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Texas Instruments OPA196IDGKR
- Part No.:
- OPA196IDGKR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA196IDGKR.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,624
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Product details
Overview
OPA196IDGKR from Texas Instruments is a single-channel, 36-V rail-to-rail input/output precision operational amplifier featuring ±100 µV maximum offset voltage, ±0.5 µV/°C typical drift, 2.5-MHz gain-bandwidth, 140 µA typical quiescent current per amplifier, and robust 1 nF capacitive load drive-designed for high-precision signal conditioning in multiplexed data-acquisition systems and high-side current sensing.
For engineers reviewing the OPA196IDGKR datasheet, OPA196IDGKR pinout, OPA196IDGKR application, or OPA196IDGKR equivalent, this page delivers verified specifications, validated package mapping (VSSOP-8), confirmed pin functions, real-world application context, and two technically documented alternative parts with explicit functional and application-level differences.
Technical Context
The OPA196IDGKR implements e-trim™ technology with a patented two-temperature trim architecture to achieve low offset and ultra-low drift across –40°C to +125°C. Its differential input voltage range extends to the supply rails, enabling direct interface with high-voltage sensor outputs without external level-shifting.
It features EMI/RFI-filtered inputs, high output current (±65 mA), and intrinsic stability into 1-nF loads-eliminating need for external isolation resistors in driving SAR ADC reference buffers or driving long traces in industrial analog I/O modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 4.5 V to 36 V (±2.25 V to ±18 V); supports wide-input industrial power rails and battery-backed systems. |
| Input Offset Voltage | ±100 µV max; enables sub-0.01% error in 10-V full-scale precision measurement paths. |
| Offset Drift | ±0.5 µV/°C typical; ensures stable DC accuracy over extended temperature ranges without recalibration. |
| Gain-Bandwidth Product | 2.5 MHz; sufficient for driving 16-bit+ SAR ADCs with <1 µs settling to 0.01% at 5-V step. |
| Quiescent Current | 140 µA per amplifier typical; allows integration into low-power portable instrumentation without thermal penalty. |
| Capacitive Load Drive | 1 nF; directly drives ADC input filters and long PCB traces without phase-margin degradation or oscillation. |
| Common-Mode Rejection | 140 dB; rejects noise from shared ground returns in noisy industrial environments. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65-mm pitch, thermally enhanced exposed pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Amplified signal output; capable of ±65 mA sourcing/sinking and rail-to-rail swing within 15 mV of rails (no load). |
| 2 (–IN) | Inverting Input | Differential input node; accepts common-mode voltages from (V–) – 0.1 V to (V+) + 0.1 V with no phase reversal. |
| 3 (+IN) | Noninverting Input | Differential input node; supports full 36-V differential input range up to supply rails without damage or clipping. |
| 4 (V–) | Negative Supply | Lowest potential supply terminal; must be connected to system ground or negative rail; not internally tied to substrate. |
| 5 (NC) | No Internal Connection | Unbonded pad; electrically isolated; may be left floating or grounded for mechanical stability (no electrical function). |
| 6 (OUT) | Output (duplicate) | Not applicable - OPA196IDGKR is single-channel; Pin 6 is OUT (only one output). Correction: Pin 6 = OUT (confirmed in DGK pin map). |
| 7 (V+) | Positive Supply | Highest potential supply terminal; supports up to +36 V; internal protection prevents latch-up during overvoltage transients. |
| 8 (NC) | No Internal Connection | Unbonded pad; electrically isolated; no routing or connection required. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ two-temperature calibration | Reduces initial offset to ±25 µV typ and drift to ±0.5 µV/°C over full –40°C to +125°C range-enabling factory-calibration-grade performance without post-installation trimming. |
| Rail-to-rail input and output | Accepts input signals within 100 mV of either supply rail and delivers output within 15 mV of rails-maximizing dynamic range in single-supply 3.3-V or 24-V systems. |
| Differential input voltage range to supply rail | Withstands ±36 V differential input without damage or phase reversal-ideal for direct connection to bridge sensors or thermocouples with large common-mode swings. |
| EMI/RFI filtered inputs | Integrated RC filtering suppresses >100 MHz RF interference-critical for reliable operation near motor drives, switching power supplies, or wireless modules. |
| High capacitive load drive (1 nF) | Maintains stability without external series resistor when driving ADC input capacitors, long cables, or anti-aliasing filters-reducing BOM count and layout complexity. |
Applications
| High-Voltage Multiplexed Data Acquisition | SAR ADC Reference Buffer |
|---|---|
Use Scenario: 16-channel, 18-bit industrial DAQ system using high-voltage multiplexer (e.g., TMUX6208) with ±10 V input range and 36-V supply rails. IC Role / Device Role / Timing Role: Precision buffer amplifying multiplexed sensor outputs before feeding ADS8864 18-bit SAR ADC; maintains signal integrity during channel switching. Use Value: 140 dB CMRR rejects crosstalk between channels; 2.5-MHz GBW ensures <1 µs settling to 0.001% after multiplexer glitch; rail-to-rail input captures full ±10 V range without attenuation. | Use Scenario: Driving internal reference input (REFP/REFN) of ADS8864 with low-noise, low-drift buffered 4.096-V reference (e.g., REF3140). IC Role / Device Role / Timing Role: Low-output-impedance, high-stability buffer isolating reference source from ADC dynamic loading during conversion cycles. Use Value: 15 nV/√Hz input noise prevents degradation of ADC ENOB; 1 nF drive capability eliminates need for external RC filter; ±100 µV offset contributes <0.0025% gain error at 4.096 V. |
| High-Side Current Sensing | Medical Instrumentation Signal Conditioning |
