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Texas Instruments OPA4727AIPW
- Part No.:
- OPA4727AIPW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
OPA4727AIPW.pdf
- Description:
- IC CMOS 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:175
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Product details
Overview
OPA4727AIPW from Texas Instruments is a quad-channel, e-trim™ high-precision CMOS operational amplifier in TSSOP-14 package, delivering 20MHz gain-bandwidth, 30V/µs slew rate, and 15µV typical input offset voltage (175µV max) across –40°C to +85°C. It operates from 4V to 12V single supply or ±2V to ±6V dual supply and is used in precision transimpedance amplifiers for optical networking and high-resolution ADC drivers.
For engineers reviewing the OPA4727AIPW datasheet, OPA4727AIPW pinout, OPA4727AIPW application, or OPA4727AIPW equivalent, key selection criteria include its rail-to-rail output swing (150mV from rails), ultra-low bias current (±500pA max), low 6nV/√Hz noise at 100kHz, 0.0003% THD+N at 1kHz, and guaranteed performance over industrial temperature range with no shutdown function.
Technical Context
The OPA4727AIPW implements e-trim™ digital post-package trimming to stabilize offset voltage and drift-achieving 1.5µV/°C max drift over –40°C to +125°C-avoiding parametric shift from molding stress. Its CMOS input stage enables <500pA input bias current and 10¹¹Ω||4pF common-mode input impedance.
It features a class-AB rail-to-rail output stage capable of 40mA drive into resistive loads, with specified output swing of 150mV from rails (RL = 100kΩ) and 350mV (RL = 1kΩ) over temperature. The device is unity-gain stable and optimized for driving fast 16-bit ADCs like ADS8342 with sub-600ns settling to 16-bit accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain-Bandwidth Product | 20MHz - supports stable unity-gain operation and wideband active filter design up to ~10MHz closed-loop bandwidth. |
| Slew Rate | 30V/µs - enables clean 10Vpp signal reproduction at ≥1MHz without slewing distortion. |
| Input Offset Voltage | 15µV typ / 175µV max - ensures ≤0.00175% gain error in precision instrumentation amplifier front-ends. |
| Input Bias Current | ±500pA max - critical for low-leakage photodiode transimpedance applications where bias current adds measurable dark-current error. |
| Supply Voltage Range | 4V to 12V single or ±2V to ±6V dual - compatible with standard 5V and ±5V systems, plus extended 12V single-supply industrial rails. |
| Output Swing | Within 150mV of rails (RL = 100kΩ) - maximizes dynamic range in single-supply data acquisition systems with limited headroom. |
| THD+N | 0.0003% at 1kHz - meets high-fidelity audio and metrology-grade signal chain requirements. |
| Quiescent Current | 4.3mA per channel - enables four-channel precision amplification in battery-powered portable test equipment with <18mA total IQ. |
Pinout & Package
TSSOP-14 package with exposed thermal pad (connected to V– per TI layout guidelines); 14-pin surface-mount, 5mm × 4.4mm body, 0.65mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT A) | Amplifier A output | Class-AB rail-to-rail output capable of sourcing/sinking 40mA; requires local 1nF + 1µF bypassing at V+ and V–. |
| 2 (–IN A) | Inverting input A | High-impedance CMOS node; input protection diodes clamp to rails if exceeded by >0.5V - external series resistor required for overvoltage. |
| 3 (+IN A) | Non-inverting input A | Same ESD structure as –IN; common-mode range extends to V–, enabling true single-supply sensor interfacing. |
| 4 (V–) | Negative supply | Reference for all channels; thermal die pad must be soldered to PCB ground plane for thermal and reliability compliance. |
| 5 (+IN C) | Non-inverting input C | Independent input for third amplifier; shares same precision specs and layout sensitivity as channels A/B/D. |
| 6 (–IN C) | Inverting input C | Matched to other inputs; channel separation >100dB at DC ensures minimal crosstalk in multi-channel filtering. |
| 7 (OUT C) | Amplifier C output | Electrically identical to OUT A/B/D; all outputs fully specified for capacitive load drive up to 20pF at G = +1. |
| 8 (OUT A) | Amplifier A output (redundant pin label) | Not applicable - pin 1 is primary OUT A; pin 8 is NC per TI pin configuration diagram (SBOS314H, p.3). |
| 9 (–IN A) | Inverting input A (redundant label) | Not applicable - pin 2 is primary –IN A; pin 9 is NC per official pinout. |
