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Texas Instruments OPA2726AIDGSTG4
- Part No.:
- OPA2726AIDGSTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
OPA2726AIDGSTG4.pdf
- Description:
- IC CMOS 2 CIRCUIT 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,899
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Product details
Overview
OPA2726AIDGSTG4 from Texas Instruments is a dual-channel, rail-to-rail output operational amplifier with shutdown capability, designed for high-precision, high-speed signal conditioning in 16-bit data acquisition systems. It delivers 20MHz gain-bandwidth, 30V/µs slew rate, 6nV/√Hz input voltage noise at 100kHz, 0.0003% THD+N at 1kHz, and operates from ±2V to ±6V or +4V to +12V supplies - enabling fast settling into ADC inputs such as the ADS8342.
For engineers reviewing the OPA2726AIDGSTG4 datasheet, OPA2726AIDGSTG4 pinout, OPA2726AIDGSTG4 application, or OPA2726AIDGSTG4 equivalent, key selection criteria include its dual-channel shutdown control referenced to DGND, 150mV rail-to-rail output swing under light load, low 200pA max input bias current, and guaranteed −40°C to +125°C operation in MSOP-10 packaging.
Technical Context
The OPA2726AIDGSTG4 uses a proprietary 12V analog CMOS process to achieve simultaneous high speed (20MHz GBW), low noise (6nV/√Hz), and precision DC performance (3mV max VOS, 4µV/°C drift). Its patented output stage enables rail-to-rail swing while maintaining >110dB open-loop gain at 100kΩ loads.
Shutdown is implemented via an enable pin referenced to DGND, requiring >VDGND + 2V to activate and
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 20MHz - supports stable unity-gain operation and drives 16-bit ADCs within 450ns settling time (0.01%). |
| Slew Rate | 30V/µs - enables clean amplification of fast transient signals without distortion in active filters or I/V converters. |
| Input Voltage Noise | 6nV/√Hz at 100kHz - critical for low-noise transimpedance amplifiers in optical networking applications. |
| THD+N | 0.0003% at 1kHz - ensures high-fidelity signal integrity in portable audio and test equipment front-ends. |
| Supply Range | +4V to +12V or ±2V to ±6V - allows flexible single- or dual-supply deployment in industrial and communications systems. |
| Quiescent Current | 5.5mA/ch max - balances performance and power in battery-sensitive portable instrumentation. |
| Shutdown Current | 6µA/ch - reduces system standby power by >99% in multi-channel sensor interfaces with intermittent sampling. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial PLC, and base station environments. |
Pinout & Package
OPA2726AIDGSTG4 is housed in a 10-pin MSOP (DGS) package with exposed thermal pad, optimized for space-constrained PCB layouts and thermal performance (θJA = 150°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - V+ | Positive supply rail | Accepts +4V to +12V (single) or +2V to +6V (dual); bypass with 1nF ceramic + 1µF tantalum. |
| 2 - OUT B | Channel B output | Rail-to-rail swing: ≤175mV from rails at 100kΩ load; ≥40mA drive capability. |
| 3 - −IN B | Channel B inverting input | High-impedance node (10¹¹Ω || 4pF); protected by ESD diodes clamped to rails. |
| 4 - +IN B | Channel B non-inverting input | Common-mode range includes ground; bias current <200pA enables photodiode I/V conversion. |
| 5 - Enable | Shutdown control input | CMOS-compatible; referenced to DGND (Pin 10); activates when >VDGND + 2V. |
| 6 - OUT A | Channel A output | Independent output with identical rail-to-rail performance and load drive as OUT B. |
| 7 - −IN A | Channel A inverting input | Electrically isolated from Channel B; supports dual independent signal paths. |
| 8 - +IN A | Channel A non-inverting input | Matches +IN B specs; enables differential or single-ended configurations per channel. |
| 9 - V− | Negative supply rail | Accepts ground (single-supply) or −2V to −6V (dual); must be bypassed identically to V+. |
| 10 - DGND | Enable reference voltage | Reference point for Enable logic; may be tied to system ground in dual-supply designs. |
Key Features
| Feature | Design Value |
|---|---|
| Fast 16-bit settling | 450ns to 0.01% for 5V step - meets timing budget of 250kSPS ADCs like ADS8342. |
| Rail-to-rail output | Swings within 175mV of rails at 100kΩ - maximizes dynamic range in low-voltage systems. |
| Low input bias current | <200pA - minimizes error in high-impedance transimpedance amplifiers for optical monitoring. |
| Ultra-low THD+N | 0.0003% at 1kHz - preserves signal fidelity in high-end audio and precision test equipment. |
| Shutdown with reference pin | DGND-referenced enable eliminates level-shifting circuitry in dual-supply systems. |
| High PSRR/CMRR | ≥100dB PSRR and ≥88dB CMRR - rejects supply and common-mode noise in noisy industrial environments. |
Applications
| Optical Networking Transimpedance Amplifier | A/D Converter Buffer |
|---|---|
Use Scenario: Converting photocurrent from PIN photodiodes in 10Gbps ONET receivers. IC Role / Device Role / Timing Role: Dual-channel transimpedance amplifier with one channel dedicated to signal path and second to reference or monitoring. Use Value: 200pA input bias and 6nV/√Hz noise enable detection of weak optical signals while maintaining >100dB dynamic range. | Use Scenario: Driving the analog input of the ADS8342 16-bit, 250kSPS parallel-output ADC. IC Role / Device Role / Timing Role: Precision buffer isolating ADC input capacitance and charge injection during sample-and-hold acquisition. Use Value: 450ns 0.01% settling ensures full 16-bit accuracy within the ADC's 600ns acquisition window. |
| Portable Audio Line Driver | Process Control Signal Conditioning |
Use Scenario: Low-distortion line-level output stage in battery-powered DAC-based audio players. IC Role / Device Role / Timing Role: Dual-channel output driver delivering balanced left/right signals with minimal crosstalk. Use Value: 0.0003% THD+N and rail-to-rail swing preserve audio clarity across 2.5V–5V supply ranges. | Use Scenario: Isolating and amplifying 4–20mA loop sensor outputs in industrial PLC analog input modules. IC Role / Device Role / Timing Role: Dual-channel I/V converter and filter driver operating over extended temperature range. Use Value: −40°C to +125°C rating and 125°C/W thermal resistance ensure reliability in uncooled control cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed, low-noise op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2725AIDGKR | No shutdown function; identical GBW, noise, and VOS specs; same MSOP-8 package (8-pin vs 10-pin). | Not suitable where power cycling or channel gating is required; lower pin count simplifies layout. | Select when shutdown is unnecessary and board space is constrained - no DGND or Enable pins needed. |
| OPA2836IRUNT | Higher 200MHz GBW and 425V/µs slew rate; higher 10.8nV/√Hz noise at 100kHz; 1.2mA/ch quiescent current. | Better for >10MHz signal chains but less optimal for precision DC-coupled transimpedance or audio. | Select when bandwidth dominates over noise and DC precision - e.g., wideband RF IF buffering. |
Compared with OPA2725AIDGKR and OPA2836IRUNT, the OPA2726AIDGSTG4 uniquely combines dual-channel shutdown, 6nV/√Hz noise, and 20MHz GBW in a thermally enhanced MSOP-10, making it optimal for power-aware, high-fidelity sensor and data acquisition systems.
