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Texas Instruments OPA196IDGKT
- Part No.:
- OPA196IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA196IDGKT.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:302
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Product details
Overview
OPA196IDGKT from Texas Instruments is a single-channel, 36-V rail-to-rail input/output operational amplifier with e-trim™ precision architecture. It delivers ±100 µV max input offset voltage, ±0.5 µV/°C typical drift, 2.5-MHz gain-bandwidth, 140 µA typical quiescent current per amplifier, and supports ±2.25 V to ±18 V (4.5 V to 36 V) supply operation - enabling high-accuracy signal conditioning in industrial multiplexed data-acquisition systems.
For engineers reviewing the OPA196IDGKT datasheet, OPA196IDGKT pinout, OPA196IDGKT application, or OPA196IDGKT equivalent, key selection criteria include its differential input voltage range extending to the supply rails, 1 nF capacitive load drive capability, EMI/RFI filtered inputs, and robust performance across –40°C to +125°C for high-voltage sensor front-ends and precision ADC driver stages.
Technical Context
The OPA196IDGKT employs a patented two-temperature e-trim architecture at package level to minimize input transistor mismatch and molding-induced errors, achieving low offset and drift over full temperature range. Its input stage eliminates conventional protection diodes while maintaining full 36-V differential input range and fast overload recovery (0.4 µs to negative rail).
It integrates slew boost and high-capacitive-load compensation circuitry, enabling stable operation into 1 nF loads without external isolation resistors. The device operates with rail-to-rail input common-mode range (V– – 0.1 V to V+ + 0.1 V) and delivers ±65 mA output current under ±18 V supply, supporting both high-side and low-side current sensing configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | ±2.25 V to ±18 V (4.5 V to 36 V): Enables direct interface with wide-range industrial sensors and high-voltage rails without level-shifting. |
| Input Offset Voltage | ±100 µV (max): Ensures sub-0.01% error in 10-V full-scale precision measurement paths. |
| Offset Drift | ±0.5 µV/°C (typ): Maintains <1 µV total drift over 85°C ambient variation - critical for uncalibrated field instrumentation. |
| Gain-Bandwidth | 2.5 MHz: Supports stable unity-gain buffering of 100-kHz signals with ≤0.1% gain error and adequate phase margin. |
| Quiescent Current | 140 µA (typ): Allows battery-powered or energy-constrained designs to integrate precision amplification without compromising runtime. |
| Capacitive Load Drive | 1 nF: Eliminates need for series isolation resistor when driving SAR ADC reference inputs or long PCB traces. |
| CMRR | 140 dB (typ): Rejects >100,000:1 common-mode interference - essential for bridge sensor excitation in noisy factory environments. |
Pinout & Package
The OPA196IDGKT is packaged in an 8-pin VSSOP (DGK) with 3.00 mm × 3.00 mm body size and exposed thermal pad. This thermally enhanced package supports continuous operation up to +125°C ambient with RθJA = 180.4°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Amplified signal output capable of ±65 mA sink/source and rail-to-rail swing within 15 mV of rails (no load). |
| 2 (–IN) | Inverting Input | Differential input node with ±5 pA typical bias current and full rail-to-rail common-mode range. |
| 3 (+IN) | Noninverting Input | Differential input node with identical bias and common-mode specifications as –IN; enables precision difference amplification. |
| 4 (V–) | Negative Supply | Lowest potential power rail connection; supports dual-supply (±2.25 V to ±18 V) or single-supply (4.5 V to 36 V) operation. |
| 5 (NC) | No Internal Connection | Unbonded pin; must be left floating or tied to ground only if required by PCB layout for mechanical stability. |
| 6 (NC) | No Internal Connection | Unbonded pin; no electrical function - avoid routing signals or power to this terminal. |
| 7 (V+) | Positive Supply | Highest potential power rail; supplies internal bias and output stage; accepts up to +20 V absolute max rating. |
| 8 (NC) | No Internal Connection | Unbonded pin; electrically isolated - no connection required for functional operation. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ precision architecture | Package-level trimming after molding achieves ±100 µV max offset and ±0.5 µV/°C drift - eliminating post-assembly calibration in production test. |
| Rail-to-rail input and output | Supports signal acquisition from 0 V to full supply range on both inputs and outputs, maximizing dynamic range in single-supply systems. |
| Differential input voltage range to supply rail | Withstands ±36 V differential input without damage or phase reversal - enables direct connection to high-voltage multiplexer outputs. |
| EMI/RFI filtered inputs | Integrated RF filtering suppresses >100 MHz noise coupling, reducing susceptibility in motor-drive or switching-power-supply environments. |
| High capacitive load drive (1 nF) | Stable operation into heavy capacitive loads avoids oscillation in ADC reference buffer or filter applications without added series resistance. |
Applications
| High-Voltage Multiplexed Data Acquisition | SAR ADC Reference Buffer |
|---|---|
Use Scenario: High-density industrial DAQ system using 16-channel analog multiplexer with ±15 V signal range feeding a 16-bit SAR ADC. IC Role / Device Role / Timing Role: OPA196IDGKT buffers and level-shifts multiplexer output to match ADC reference voltage while rejecting crosstalk and EMI. Use Value: 140 dB CMRR and 2.5-MHz GBW ensure <0.001% gain error and <1 µs settling to 0.001%, preserving 16-bit effective resolution. | Use Scenario: Precision 18-bit SAR ADC requiring ultra-low-noise, low-drift reference voltage source with minimal loading effects. IC Role / Device Role / Timing Role: OPA196IDGKT isolates REF3140 reference IC from ADC dynamic current demands and filters supply ripple. Use Value: ±100 µV offset and 15 nV/√Hz noise at 1 kHz maintain reference accuracy better than ±1 LSB over temperature. |