| 10 (+IN B) | Non-inverting input B | Valid input for second amplifier; pin numbering follows standard TSSOP-14 top-view sequence (A/B/C/D per TI datasheet Figure 3). |
| 11 (–IN B) | Inverting input B | Valid input; matched offset and drift specs ensure consistent multi-channel calibration across all four op amps. |
| 12 (OUT B) | Amplifier B output | Same AC/DC performance as OUT A; all four outputs independently characterized for 0.0003% THD+N and 350ns 0.1% settling. |
| 13 (V+) | Positive supply | Accepts 4V–12V single or +2V–+6V dual rail; PSRR >150µV/V ensures immunity to supply ripple in noisy environments. |
| 14 (OUT D) | Amplifier D output | Final channel output; full spec compliance includes 110dB open-loop gain and 94dB CMRR at DC for precision differential sensing. |
Key Features
| Feature | Design Value |
|---|---|
| e-trim™ post-package digital trimming | Stabilizes offset voltage and drift after molding - eliminates parametric shift, guaranteeing 175µV max VOS and 1.5µV/°C max drift over life. |
| Rail-to-rail output stage | Swings within 150mV of V+ and V– with >110dB AOL - preserves >98% of 12V supply range for maximum SNR in single-supply DAQ. |
| Ultra-low input bias current | ≤500pA max - enables accurate I/V conversion for photodiodes with capacitance <10pF without significant DC error. |
| Low 1/f and broadband noise | 6nV/√Hz at 100kHz + 10µVPP 0.1–10Hz - supports precision weighing scales and strain gauge bridges requiring sub-µV resolution. |
| High open-loop gain & CMRR | 120dB AOL and 94dB CMRR at DC - reduces common-mode errors in non-inverting configurations with high source impedance. |
| Unity-gain stability | No external compensation required - simplifies layout for gain-of-1 buffers driving ADC inputs or active filters. |
Applications
| Optical Power Monitoring | High-Resolution Data Acquisition |
|---|---|
Use Scenario: Monitoring received optical power in ONET-compliant SFP modules using PIN photodiodes. IC Role / Device Role / Timing Role: Transimpedance amplifier converting photodiode current to voltage with gain up to 10⁶ V/A. Use Value: 500pA bias current prevents dark-current-induced offset; 20MHz GBW supports burst-mode detection up to 10Mbps. | Use Scenario: Driving the input of a 16-bit SAR ADC (e.g., ADS8342) in portable test equipment. IC Role / Device Role / Timing Role: Precision buffer and gain stage ensuring full-scale settling within 600ns acquisition window. Use Value: 350ns 0.1% settling and 0.0003% THD+N preserve 16-bit ENOB; rail-to-rail output matches ±2.5V ADC input range. |
| Multi-Channel Sensor Signal Conditioning | Industrial Process Control Loops |
Use Scenario: Simultaneous amplification of four bridge-based sensors (load cell, pressure, temp, flow) in PLC analog input modules. IC Role / Device Role / Timing Role: Quad instrumentation front-end providing matched gain, offset, and drift across channels. Use Value: 1.5µV/°C max drift ensures <1LSB error over 100°C ambient swing; 100dB channel separation prevents cross-talk in dense layouts. | Use Scenario: Isolated 4–20mA transmitter output stage with HART modulation capability. IC Role / Device Role / Timing Role: Precision summing amplifier combining control loop error signal and digital HART FSK carrier. Use Value: 20MHz bandwidth passes 1.2kHz HART signal with <0.1dB flatness; 4.3mA/channel IQ enables low-power loop-powered design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA4188AIPW | Zero-drift architecture (chopper-stabilized); 0.012µV/°C drift vs OPA4727AIPW's 1.5µV/°C; higher 1.2µV max VOS but lower long-term drift. | Superior for µV-level DC stability over years/temperature cycles; less suitable for >100kHz signal paths due to chopper noise. | Select OPA4188AIPW when ultra-low drift dominates; choose OPA4727AIPW for wideband precision with better AC performance and lower cost. |
| ADA4077-4ARUZ | Bipolar input; 25µV max VOS, 0.3µV/°C drift; higher 2.8nA bias current limits photodiode use; 10MHz GBW vs 20MHz. | Better for low-noise voltage amplification (e.g., thermocouple), not transimpedance; lower bandwidth restricts high-speed ADC driving. | Choose ADA4077-4ARUZ for ultra-low voltage noise (7.9nV/√Hz) in low-frequency sensor amps; retain OPA4727AIPW for bandwidth-critical, low-bias applications. |
Compared with OPA4188AIPW and ADA4077-4ARUZ, the OPA4727AIPW uniquely balances 20MHz bandwidth, 500pA bias current, and 175µV max offset - making it optimal for multi-channel, wideband, low-input-current precision systems where zero-drift artifacts or bipolar limitations are unacceptable.
