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Texas Instruments TL032ACD
- Part No.:
- TL032ACD
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL032ACD.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:370
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Product details
Overview
TL032ACD from Texas Instruments is a dual-channel, JFET-input operational amplifier optimized for low-power, low-offset precision analog signal conditioning in industrial and power-conversion systems. It delivers 1.1 MHz unity-gain bandwidth, ±15 V or ±5 V dual-supply operation, 120 dB CMRR, 1.5 mV max input offset voltage (25°C), and 120 dB crosstalk attenuation between channels - enabling accurate differential sensing in solar inverter feedback loops and motor drive current shunt amplifiers.
For engineers reviewing the TL032ACD datasheet, TL032ACD pinout, TL032ACD application, or TL032ACD equivalent, this page provides verified electrical specifications, SOIC-8 package layout, real-world use cases in AC/DC power stages and servo control, and validated alternative parts with documented performance trade-offs for design-in decisions.
Technical Context
The TL032ACD implements a LinCMOS-enhanced FET-input architecture that achieves higher slew rate (2.9 V/μs typ) and bandwidth than TL062 without increasing quiescent current (120–280 μA per amplifier). Its high input impedance (>1 TΩ) and low input bias current (≤200 pA at 25°C) minimize loading on high-impedance sources like piezoelectric sensors or photodiode transimpedance nodes.
Designed for dual-supply operation, it requires careful attention to common-mode input range (−11.5 V to +14 V at ±15 V supplies) and output swing limits (±14.955 V into 10 kΩ). DC biasing is mandatory for single-supply use, and virtual-ground generation (e.g., TI TLE2426) is recommended to maintain linearity and avoid rail saturation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - supports standard industrial dual-rail rails; not rated for single-supply operation without external biasing |
| Input Offset Voltage | Max 1.5 mV at 25°C - enables sub-1% error in 1 V full-scale current-sense amplification |
| Unity-Gain Bandwidth | 1.1 MHz - sufficient for closed-loop control of 50–60 Hz AC motor drives and UPS voltage regulation |
| Slew Rate | 2.9 V/μs (positive), 5.1 V/μs (negative) - handles fast transient recovery in overcurrent protection circuits |
| CMRR | Min 75 dB (±15 V), 94 dB typ - rejects common-mode noise in noisy motor drive environments |
| Crosstalk Attenuation | 120 dB - isolates channel 1 and channel 2 signals in dual-path feedback or differential-to-single-ended conversion |
| Input Bias Current | ≤200 pA at 25°C - preserves accuracy when interfacing with MΩ-range sensor networks or RC filter networks |
Pinout & Package
TL032ACD is supplied in an 8-pin SOIC (D) package measuring 4.9 mm × 6.0 mm, with standard JEDEC MS-012AC footprint and gull-wing leads. Thermal resistance θJA = 86°C/W enables operation up to 70°C ambient without forced cooling in compact PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, channel 1 | Amplified output of first op-amp; drives feedback network or next-stage buffer |
| 1IN– | Inverting Input, channel 1 | High-impedance node for negative feedback configuration; sensitive to PCB leakage |
| 1IN+ | Non-Inverting Input, channel 1 | Reference or signal input; requires matched trace length to 1IN– for EMI rejection |
| VCC– | Power supply negative | Ground reference for dual-supply operation; must be decoupled with 0.1 μF ceramic near pin |
| 2IN+ | Non-Inverting Input, channel 2 | Independent input for second amplifier; no internal coupling to channel 1 |
| 2IN– | Inverting Input, channel 2 | Configurable for gain-setting resistors; shares same process characteristics as channel 1 |
| 2OUT | Output, channel 2 | Second independent output; usable for auxiliary monitoring or redundancy |
| VCC+ | Power supply positive | Positive rail connection; decoupling required to suppress supply-induced distortion |
Key Features
| Feature | Design Value |
|---|---|
| On-chip offset trimming | Reduces initial VIO to ≤1.5 mV (TL032AC), cutting calibration overhead in production test |
| FET input stage | Input resistance >1 TΩ and bias current ≤200 pA enable direct interface with high-Z sensors |
| Low power consumption | 120–280 μA per amplifier allows battery-backed or energy-harvested sensor nodes |
| Enhanced AC performance | 1.1 MHz GBW and 2.9 V/μs slew rate improve transient response vs. TL062 without extra current draw |
| SOIC-8 packaging | Industry-standard 8-pin SOIC footprint ensures drop-in replacement compatibility and automated assembly support |
Applications
| Solar Inverter Feedback | Motor Drive Current Sensing |
|---|---|
Use Scenario: Monitoring DC-link voltage and string current in central solar inverters using precision resistor dividers and shunts. IC Role / Device Role / Timing Role: Dual op-amp configured as differential amplifier (channel 1) and voltage follower/reference buffer (channel 2). Use Value: 120 dB crosstalk prevents channel coupling during rapid MPPT transients; 1.5 mV VIO ensures <0.03% measurement error at 100 V full scale. | Use Scenario: Amplifying millivolt-level shunt voltage in three-phase AC motor drives for field-oriented control (FOC). IC Role / Device Role / Timing Role: High-impedance, low-drift instrumentation amplifier front-end with matched gain paths. Use Value: ≤200 pA input bias current avoids shunt resistor self-heating errors; 1.1 MHz bandwidth supports 20 kHz PWM carrier rejection. |
| Single-Phase Online UPS | Servo Position Loop Conditioning |