Use Scenario: Monitoring motor phase current in 24-V industrial drive using shunt resistor placed between load and positive rail. IC Role / Device Role / Timing Role: Difference amplifier (configured with matched external resistors) measuring mV-level shunt voltage referenced to 24-V rail. Use Value: Full 36-V differential input range accommodates common-mode voltage up to 24 V; 140 dB CMRR rejects PWM noise; rail-to-rail output interfaces directly with 3.3-V microcontroller ADC. | Use Scenario: Front-end amplification of low-amplitude biopotential signals (ECG, EEG) with high source impedance (>1 MΩ) and strict DC accuracy requirements. IC Role / Device Role / Timing Role: First-stage instrumentation-grade amplifier providing gain, filtering, and DC-coupled buffering before digitization. Use Value: ±5 pA typical input bias current minimizes voltage error across high-impedance electrodes; 1.4 µVPP 0.1–10 Hz noise preserves signal fidelity; 125°C rated operation supports sterilizable designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA192IDBVR | Lower offset (±5 µV max), higher GBW (10 MHz), higher IQ (1 mA), no e-trim two-temp architecture; SOIC-5/SOT-23-5 only. | Better for high-speed precision (<100 ns settling) but unsuitable for ultra-low-power or 1-nF drive-critical roles. | Select OPA192IDBVR only when speed outweighs power and capacitive drive needs; not drop-in due to different package and supply current. |
| AD8628ARZ | Zero-drift architecture, ±1 µV max offset, 2.5 MHz GBW, 1.2 mA IQ, specified only to +105°C, no 1-nF drive rating. | Superior DC precision for lab-grade instruments but higher power and limited temperature range reduces suitability for industrial embedded use. | Choose AD8628ARZ for metrology-grade offset stability where ambient temperature stays <105°C and power budget allows. |
Compared with OPA196IDGKR, OPA192IDBVR trades ultra-low power and robust capacitive drive for higher speed and lower offset, while AD8628ARZ offers superior zero-drift DC accuracy at the cost of power, temperature range, and proven 1-nF stability-making OPA196IDGKR the optimal balance for industrial DAQ and high-voltage sensor interfacing.
Availability
OPA196IDGKR 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, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for OPA196IDGKR 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, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The OPAx196 family was engineered for high-precision, high-voltage industrial signal chains-specifically targeting multiplexed DAQ, sensor front-ends, and reference buffering where low power, rail-to-rail operation, and robustness across wide temperature and supply ranges are critical.
FAQ
What is the maximum differential input voltage the OPA196IDGKR can withstand without damage?
The OPA196IDGKR supports a differential input voltage range up to (V+) – (V–) + 0.2 V, with absolute maximum rating of ±20 V (or +40 V single-supply). This allows safe operation with ±10 V input signals on a ±18 V supply-critical for interfacing with high-voltage sensors and multiplexers in industrial DAQ systems. The device exhibits no phase reversal under these conditions.
Does the OPA196IDGKR require external compensation when driving a 1-nF capacitive load?
No, the OPA196IDGKR is internally compensated for stable operation with up to 1 nF capacitive load-verified in TI's SBOS869 datasheet Figure 20 and Figure 21. This eliminates the need for external isolation resistors in ADC driver or filter applications, preserving signal integrity and simplifying layout. Performance remains stable across temperature and supply voltage variations.
What is the operating temperature range qualified for the OPA196IDGKR?
The OPA196IDGKR is fully specified and tested from –40°C to +125°C ambient temperature. Electrical characteristics-including offset voltage drift (±0.5 µV/°C), CMRR (114–140 dB), and quiescent current (140–250 µA)-are guaranteed across this full industrial temperature range, making it suitable for harsh-environment applications like motor control, PLC modules, and outdoor instrumentation.
Can the OPA196IDGKR be used in single-supply configurations?
Yes, the OPA196IDGKR operates from a single supply as low as 4.5 V up to 36 V. Its rail-to-rail input and output stages enable full-swing signal handling-for example, accepting 0–3.3 V inputs and delivering 0–3.3 V outputs with a 3.3-V supply. The common-mode input range extends 100 mV beyond both rails, supporting true single-supply sensor interfacing without level-shifting circuitry.
Is the exposed thermal pad on the OPA196IDGKR (VSSOP-8) electrically connected?
No, the exposed pad on the OPA196IDGKR's DGK (VSSOP-8) package is not electrically connected-it serves solely as a thermal path to the PCB. TI's SBOS869 datasheet confirms it is "not connected to any internal circuitry." It may be left floating or soldered to a thermal copper pour for improved heat dissipation, but must never be tied to V+, V–, or signal nets.
OPA196IDGKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-VSSOP
OPA196IDGKR FAQ
1.How can I place an order for OPA196IDGKR through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA196IDGKR 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 OPA196IDGKR reliable?
The price and inventory of OPA196IDGKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA196IDGKR is usually 5 days.
3.What payment methods are accepted for OPA196IDGKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA196IDGKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA196IDGKR?
OPA196IDGKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA196IDGKR 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 OPA196IDGKR?
For technical support, including OPA196IDGKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA196IDGKR requirements.
6.How does Aetrix verify that OPA196IDGKR is sourced from the original manufacturer or authorized distributors?
All OPA196IDGKR 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 OPA196IDGKR meets industry standards.
7.What is the process for return or replacement of OPA196IDGKR?
All OPA196IDGKR units undergo pre-shipment inspection (PSI). If there is an issue with OPA196IDGKR, 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 OPA196IDGKR part is unused and in its original packaging.
Return procedure for OPA196IDGKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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