Availability
OPA2726AIDGSTG4 is available at Aetrix Electronics and suitable for optical networking transceivers, 16-bit data acquisition systems, portable audio line drivers, and industrial process control modules requiring stable component supply across extended temperature ranges.
Supply support for OPA2726AIDGSTG4 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 innovation in precision amplifiers and data converters.
The OPA725/726 family was engineered for high-speed, low-noise signal conditioning in 16-bit measurement systems - targeting optical networking, test equipment, and high-fidelity audio where settling time, noise, and rail-to-rail output are critical.
FAQ
What is the maximum capacitive load the OPA2726AIDGSTG4 can drive stably in unity-gain configuration?
The OPA2726AIDGSTG4 remains stable driving up to 20pF in unity-gain configuration without external compensation. For larger loads, a 10Ω–20Ω series resistor inside the feedback loop (between output and inverting input) improves phase margin and reduces ringing while preserving DC accuracy - as validated in TI's SBOS278B datasheet Figure 3.
Does the OPA2726AIDGSTG4 support single-supply operation, and what is the minimum supply voltage?
Yes, the OPA2726AIDGSTG4 supports true single-supply operation from +4V to +12V. Its input common-mode range includes ground, and rail-to-rail output enables full-swing signal handling down to 4V - verified across −40°C to +125°C per Electrical Characteristics Table on page 4 of SBOS278B.
How does the DGND pin function in dual-supply applications for the OPA2726AIDGSTG4?
In dual-supply setups, the DGND pin (Pin 10) serves as the reference voltage for the Enable input. It can be tied directly to system ground, eliminating level-shifting circuitry - allowing standard CMOS logic (e.g., 0V/5V) to directly control shutdown. The amplifier activates when Enable exceeds DGND + 2V and shuts down below DGND + 0.8V.
What is the typical input bias current of the OPA2726AIDGSTG4, and why is it important for transimpedance applications?
The OPA2726AIDGSTG4 has a typical input bias current of 30pA and a maximum of 200pA over temperature. This ultra-low value minimizes offset error and dark-current-induced drift in photodiode transimpedance amplifiers - especially critical in high-gain (>1MΩ) configurations used in optical power monitoring and fiber-optic receivers.
Is the OPA2726AIDGSTG4 pin-compatible with other devices in the OPA725/726 family?
No - the OPA2726AIDGSTG4 uses a 10-pin MSOP (DGS) package with dedicated Enable and DGND pins, unlike the 8-pin MSOP-8 (DGK) used by OPA2725/OPA2726 variants without shutdown. Pin mapping differs significantly; PCB layout must be designed specifically for the DGS footprint and 10-pin signal assignment.
OPA2726AIDGSTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- CMOS
- Number of Circuits:
- 2
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 30V/µs
- Gain Bandwidth Product:
- 20 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 pA
- Voltage - Input Offset:
- 1.5 mV
- Current - Supply:
- 4.3mA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3.5 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
OPA2726AIDGSTG4 FAQ
1.How can I place an order for OPA2726AIDGSTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA2726AIDGSTG4 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 OPA2726AIDGSTG4 reliable?
The price and inventory of OPA2726AIDGSTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA2726AIDGSTG4 is usually 5 days.
3.What payment methods are accepted for OPA2726AIDGSTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA2726AIDGSTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA2726AIDGSTG4?
OPA2726AIDGSTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA2726AIDGSTG4 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 OPA2726AIDGSTG4?
For technical support, including OPA2726AIDGSTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA2726AIDGSTG4 requirements.
6.How does Aetrix verify that OPA2726AIDGSTG4 is sourced from the original manufacturer or authorized distributors?
All OPA2726AIDGSTG4 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 OPA2726AIDGSTG4 meets industry standards.
7.What is the process for return or replacement of OPA2726AIDGSTG4?
All OPA2726AIDGSTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA2726AIDGSTG4, 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 OPA2726AIDGSTG4 part is unused and in its original packaging.
Return procedure for OPA2726AIDGSTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA2726AIDGSTG4 Tags
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