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Texas Instruments OPA2196ID
- Part No.:
- OPA2196ID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
OPA2196ID.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:697
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Product details
Overview
OPA2196ID from Texas Instruments is a dual-channel, 36-V rail-to-rail input/output precision operational amplifier featuring ±100 µV maximum input offset voltage, ±0.5 µV/°C typical drift, 2.5-MHz gain-bandwidth, and 140 µA per amplifier quiescent current. It operates from ±2.25 V to ±18 V (or 4.5 V to 36 V single supply) and drives up to 1 nF capacitive loads-enabling high-accuracy signal conditioning in multiplexed data-acquisition systems and high-side current sensing.
For engineers reviewing the OPA2196ID datasheet, OPA2196ID pinout, OPA2196ID application, or OPA2196ID equivalent, key selection considerations include its e-trim™ architecture for low drift over –40°C to +125°C, differential input voltage range extending to the supply rails, high CMRR (140 dB), and robust EMI/RFI filtered inputs for noisy industrial environments.
Technical Context
The OPA2196ID implements a patented two-temperature e-trim™ architecture at package level, minimizing offset error and temperature-induced drift without post-mold calibration degradation. Its front-end uses complementary NCH/PCH input stages enabling full 36-V differential input range-unlike conventional op amps limited by internal protection diodes.
This architecture supports rail-to-rail operation across wide supplies while maintaining low noise (15 nV/√Hz at 1 kHz), high open-loop gain (134 dB), and fast overload recovery (0.4 µs to negative rail). The device integrates slew boost and high-capacitive-load compensation for stable unity-gain performance with 1-nF loads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.25 V to ±18 V (or 4.5 V to 36 V single supply)-supports wide industrial power rails including 24-V systems. |
| Input Offset Voltage (max) | ±100 µV-enables sub-0.01% accuracy in precision gain stages and reference buffers without trimming. |
| Offset Drift (typ) | ±0.5 µV/°C-ensures stable DC performance across extended temperature ranges in uncooled enclosures. |
| Gain-Bandwidth Product | 2.5 MHz-supports accurate amplification of signals up to ~200 kHz at G = 12 without phase margin loss. |
| Quiescent Current | 140 µA per amplifier-allows dual-channel precision amplification in battery-powered or energy-constrained nodes. |
| Capacitive Load Drive | 1 nF-eliminates need for isolation resistors when driving ADC input filters or long PCB traces. |
| CMRR | 140 dB-rejects common-mode noise from motor drives or switching power supplies in industrial I/O modules. |
Pinout & Package
OPA2196ID is housed in an 8-pin SOIC (D package) with 4.90 mm × 3.90 mm body size, rated for operation from –40°C to +125°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Output, Channel A | Amplified output of first op amp; rail-to-rail swing enables direct interface to SAR ADC inputs. |
| 2 (±IN A) | Inverting Input, Channel A | Differential input node; accepts signals up to supply rails-critical for high-voltage sensor interfaces. |
| 3 (+IN A) | Noninverting Input, Channel A | High-impedance input (10¹³ Ω common-mode) for precision voltage sensing or reference buffering. |
| 4 (V–) | Negative Supply | Lowest potential rail; must be connected to system ground or negative supply for bipolar operation. |
| 5 (+IN B) | Noninverting Input, Channel B | Independent second channel input; enables dual-sensor monitoring or active filter topologies. |
| 6 (±IN B) | Inverting Input, Channel B | Second channel inverting node; supports differential configurations like instrumentation amplifiers. |
| 7 (OUT B) | Output, Channel B | Second rail-to-rail output; crosstalk >150 dB at DC ensures independent channel operation. |
| 8 (V+) | Positive Supply | Highest potential rail; supports up to +36 V, enabling direct connection to 24-V industrial buses. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ architecture | Package-level two-temperature trim delivers ±100 µV max offset and ±0.5 µV/°C drift-no external calibration required. |
| Rail-to-rail input & output | Full supply-range common-mode input (V– – 0.1 V to V+ + 0.1 V) and output swing within 15 mV of rails at no load. |
| Differential input voltage range | Extends to full supply rail (V+ – V–), eliminating input clamping diodes and enabling true high-voltage multiplexing. |
| EMI/RFI filtered inputs | Integrated RC filtering suppresses RF interference from switch-mode power supplies or motor drives without external components. |
| High capacitive load drive | Stable operation with 1-nF loads allows direct connection to anti-aliasing filters or long cables without series resistance. |
Applications
| Multiplexed Data-Acquisition Systems | High-Side Current Sensing |
|---|---|
Use Scenario: Simultaneous sampling of multiple 4–20 mA sensor outputs using a single SAR ADC with analog multiplexer. IC Role / Device Role / Timing Role: Dual-channel OPA2196ID buffers and conditions multiplexed inputs-Channel A handles VINP, Channel B handles VINM-with matched gain and offset for differential measurement. Use Value: 150 dB crosstalk and 140 dB CMRR reject channel-to-channel interference and common-mode noise from shared power rails. | Use Scenario: Monitoring motor phase current in a 24-V BLDC drive by measuring voltage across a 10-mΩ shunt placed between high-side FET and bus. IC Role / Device Role / Timing Role: OPA2196ID configured as noninverting amplifier with G = 100 amplifies 100-mV shunt drop to 10 V full-scale for ADC input. Use Value: Rail-to-rail input accepts common-mode voltage up to 24 V, while ±100 µV offset ensures <0.1% current measurement error at 1-A full scale. |
| SAR ADC Reference Buffers | Medical Instrumentation Signal Conditioning |