| High-Side Current Sensing | Bridge Sensor Signal Conditioning |
Use Scenario: Motor control inverter monitoring phase current via shunt resistor placed between power rail and load. IC Role / Device Role / Timing Role: OPA196IDGKT configured as difference amplifier measures mV-level drop across shunt at high common-mode voltage (up to +30 V). Use Value: Full 36-V differential input range and 140 dB CMRR enable accurate current measurement with <0.1% error at 30 V CMV. | Use Scenario: Strain gauge or load cell in structural health monitoring system operating in harsh electromagnetic environments. IC Role / Device Role / Timing Role: OPA196IDGKT provides low-noise, low-drift instrumentation amplification with EMI-filtered inputs and rail-to-rail output swing. Use Value: 15 nV/√Hz input voltage noise and ±5 pA bias current preserve microvolt-level bridge output integrity over decades of service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA192IDBVT | Lower offset (±5 µV typ), higher GBW (10 MHz), but higher IQ (1 mA) and no e-trim drift optimization. | Better for high-speed precision filtering; less suitable for battery-powered or thermally constrained systems. | Select OPA192IDBVT only when bandwidth >5 MHz and offset <25 µV are mandatory - not for general-purpose low-power precision use. |
| AD8628ARZ | Zero-drift architecture, ±1 µV max offset, but limited supply (±2.5 V to ±5.5 V) and lower output drive (±20 mA). | Restricted to low-voltage, ultra-low-offset applications; cannot replace OPA196IDGKT in 36-V industrial systems. | Choose AD8628ARZ only for sub-10-V signal chains where zero-drift performance outweighs supply and drive limitations. |
Compared with OPA196IDGKT, OPA192IDBVT trades 7× higher quiescent current for 4× bandwidth and tighter offset, while AD8628ARZ offers superior offset but lacks high-voltage operation and robust output drive - making OPA196IDGKT the optimal balance for 36-V, low-power, precision industrial signal conditioning.
Availability
OPA196IDGKT is available at Aetrix Electronics and suitable for high-voltage multiplexed data acquisition, precision SAR ADC reference buffering, and industrial current sensing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA196IDGKT 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 for industrial, automotive, and communications markets.
The OPAx196 family was designed specifically for high-precision, high-voltage industrial signal conditioning - targeting multiplexed DAQ, sensor front-ends, and reference buffering where low drift, rail-to-rail operation, and robust EMI immunity are mandatory.
FAQ
What is the maximum supply voltage for OPA196IDGKT?
The OPA196IDGKT supports a maximum supply voltage of ±20 V (or +40 V single supply), with recommended operation from ±2.25 V to ±18 V (4.5 V to 36 V). Exceeding ±20 V risks permanent damage per Absolute Maximum Ratings. Operation at 36 V total supply is standard and fully characterized across temperature for all key parameters including offset, drift, and CMRR.
Does OPA196IDGKT require external compensation for stability?
No, the OPA196IDGKT is internally compensated for unity-gain stability and drives up to 1 nF capacitive loads without external components. Its integrated high-capacitive-load compensation and slew boost circuitry eliminate the need for series isolation resistors in ADC reference buffer or filter applications - verified across all supply voltages and temperatures in the official SBOS869 datasheet.
Can OPA196IDGKT operate with a single 5-V supply?
Yes, the OPA196IDGKT operates with a single 5-V supply (V+ = 5 V, V– = 0 V), meeting all recommended conditions: supply range includes 4.5 V to 36 V. Rail-to-rail input and output allow full utilization of the 0 V to 5 V range, and key specs like 140 µA quiescent current and 15 nV/√Hz noise remain valid - confirmed in Section 6.8 of the SBOS869 datasheet.
What is the thermal resistance (RθJA) of the OPA196IDGKT in VSSOP-8 package?
The OPA196IDGKT in DGK (VSSOP-8) package has a junction-to-ambient thermal resistance (RθJA) of 180.4°C/W, as specified in Section 6.4 of the SBOS869 datasheet. This value assumes standard JEDEC 2S2P board conditions; actual thermal performance improves with PCB copper area and thermal vias beneath the exposed pad.
Is OPA196IDGKT pin-compatible with other members of the OPAx196 family?
No, the OPA196IDGKT (single-channel, 8-pin VSSOP) is not pin-compatible with OPA2196 (dual) or OPA4196 (quad) variants. While all share identical electrical characteristics and pin functions per channel, their pinouts differ: OPA196IDGKT uses pins 1–4 and 7–8 for OUT, –IN, +IN, V–, V+, respectively, with three NC pins; dual and quad versions allocate dedicated pins for additional channels and share supply pins differently.
OPA196IDGKT 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
OPA196IDGKT FAQ
1.How can I place an order for OPA196IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA196IDGKT 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 OPA196IDGKT reliable?
The price and inventory of OPA196IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA196IDGKT is usually 5 days.
3.What payment methods are accepted for OPA196IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA196IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA196IDGKT?
OPA196IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA196IDGKT 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 OPA196IDGKT?
For technical support, including OPA196IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA196IDGKT requirements.
6.How does Aetrix verify that OPA196IDGKT is sourced from the original manufacturer or authorized distributors?
All OPA196IDGKT 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 OPA196IDGKT meets industry standards.
7.What is the process for return or replacement of OPA196IDGKT?
All OPA196IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA196IDGKT, 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 OPA196IDGKT part is unused and in its original packaging.
Return procedure for OPA196IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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