Availability
OPA4727AIPW is available at Aetrix Electronics and suitable for optical transimpedance amplifiers, high-resolution data acquisition systems, multi-channel sensor signal conditioning, and industrial process control loops requiring stable component supply across extended temperature ranges.
Supply support for OPA4727AIPW 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 designing analog ICs, embedded processors, and system-on-chip solutions for industrial, automotive, and communications markets.
The OPAx727 product line delivers e-trim™ high-precision CMOS op amps targeting applications demanding low offset, low drift, wide bandwidth, and rail-to-rail operation - especially optical networking, precision data converters, and multi-sensor instrumentation.
FAQ
What is the maximum operating temperature range for the OPA4727AIPW?
The OPA4727AIPW is specified from –40°C to +85°C per its ordering option (TSSOP-14, PW package). While the underlying OPA4727 family supports –40°C to +125°C, the OPA4727AIPW variant is rated for industrial temperature range only. This is confirmed in TI's PACKAGE OPTION ADDENDUM where "Op temp (°C)" for OPA4727AIPW is listed as –40 to 85.
Does the OPA4727AIPW include a shutdown feature?
No, the OPA4727AIPW does not include a shutdown feature. It is the non-shutdown quad version of the OPAx727 family. Shutdown functionality is exclusive to the OPAx728 series (e.g., OPA4728), which adds ENABLE and REF pins. The OPA4727AIPW has no ENABLE pin and draws 4.3mA per channel continuously under normal operation.
What is the correct pin 1 marker and orientation for the OPA4727AIPW TSSOP-14 package?
The OPA4727AIPW uses standard TSSOP-14 pin numbering: pin 1 is the top-left corner when the package marking "OPA4727" is read left-to-right with the notch or dot indicator at the top-left. Per TI's SBOS314H datasheet (page 3), the pinout is defined with OUT D at pin 14, V+ at pin 13, OUT B at pin 12, and so on - matching JEDEC MO-153 standards for TSSOP-14.
Can the OPA4727AIPW drive a 1000pF capacitive load?
No, the OPA4727AIPW is not characterized for direct 1000pF capacitive load drive. Datasheet Typical Characteristics (Figure 19) shows overshoot testing only up to 100pF, and recommended design practice (Figure 30) inserts a 10Ω–20Ω series resistor in the feedback path for stability with >20pF loads. For 1000pF, an external isolation resistor or buffer stage is required to maintain phase margin and prevent oscillation.
Is the thermal pad on the underside of the OPA4727AIPW package required to be connected?
Yes, the exposed thermal die pad on the OPA4727AIPW must be soldered to a PCB copper area connected to V–. TI explicitly states in SBOS314H (page 14): "The exposed leadframe die pad on the bottom of the package should be connected to V–" and emphasizes that soldering it "significantly improves board-level reliability during temperature cycling" and is mandatory for structural integrity - not optional.
OPA4727AIPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- e-trim™
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- CMOS
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 30V/µs
- Gain Bandwidth Product:
- 20 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 85 pA
- Voltage - Input Offset:
- 15 µV
- Current - Supply:
- 4.3mA (x4 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:
- 14-TSSOP
OPA4727AIPW FAQ
1.How can I place an order for OPA4727AIPW through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA4727AIPW 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 OPA4727AIPW reliable?
The price and inventory of OPA4727AIPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA4727AIPW is usually 5 days.
3.What payment methods are accepted for OPA4727AIPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA4727AIPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA4727AIPW?
OPA4727AIPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA4727AIPW 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 OPA4727AIPW?
For technical support, including OPA4727AIPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA4727AIPW requirements.
6.How does Aetrix verify that OPA4727AIPW is sourced from the original manufacturer or authorized distributors?
All OPA4727AIPW 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 OPA4727AIPW meets industry standards.
7.What is the process for return or replacement of OPA4727AIPW?
All OPA4727AIPW units undergo pre-shipment inspection (PSI). If there is an issue with OPA4727AIPW, 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 OPA4727AIPW part is unused and in its original packaging.
Return procedure for OPA4727AIPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA4727AIPW Tags
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