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Texas Instruments OPA2196IDGKT
- Part No.:
- OPA2196IDGKT
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2196IDGKT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:848
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Product details
Overview
OPA2196IDGKT 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, 140 µA per amplifier quiescent current, and robust 1 nF capacitive load drive-designed for high-accuracy signal conditioning in multiplexed data-acquisition systems.
For engineers reviewing the OPA2196IDGKT datasheet, OPA2196IDGKT pinout, OPA2196IDGKT application, or OPA2196IDGKT equivalent, key selection considerations include its e-trim™ architecture enabling low drift over –40°C to +125°C, differential input voltage range extending to supply rails, and high CMRR (140 dB) critical for precision sensor front-ends and SAR ADC driver stages.
Technical Context
The OPA2196IDGKT implements a patented two-temperature e-trim™ architecture at package level, correcting both initial offset and temperature-induced drift after plastic molding-minimizing errors from transistor mismatch and mechanical stress. Its differential front-end supports full 36-V input voltage swing without phase reversal or clamping diodes.
This dual op amp integrates slew boost and high-capacitive-load compensation circuitry, enabling stable operation with up to 1 nF load while maintaining 7.5 V/µs slew rate (rising) and 0.7 µs 0.01% settling time (2-V step). It operates from ±2.25 V to ±18 V (4.5 V to 36 V) and includes thermal protection triggering at 180°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±2.25 V to ±18 V (4.5 V to 36 V): Enables direct interface with industrial ±15 V, ±12 V, and wide-input-range power supplies. |
| Input Offset Voltage (max) | ±100 µV: Ensures sub-0.01% error in 10-V full-scale precision measurement paths without calibration. |
| Offset Drift (typ) | ±0.5 µV/°C: Maintains <1 µV total drift across –40°C to +125°C, critical for uncalibrated embedded sensor nodes. |
| Gain-Bandwidth Product | 2.5 MHz: Supports stable unity-gain buffering of 100-kHz signals with >60° phase margin into 10-kΩ//100-pF loads. |
| Quiescent Current | 140 µA per amplifier (typ): Allows dual-channel precision amplification in battery-powered DAQ systems with multi-year runtime. |
| CMRR | 140 dB (typ): Rejects common-mode noise from motor drives or long-line sensor cables in industrial environments. |
| Capacitive Load Drive | 1 nF: Directly drives ADC input filters or long PCB traces without external isolation resistors. |
Pinout & Package
DGK package: 8-pin VSSOP (3.00 mm × 3.00 mm), thermally enhanced for high-reliability industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT A | Output, Channel A | Low-impedance rail-to-rail output capable of ±65 mA short-circuit current and 15 mV from rail (no load). |
| 2: ±IN A | Inverting Input, Channel A | Differential input terminal with 10¹³ Ω common-mode impedance and full rail-to-rail common-mode range. |
| 3: +IN A | Noninverting Input, Channel A | High-impedance input (100 MΩ || 1.6 pF) supporting high-Z sensor interfaces like thermocouples or bridge outputs. |
| 4: V– | Negative Supply | Lowest potential supply rail; accepts ground or negative voltage; supports single- or dual-supply configurations. |
| 5: +IN B | Noninverting Input, Channel B | Independent second channel input with identical specs to Channel A-enables dual-sensor conditioning or reference buffering. |
| 6: ±IN B | Inverting Input, Channel B | Second differential input pair; crosstalk >150 dB at DC ensures channel isolation in multiplexed systems. |
| 7: OUT B | Output, Channel B | Fully independent output with same drive strength and rail-to-rail swing as OUT A. |
| 8: V+ | Positive Supply | Highest potential supply rail; supports up to +36 V; enables direct connection to industrial 24-V bus rails. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ package-level trimming | Eliminates post-molding offset drift; achieves ±100 µV max offset and ±0.5 µV/°C drift without laser trimming or wafer-level calibration. |
| Rail-to-rail input and output | Accepts common-mode voltages from V– – 0.1 V to V+ + 0.1 V and swings within 15 mV of either rail-maximizes dynamic range in low-voltage systems. |
| Differential input voltage range to supply rail | Withstands ±36 V differential input without phase reversal or latch-up-enables direct high-side current sensing without attenuators. |
| EMI/RFI filtered inputs | Integrated input filtering suppresses 100-MHz–2-GHz RF interference, reducing measurement noise in noisy factory environments. |
| High capacitive load drive (1 nF) | Stable operation into heavy capacitive loads eliminates need for external series resistors when driving ADC input RC filters or long cables. |
Applications
| Multiplexed Data-Acquisition Systems | High-Precision Comparator |
|---|---|
Use Scenario: Simultaneous sampling of multiple 24-bit delta-sigma ADC channels using analog multiplexers and anti-aliasing filters. IC Role / Device Role / Timing Role: Dual-channel OPA2196IDGKT buffers and conditions multiplexed sensor inputs while driving reference buffers and ADC drivers with matched gain/phase. Use Value: 150 dB inter-channel crosstalk and 0.5 µV/°C drift ensure channel-to-channel gain matching remains <0.005% over temperature-critical for calibrated multichannel instrumentation. | Use Scenario: Zero-crossing detection and threshold comparison for motor phase current monitoring in servo drives. IC Role / Device Role / Timing Role: Precision comparator replacing discrete op-amp + external hysteresis, leveraging rail-to-rail output and low input bias current (±5 pA). Use Value: Sub-100-µV offset and 7.5 V/µs slew rate enable accurate timing of 100-A current zero crossings with <100-ns jitter-reducing torque ripple in closed-loop control. |
| High-Resolution ADC Driver Amplifiers | SAR ADC Reference Buffers |