Use Scenario: Regulating output voltage and detecting overload conditions in line-interactive UPS units with automatic transfer switching. IC Role / Device Role / Timing Role: Dual-channel comparator and error amplifier in voltage regulation loop and battery charge controller. Use Value: Dual independent amplifiers reduce component count; 75+ dB CMRR rejects triac-switching noise on AC input lines. | Use Scenario: Conditioning resolver or encoder feedback signals in industrial servo drives before ADC sampling. IC Role / Device Role / Timing Role: Low-noise signal conditioning stage for position error computation and velocity filtering. Use Value: 115 nV/√Hz input noise preserves SNR in micro-radian resolution systems; 120 dB isolation prevents cross-talk between position and velocity channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel FET-input op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL062CD | Higher input offset (6 mV max), lower slew rate (3.5 V/μs), no on-chip trimming - consumes same 200 μA but offers less DC precision | Acceptable where cost sensitivity outweighs offset-critical performance; unsuitable for <0.1% accuracy requirements | Choose TL062CD only if legacy design reuse or BOM consolidation justifies 4× higher VIO penalty |
| OPA2134PA | Lower noise (8 nV/√Hz), higher slew rate (20 V/μs), rail-to-rail output - consumes 4 mA per amp, incompatible with micropower designs | Preferred for audio or high-fidelity signal chains; excessive current draw disqualifies it for solar inverter standby modes | Select OPA2134PA only when bandwidth and noise dominate over power budget - not a drop-in replacement |
Compared with TL062CD, TL032ACD delivers 4× better offset accuracy and tighter thermal drift; versus OPA2134PA, it trades 33× lower supply current for reduced speed and noise performance - making TL032ACD optimal for precision, low-power industrial sensing where 1.1 MHz bandwidth suffices.
Availability
TL032ACD is available at Aetrix Electronics and suitable for solar inverter feedback, motor drive current sensing, and single-phase online UPS applications requiring stable component supply across multi-year production cycles.
Supply support for TL032ACD 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 heritage in precision op-amps and industrial-grade signal chain solutions.
The TL03x family was engineered specifically for low-power, high-impedance analog signal conditioning in harsh industrial environments - delivering enhanced DC accuracy and AC response over legacy TL06x while maintaining micropower operation.
FAQ
What is the maximum operating temperature range for TL032ACD?
The TL032ACD is characterized for operation from 0°C to 70°C (C-suffix grade). It meets all electrical specifications across this full industrial temperature range, including input offset voltage drift of 10.8 μV/°C and supply current stability up to 70°C ambient. Operation outside this range is not guaranteed and may degrade CMRR or output swing.
Can TL032ACD operate from a single supply?
No - TL032ACD is designed exclusively for dual-supply operation (±5 V to ±15 V). Single-supply use requires external DC biasing of both inputs to mid-rail and termination of loads to a virtual ground (e.g., TI TLE2426). Without proper biasing, input common-mode range violations and output clipping will occur, compromising linearity and stability.
What is the typical input capacitance of TL032ACD?
The typical input capacitance of TL032ACD is 4 pF per input terminal, measured at 25°C. This low value minimizes phase shift in high-frequency feedback networks and reduces susceptibility to capacitive pickup in noisy industrial environments - critical when driving long traces or high-impedance filters.
How does TL032ACD compare to TL032CD in terms of offset voltage?
TL032ACD specifies a maximum input offset voltage of 1.5 mV at 25°C, whereas TL032CD has a higher limit of 3.5 mV under identical conditions. This 2.3× improvement stems from on-chip laser trimming in the 'A' variant, directly reducing calibration effort and improving accuracy in precision measurement applications like shunt-based current sensing.
Is TL032ACD pin-compatible with TL062CD?
Yes - TL032ACD and TL062CD share identical 8-pin SOIC (D) packaging and pinout: 1OUT, 1IN–, 1IN+, VCC–, 2IN+, 2IN–, 2OUT, VCC+. This allows direct PCB-level substitution in existing TL062 designs, provided system-level validation confirms improved offset, bandwidth, and crosstalk meet updated performance targets.
TL032ACD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- J-FET
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 5.1V/µs
- Gain Bandwidth Product:
- 1.1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 pA
- Voltage - Input Offset:
- 570 µV
- Current - Supply:
- 422µA (x2 Channels)
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TL032ACD FAQ
1.How can I place an order for TL032ACD through Aetrix?
Please submit a Request for Quotation (RFQ) for TL032ACD 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 TL032ACD reliable?
The price and inventory of TL032ACD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL032ACD is usually 5 days.
3.What payment methods are accepted for TL032ACD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL032ACD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL032ACD?
TL032ACD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL032ACD 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 TL032ACD?
For technical support, including TL032ACD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL032ACD requirements.
6.How does Aetrix verify that TL032ACD is sourced from the original manufacturer or authorized distributors?
All TL032ACD 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 TL032ACD meets industry standards.
7.What is the process for return or replacement of TL032ACD?
All TL032ACD units undergo pre-shipment inspection (PSI). If there is an issue with TL032ACD, 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 TL032ACD part is unused and in its original packaging.
Return procedure for TL032ACD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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