My Inquiry
My Account
Texas Instruments OPA735AIDBVTG4
- Part No.:
- OPA735AIDBVTG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
OPA735AIDBVTG4.pdf
- Description:
- IC OPAMP ZER-DRIFT 1CIRC SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,014
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
OPA735AIDBVTG4 from Texas Instruments is a single, zero-drift CMOS operational amplifier in SOT-23-5 package, delivering 5µV max offset voltage, 0.05µV/°C max drift, and 750µA max quiescent current across 2.7V–12V supply range. It enables high-precision signal conditioning in battery-powered instrumentation and transducer interfaces where rail-to-rail output swing (within 50mV of rails) and low input bias current (200pA max) are critical.
For engineers reviewing the OPA735AIDBVTG4 datasheet, OPA735AIDBVTG4 pinout, OPA735AIDBVTG4 application, or OPA735AIDBVTG4 equivalent, key selection criteria include guaranteed offset stability over temperature, auto-zero architecture for long-term dc accuracy, micro-size packaging for space-constrained PCBs, and compatibility with single-supply sensor front-ends requiring >115dB CMRR and 1.6MHz gain-bandwidth.
Technical Context
The OPA735AIDBVTG4 employs a time-continuous 1.6MHz main amplifier with proprietary auto-zero correction every 100µs to achieve near-zero drift and sub-5µV offset. Its input stage uses CMOS technology to deliver 200pA max input bias current and rail-to-rail output swing within 50mV of supply rails.
It operates from −40°C to +85°C with 2.7V–12V single-supply or ±1.35V–±6V dual-supply support, features 115dB min CMRR and 130dB min open-loop gain, and includes internal ESD protection rated at 2000V HBM - distinguishing it from non-zero-drift op amps in precision measurement chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Offset Voltage | 5µV (max) - ensures ≤0.005mV error in 1V full-scale systems without calibration. |
| Drift vs Temperature | 0.05µV/°C (max) - guarantees <0.5µV total offset shift over 85°C operating range. |
| Quiescent Current | 750µA (max) - supports >100-hour operation on 75mAh coin cell in handheld test equipment. |
| Input Bias Current | 200pA (max) - minimizes voltage error across high-impedance sources like thermistors or piezoresistive bridges. |
| Supply Range | 2.7V to 12V - enables direct interface with Li-ion (3.0–4.2V), 5V logic, and 9V battery systems. |
| Gain-Bandwidth Product | 1.6MHz - supports stable unity-gain operation and 1kHz closed-loop bandwidth with 10kΩ/1nF filters. |
| Output Swing | Within 50mV of rails - delivers full dynamic range when driving ADC reference buffers or low-voltage comparators. |
Pinout & Package
SOT-23-5 package (DBV), 1.45mm max height, JEDEC MO-178 compliant; footprint compatible with standard SOT-23 pick-and-place tooling and reflow profiles (MSL Level-2-260°C-1 year).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V−) | Negative supply terminal | Reference for all internal circuitry; must be connected to ground or negative rail - not left floating. |
| 2 (+IN) | Non-inverting input | High-impedance CMOS node; requires matched source impedance to −IN to minimize clock feedthrough. |
| 3 (−IN) | Inverting input | High-impedance CMOS node; differential input voltage range extends from (V−) − 0.1V to (V+) − 1.5V. |
| 4 (OUT) | Amplifier output | Rail-to-rail capable; drives ≥10kΩ load while maintaining 50mV headroom to each rail. |
| 5 (V+) | Positive supply terminal | Accepts 2.7V–12V; requires local 0.1µF ceramic decoupling capacitor placed within 2mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-zero architecture | Continuous 100µs correction cycle eliminates long-term drift and aging effects in medical sensor amplifiers. |
| Rail-to-rail output | Swings within 50mV of V+ and V− - preserves full ADC input range in 3.3V data acquisition systems. |
| Low input bias current | 200pA max enables accurate amplification of signals from high-Z sources like pH electrodes or thermopiles. |
| Single-supply optimization | Specified from 2.7V - operates directly from LiFePO₄ cells or regulated 3.3V supplies without level-shifting. |
| ESD robustness | 2000V HBM rating - withstands handling in uncontrolled assembly environments without special precautions. |
Applications
| Transducer Signal Conditioning | Medical Instrumentation |
|---|---|
Use Scenario: Amplifying mV-level outputs from load cells, strain gauges, or pressure sensors in electronic scales. IC Role / Device Role / Timing Role: Precision DC-coupled gain stage with ultra-low offset to preserve resolution in 24-bit sigma-delta ADC front-ends. Use Value: 5µV offset enables ≤0.01% full-scale error in 50mV span transducers without factory trimming. |
Use Scenario: Front-end amplification for ECG, EEG, or blood glucose meter analog signal paths. IC Role / Device Role / Timing Role: Low-noise, low-drift buffer between electrode interface and anti-alias filter. Use Value: 0.05µV/°C drift prevents baseline wander during 30-minute clinical measurements at ambient temperature shifts. |
| Battery-Powered Test Equipment | Temperature Measurement Systems |
Use Scenario: Portable multimeters and handheld oscilloscope probes requiring microamp-level standby power. IC Role / Device Role / Timing Role: Core amplifier in autoranging voltage/current measurement circuits with programmable gain. Use Value: 750µA quiescent current allows >200 hours of operation on two AA alkaline cells in sleep mode. |
Use Scenario: Cold-junction compensation and linearization in thermocouple-based industrial temperature controllers. IC Role / Device Role / Timing Role: Precision voltage follower for RTD or thermistor bridge excitation and sensing. Use Value: 200pA input bias current avoids self-heating errors in 10kΩ NTC thermistors at 25°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Lower quiescent current (17µA), same 5µV offset but 0.1µV/°C drift (2× higher than OPA735AIDBVTG4). | Better suited for ultra-low-power wake-up circuits; less stable over wide temperature swings. | Select when battery life dominates over thermal stability - e.g., wireless sensor nodes with infrequent sampling. |
| LTC2050CS5#TRMPBF | Higher offset drift (0.03µV/°C typ, no max spec), wider supply range (1.8V–18V), but 1.1mA IQ (48% higher). | Supports lower-voltage microcontrollers (1.8V I/O) but increases thermal load in sealed enclosures. | Choose when extended supply flexibility is required and board space allows SO-8 footprint. |
Compared with OPA333AIDBVR and LTC2050CS5#TRMPBF, the OPA735AIDBVTG4 offers the lowest guaranteed drift specification (0.05µV/°C max) in SOT-23-5, making it optimal for applications where absolute dc accuracy over temperature is non-negotiable - such as calibrated laboratory instruments and Class I medical devices.