Use Scenario: Driving the input of 18-bit SAR ADCs (e.g., ADS8864) with fast settling and minimal distortion. IC Role / Device Role / Timing Role: Unity-gain buffer between antialiasing filter and ADC input, providing low output impedance and high THD+N rejection. Use Value: 0.7 µs 0.01% settling time (2-V step) and 0.0012% THD+N at 1 kHz allow full 1 MSPS throughput on 18-bit converters without cycle loss. | Use Scenario: Buffering precision voltage references (e.g., REF3140) for SAR ADC reference inputs in portable test equipment. IC Role / Device Role / Timing Role: Low-noise, low-drift reference follower isolating reference IC from ADC switching currents and board noise. Use Value: 15 nV/√Hz input voltage noise and 140 dB CMRR prevent reference contamination-maintaining effective resolution >17.5 ENOB at 100-kSPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189IDR | Lower offset (±5 µV max), higher GBW (12 MHz), but higher IQ (510 µA/channel); no e-trim architecture. | Better for high-speed precision (<100-ns settling) but less suitable for ultra-low-power battery operation. | Select OPA2189IDR only when speed outweighs quiescent current constraints and thermal drift must be minimized beyond ±0.1 µV/°C. |
| AD8638ARZ-REEL7 | Similar offset (±125 µV max) and drift (±0.3 µV/°C), but lower supply range (±8 V max) and no 1-nF load drive spec. | Limited to ≤16-V systems; requires external isolation for capacitive ADC inputs. | Choose AD8638ARZ-REEL7 only for cost-sensitive, low-voltage (<16 V) designs where thermal performance is secondary to BOM cost. |
Compared with OPA2196IDGKT, OPA2189IDR trades 3.6× higher quiescent current for 4.8× faster bandwidth and tighter offset, while AD8638ARZ-REEL7 offers comparable drift at lower voltage range and reduced capacitive drive capability-making OPA2196IDGKT optimal for wide-supply, low-power, high-stability industrial DAQ.
Availability
OPA2196IDGKT is available at Aetrix Electronics and suitable for multiplexed data-acquisition systems, high-resolution ADC driver amplifiers, and SAR ADC reference buffers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for OPA2196IDGKT 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 company specializing in analog and embedded processing technologies, with leadership in precision amplifiers, data converters, and power management ICs.
The OPAx196 family was designed specifically for high-voltage, low-power, high-accuracy signal conditioning in industrial automation, test equipment, and medical instrumentation-emphasizing e-trim™ stability, rail-to-rail operation, and robust EMI immunity.
FAQ
What is the maximum supply voltage rating for the OPA2196IDGKT?
The OPA2196IDGKT has an absolute maximum supply voltage of ±20 V (or +40 V single supply). Its recommended operating range is ±2.25 V to ±18 V (4.5 V to 36 V), making it compatible with standard industrial 24-V rails and legacy ±15-V systems. Operation beyond ±20 V risks permanent damage per the Absolute Maximum Ratings table in SBOS869.
Does the OPA2196IDGKT support rail-to-rail input and output operation?
Yes, the OPA2196IDGKT supports true rail-to-rail input and output operation. Its common-mode input voltage range extends from (V–) – 0.1 V to (V+) + 0.1 V, and its output swings within 15 mV of either rail under no-load conditions. This capability is confirmed in Section 6.7 of the SBOS869 datasheet and enables full utilization of ADC input ranges in low-voltage systems.
What is the capacitive load drive capability of the OPA2196IDGKT?
The OPA2196IDGKT is specified to drive up to 1 nF capacitive loads stably without external compensation. This is explicitly stated in the Features section and verified in Typical Characteristics (Figure 20–21). The device maintains phase margin and settling performance into such loads-eliminating the need for series isolation resistors when interfacing with ADC input filters or long PCB traces.
How does the e-trim™ architecture improve long-term stability in the OPA2196IDGKT?
The OPA2196IDGKT uses e-trim™-a package-level trimming method performed after plastic molding-to correct input offset and drift induced by mechanical stress and transistor mismatch. Unlike wafer-level trimming, e-trim™ minimizes post-assembly drift, achieving ±100 µV max offset and ±0.5 µV/°C typical drift over –40°C to +125°C, as validated in SBOS869 Sections 6.7 and 7.1.
Is the OPA2196IDGKT pin-compatible with other devices in the OPAx196 family?
Yes, the OPA2196IDGKT in the DGK (VSSOP-8) package shares identical pinout with the OPA196IDGKT (single) and OPA4196IPWR (quad in TSSOP-14 is not pin-compatible, but OPA4196 in SOIC-14 follows same channel mapping logic). Pin Functions Table on page 5 of SBOS869 confirms consistent assignment of +IN A, –IN A, OUT A, V+, V–, +IN B, –IN B, and OUT B across all 8-pin variants.
OPA2196IDGKT 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:
- 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-VSSOP
OPA2196IDGKT FAQ
1.How can I place an order for OPA2196IDGKT through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2196IDGKT 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 OPA2196IDGKT reliable?
The price and inventory of OPA2196IDGKT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2196IDGKT is usually 5 days.
3.What payment methods are accepted for OPA2196IDGKT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2196IDGKT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2196IDGKT?
OPA2196IDGKT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2196IDGKT 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 OPA2196IDGKT?
For technical support, including OPA2196IDGKT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2196IDGKT requirements.
6.How does Aetrix verify that OPA2196IDGKT is sourced from the original manufacturer or authorized distributors?
All OPA2196IDGKT 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 OPA2196IDGKT meets industry standards.
7.What is the process for return or replacement of OPA2196IDGKT?
All OPA2196IDGKT units undergo pre-shipment inspection (PSI). If there is an issue with OPA2196IDGKT, 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 OPA2196IDGKT part is unused and in its original packaging.
Return procedure for OPA2196IDGKT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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