Use Scenario: Buffering a 4.096-V precision reference (e.g., REF3140) for a 16-bit SAR ADC in test equipment. IC Role / Device Role / Timing Role: OPA2196ID provides low-noise, low-drift unity-gain buffer with 15 nV/√Hz input noise and 140 dB PSRR. Use Value: 140 µA quiescent current minimizes thermal drift in reference path; 1-nF drive capability eliminates need for external isolation resistor. | Use Scenario: Amplifying low-amplitude biopotential signals (ECG, EEG) from dry electrodes in portable diagnostics. IC Role / Device Role / Timing Role: OPA2196ID serves as first-stage instrumentation amplifier input buffer with high ZIN (>10¹³ Ω) and EMI-filtered inputs. Use Value: ±5 pA input bias current prevents electrode polarization; 0.5 µV/°C drift maintains baseline stability during patient-warm-up periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2188IDR | Lower offset (±25 µV typ), higher GBW (2 MHz), but higher IQ (410 µA/channel); no e-trim-laser-trimmed die. | Better DC precision but less suitable for battery-powered or thermally constrained designs due to 3× higher quiescent current. | Select OPA2188IDR only when ultra-low offset dominates over power and thermal budget constraints. |
| AD8628ARZ-REEL7 | Zero-drift architecture, ±1 µV max offset, but narrower supply (±2.7 V to ±5.5 V) and lower capacitive load drive (100 pF). | Not viable for 24-V industrial systems or direct ADC filter driving; limited to low-voltage, ultra-precision lab-grade instruments. | Choose AD8628ARZ-REEL7 only for sub-µV DC-critical applications within 5-V domains where supply headroom is not limiting. |
Compared with OPA2188IDR and AD8628ARZ-REEL7, the OPA2196ID uniquely balances ultra-low drift, 36-V operation, and micropower consumption-making it the only dual-channel option supporting both high-voltage industrial sensors and energy-efficient portable instrumentation.
Availability
OPA2196ID is available at Aetrix Electronics and suitable for multiplexed data-acquisition systems, high-side current sensing, and SAR ADC reference buffering requiring stable component supply across automotive, industrial automation, and medical OEM programs.
Supply support for OPA2196ID 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 delivering analog and embedded processing solutions, with over 90,000 products serving industrial, automotive, and personal electronics markets.
The OPAx196 family was engineered for high-precision, high-voltage signal conditioning in harsh industrial environments-emphasizing low drift, rail-to-rail operation, and robustness against EMI and capacitive loading.
FAQ
What is the maximum supply voltage rating for the OPA2196ID?
The OPA2196ID supports a maximum supply voltage of ±20 V (dual supply) or +40 V (single supply), with recommended operating range from ±2.25 V to ±18 V (or 4.5 V to 36 V). Absolute maximum ratings ensure safe operation under transient overvoltage conditions common in industrial 24-V bus environments, though continuous operation above ±18 V is not specified for parametric performance.
Does the OPA2196ID require external compensation for stability with capacitive loads?
No, the OPA2196ID features integrated high-capacitive-load compensation and is specified to drive up to 1 nF stably in unity-gain configuration without external components. This eliminates the need for isolation resistors when interfacing directly with anti-aliasing filters or long PCB traces-reducing bill-of-materials and layout complexity in data-acquisition designs.
How does the e-trim™ architecture in the OPA2196ID improve long-term stability?
The OPA2196ID uses package-level e-trim™-a two-temperature trim process performed after plastic molding-to minimize offset voltage and drift induced by mechanical stress and thermal hysteresis. Unlike die-level laser trimming, this method compensates for post-assembly shifts, delivering ±100 µV max offset and ±0.5 µV/°C typical drift over –40°C to +125°C without recalibration.
Can the OPA2196ID be used in single-supply configurations with rail-to-rail input?
Yes, the OPA2196ID supports true rail-to-rail input operation from V– – 0.1 V to V+ + 0.1 V, making it fully compatible with single-supply configurations such as 3.3-V, 5-V, or 36-V systems. Its input stage accepts common-mode voltages beyond the rails, enabling direct sensing of signals referenced to ground or high-side potentials without level-shifting circuitry.
What is the typical input bias current of the OPA2196ID, and why does it matter for high-impedance sensors?
The OPA2196ID has a typical input bias current of ±5 pA, critical for preserving signal integrity when interfacing with high-impedance sources like piezoelectric sensors, pH electrodes, or thermocouples. At 1-GΩ source impedance, this bias current introduces only 5-mV error-enabling accurate measurements without guard rings or active guarding techniques.
OPA2196ID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 7V/µs
- Gain Bandwidth Product:
- 2.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 5 pA
- Voltage - Input Offset:
- 25 µV
- Current - Supply:
- 140µA (x2 Channels)
- Current - Output / Channel:
- 65 mA
- 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
OPA2196ID FAQ
1.How can I place an order for OPA2196ID through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2196ID 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 OPA2196ID reliable?
The price and inventory of OPA2196ID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2196ID is usually 5 days.
3.What payment methods are accepted for OPA2196ID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2196ID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2196ID?
OPA2196ID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2196ID 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 OPA2196ID?
For technical support, including OPA2196ID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2196ID requirements.
6.How does Aetrix verify that OPA2196ID is sourced from the original manufacturer or authorized distributors?
All OPA2196ID 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 OPA2196ID meets industry standards.
7.What is the process for return or replacement of OPA2196ID?
All OPA2196ID units undergo pre-shipment inspection (PSI). If there is an issue with OPA2196ID, 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 OPA2196ID part is unused and in its original packaging.
Return procedure for OPA2196ID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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