Availability
OPA735AIDBVTG4 is available at Aetrix Electronics and suitable for transducer signal conditioning, medical instrumentation, and battery-powered test equipment requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for OPA735AIDBVTG4 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 headquartered in Dallas, Texas, specializing in analog and embedded processing technologies with over 50 years of innovation in precision amplifiers and data converters.
The OPA735AIDBVTG4 belongs to TI's Zerø-Drift Series, designed specifically for high-accuracy, low-drift applications in sensor signal chains, medical diagnostics, and portable instrumentation where traditional op amps fail to meet dc stability requirements.
FAQ
What is the maximum allowable supply voltage for the OPA735AIDBVTG4?
The OPA735AIDBVTG4 has an absolute maximum supply voltage of +13.2V. Operation above this rating risks permanent damage. The recommended operating range is +2.7V to +12V for single-supply use, or ±1.35V to ±6V for dual-supply configurations. Exceeding +12V reduces long-term reliability even if below the absolute maximum limit.
Does the OPA735AIDBVTG4 include a shutdown function?
No, the OPA735AIDBVTG4 is the non-shutdown version of the family. Shutdown capability is exclusive to the OPA734 series (e.g., OPA734AIDBVT), which uses a sixth pin for enable control. The OPA735AIDBVTG4 has five pins and no enable functionality - power must be cycled externally to reduce current draw.
What is the typical input voltage noise of the OPA735AIDBVTG4 at 1kHz?
The OPA735AIDBVTG4 has a typical input voltage noise density of 135nV/√Hz at 1kHz. This value is confirmed in the Electrical Characteristics table under "Noise" parameters and reflects its suitability for low-frequency precision applications where 1/f noise dominates, such as thermocouple amplification and strain gauge readouts.
Can the OPA735AIDBVTG4 drive capacitive loads?
Yes, the OPA735AIDBVTG4 can drive capacitive loads up to 1000pF with controlled overshoot (<10%), as shown in Typical Characteristics Figure 7. For loads >100pF, adding a small series resistor (e.g., 10Ω–50Ω) between the output and capacitive node improves stability without compromising dc accuracy.
Is the OPA735AIDBVTG4 RoHS-compliant and lead-free?
Yes, the OPA735AIDBVTG4 is RoHS-compliant and lead-free, with "Green (RoHS & no Sb/Br)" eco plan designation and "NIPDAU" lead finish. It meets JEDEC MSL Level-2-260°C-1 year moisture sensitivity requirements and is qualified for lead-free reflow soldering per IPC/JEDEC J-STD-020.
OPA735AIDBVTG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Amplifier Type:
- Zero-Drift
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.5V/µs
- Gain Bandwidth Product:
- 1.6 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 100 pA
- Voltage - Input Offset:
- 1 µV
- Current - Supply:
- 600µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 12 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
OPA735AIDBVTG4 FAQ
1.How can I place an order for OPA735AIDBVTG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for OPA735AIDBVTG4 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 OPA735AIDBVTG4 reliable?
The price and inventory of OPA735AIDBVTG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for OPA735AIDBVTG4 is usually 5 days.
3.What payment methods are accepted for OPA735AIDBVTG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for OPA735AIDBVTG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for OPA735AIDBVTG4?
OPA735AIDBVTG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your OPA735AIDBVTG4 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 OPA735AIDBVTG4?
For technical support, including OPA735AIDBVTG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your OPA735AIDBVTG4 requirements.
6.How does Aetrix verify that OPA735AIDBVTG4 is sourced from the original manufacturer or authorized distributors?
All OPA735AIDBVTG4 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 OPA735AIDBVTG4 meets industry standards.
7.What is the process for return or replacement of OPA735AIDBVTG4?
All OPA735AIDBVTG4 units undergo pre-shipment inspection (PSI). If there is an issue with OPA735AIDBVTG4, 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 OPA735AIDBVTG4 part is unused and in its original packaging.
Return procedure for OPA735AIDBVTG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
OPA735AIDBVTG4 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
