to-rail capable output delivering ±65 mA; stable with ≥1 nF capacitive loads without isolation resistor. |
| V+ | Positive supply | Highest potential supply rail; supports up to +36 V; powers internal e-trim circuitry and output stage. |
| V– | Negative supply | Lowest potential supply rail; supports down to –18 V or ground in single-supply mode; referenced for bias networks. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ two-temperature calibration | Reduces initial offset to ±25 µV typical and drift to ±0.5 µV/°C-eliminates need for system-level trimming in field-deployed equipment. |
| Rail-to-rail input and output | Enables full dynamic range utilization in 3.3-V microcontroller interfaces and 24-V industrial sensors without level shifters. |
| Differential input voltage range = supply rail | Accepts VINP–VINM up to 36 V-directly conditions high-side current-sense signals without attenuators or isolation. |
| EMI/RFI-filtered inputs | Integrated RC filtering suppresses >100-MHz RF interference-critical for EMC-compliant designs in motor control cabinets. |
| 1 nF capacitive load drive | Stable operation into ADC input capacitance or long PCB traces-avoids external compensation in data-acquisition front-ends. |
Applications
| High-Voltage Multiplexed Data Acquisition | SAR ADC Reference Buffer |
|---|---|
|
Use Scenario: 16-bit, 1-MSPS multiplexed DAQ system sampling thermocouples, RTDs, and bridge sensors across ±10 V input range. IC Role / Device Role / Timing Role: Precision gain stage and anti-aliasing filter driver before multiplexer; maintains DC accuracy across channel switching. Use Value: ±100 µV offset and 140 dB CMRR preserve measurement integrity despite shared ground noise and supply ripple. |
Use Scenario: Driving REF+ and REF– inputs of 18-bit SAR ADC (e.g., ADS8864) with low-noise, low-drift reference voltage. IC Role / Device Role / Timing Role: Low-output-impedance buffer isolating reference source from ADC dynamic current demands during conversion. Use Value: 15 nV/√Hz noise at 1 kHz and 2.5-MHz GBW ensure <0.001% THD+N and fast settling (<1 µs) for high-resolution digitization. |
| High-Side Current Sensing | Medical Instrumentation Signal Chain |
|
Use Scenario: Monitoring motor phase current in 24-V BLDC drive using shunt resistor placed between power rail and load. IC Role / Device Role / Timing Role: Difference amplifier with G = 20, rejecting common-mode voltage up to 24 V while amplifying mV-level shunt drop. Use Value: Full 36-V differential input range eliminates level-shifting ICs; ±0.5 µV/°C drift ensures thermal stability across enclosure temperature swings. |
Use Scenario: Front-end amplification for ECG electrode signals in portable patient monitors requiring low power and high DC accuracy. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with ultra-low bias current (±5 pA) minimizing electrode polarization error. Use Value: 5 pA input bias current prevents DC offset buildup on high-impedance dry electrodes; 140 µA IQ enables multi-day battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA189IDBVR | Lower offset (±1 µV max), higher IQ (1.3 mA), 10-MHz GBW-requires more power and board area. | Better for metrology-grade calibration systems; unsuitable for battery-powered or space-constrained designs. | Select OPA189IDBVR only when sub-ppm offset stability outweighs power and cost constraints. |
| AD8628ARZ | Similar offset (±10 µV max) but narrower supply (±2.7 V to ±5.5 V); lower drive (±30 mA); no rail-to-rail input. | Limited to low-voltage sensor nodes (e.g., 3.3-V IoT devices); cannot interface directly with 24-V industrial buses. | Choose AD8628ARZ only for compact, low-voltage, low-power applications where 36-V capability is unnecessary. |
Compared with OPA196IDR, OPA189IDBVR trades 10× lower offset for 9× higher quiescent current and reduced supply flexibility, while AD8628ARZ sacrifices high-voltage operation and rail-to-rail input to achieve lower cost and smaller footprint in low-voltage domains.
Availability
OPA196IDR is available at Aetrix Electronics and suitable for high-precision data acquisition, industrial current sensing, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA196IDR 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 industrial signal chain solutions.
The OPAx196 family was designed specifically for high-voltage, low-power, high-accuracy industrial sensing and data acquisition-addressing needs in programmable logic controllers, test equipment, and medical diagnostics.
FAQ
What is the maximum supply voltage for OPA196IDR?
The OPA196IDR supports a total supply voltage range of 4.5 V to 36 V (single-supply) or ±2.25 V to ±18 V (dual-supply). Absolute maximum ratings allow ±20 V (or +40 V single-supply), but operation beyond ±18 V is not characterized and may compromise performance or reliability. Always refer to the recommended operating conditions in the official OPA196IDR datasheet for design validation.
Does OPA196IDR support rail-to-rail input with full differential voltage range?
Yes, OPA196IDR supports rail-to-rail input common-mode voltage (VCM from V– – 0.1 V to V+ + 0.1 V) and has a differential input voltage range equal to the supply rails (up to 36 V). This allows direct connection to high-side shunt resistors or multiplexed sensor arrays without external attenuation or level-shifting circuitry-confirmed in Section 6.7 of the OPA196IDR datasheet.
Can OPA196IDR drive a 1-nF capacitive load stably?
Yes, OPA196IDR is specified to drive up to 1 nF capacitive loads without oscillation or excessive overshoot, as verified in Figure 20 and Figure 21 of the OPA196IDR datasheet. This capability eliminates the need for series isolation resistors when buffering SAR ADC inputs or long PCB traces-reducing component count and preserving signal fidelity.
What is the typical quiescent current of OPA196IDR at room temperature?
The typical quiescent current of OPA196IDR is 140 µA per amplifier at TA = 25°C and VS = ±18 V, with a maximum of 200 µA across the full operating range. This ultra-low IQ enables use in always-on industrial sensors and portable medical devices where power budget is constrained-verified in Section 6.7 Electrical Characteristics of the OPA196IDR datasheet.
Is OPA196IDR pin-compatible with other members of the OPAx196 family?
No-OPA196IDR (single-channel, SOIC-8) is not pin-compatible with OPA2196 (dual) or OPA4196 (quad), as their pinouts differ significantly (e.g., OPA2196 uses pins 3/2/1/7/8/4 for +IN/–IN/OUT/V+/V–/OUT, while OPA196IDR uses pins 3/2/6/7/4). Board layout must be tailored to the specific channel count and package; no mechanical or electrical interchangeability exists between OPA196IDR and multi-channel variants.
OPA196IDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- 2.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 pA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 140µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
OPA196IDR FAQ
1.How can I place an order for OPA196IDR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA196IDR 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 OPA196IDR reliable?
The price and inventory of OPA196IDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA196IDR is usually 5 days.
3.What payment methods are accepted for OPA196IDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA196IDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA196IDR?
OPA196IDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA196IDR 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 OPA196IDR?
For technical support, including OPA196IDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA196IDR requirements.
6.How does Aetrix verify that OPA196IDR is sourced from the original manufacturer or authorized distributors?
All OPA196IDR 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 OPA196IDR meets industry standards.
7.What is the process for return or replacement of OPA196IDR?
All OPA196IDR units undergo pre-shipment inspection (PSI). If there is an issue with OPA196IDR, 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 OPA196IDR part is unused and in its original packaging.
Return procedure for OPA196IDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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