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Texas Instruments TL032CDR
- Part No.:
- TL032CDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TL032CDR.pdf
- Description:
- IC OPAMP JFET 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:28,283
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Product details
Overview
TL032CDR from Texas Instruments is a dual-channel, JFET-input operational amplifier optimized for low-power, low-offset precision applications in industrial and energy 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 high-accuracy signal conditioning in solar inverters and motor drive feedback loops.
For engineers reviewing the TL032CDR datasheet, TL032CDR pinout, TL032CDR application, or TL032CDR equivalent, this device is selected for micropower FET-input performance where high input impedance (>1 TΩ), low input bias current (<200 pA), and stable DC accuracy across temperature are critical - especially when upgrading legacy TL062 designs without increasing supply current.
Technical Context
The TL032CDR uses Texas Instruments' enhanced LinCMOS™ FET process to achieve improved AC response over TL06x while maintaining sub-250 μA per amplifier supply current. Its dual-amplifier architecture supports independent channel operation with 120 dB inter-channel crosstalk suppression, making it suitable for multi-loop control circuits requiring isolation between signal paths.
Designed explicitly for dual-supply use, the device specifies common-mode input range from –11.5 V to +14 V at ±15 V supplies and output swing within 50 mV of rails into 10 kΩ. Single-supply operation requires external DC biasing and virtual-ground generation (e.g., TI TLE2426) due to lack of rail-to-rail input/output capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - supports standard industrial dual-rail power domains without level-shifting circuitry |
| Input Offset Voltage | Max 1.5 mV at 25°C - enables precise DC-coupled amplification in sensor front-ends and current-sense circuits |
| Unity-Gain Bandwidth | 1.1 MHz - sufficient for anti-aliasing, loop compensation, and medium-speed signal conditioning up to ~100 kHz |
| Common-Mode Rejection | Min 75 dB (typ. 94 dB) - rejects noise coupled equally to both inputs in noisy industrial environments |
| Supply Current per Amp | Max 280 μA at ±15 V - allows battery-backed or energy-harvested systems to integrate two precision amps within <600 μA total |
| Input Bias Current | Max 200 pA at 25°C - preserves signal integrity when interfacing with high-impedance sources like piezoelectric sensors |
| Crosstalk Attenuation | 120 dB - ensures channel independence in dual-path monitoring (e.g., phase A/B current sensing) |
Pinout & Package
TL032CDR is housed in an 8-pin SOIC (D package), 4.9 mm × 6.0 mm body size, with exposed pad not present. Pin functions are fully defined per TI SLOS180D Rev. April 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OUT | Output, channel 1 | Amplified output signal for first op-amp; drives loads ≥10 kΩ to maintain specified swing and linearity |
| 1IN– | Inverting Input, channel 1 | High-impedance (≥1 TΩ) node for feedback network connection and signal inversion |
| 1IN+ | Non-Inverting Input, channel 1 | High-impedance node for reference or sensor signal injection; common-mode range limited by supply rails |
| VCC– | Power supply negative | Negative rail connection; must be decoupled locally with ≥0.1 μF ceramic capacitor |
| 2IN+ | Non-Inverting Input, channel 2 | Independent high-Z input for second signal path; no internal coupling to channel 1 |
| 2IN– | Inverting Input, channel 2 | Independent high-Z input for second feedback path; shares no internal nodes with channel 1 |
| 2OUT | Output, channel 2 | Second independent output; 120 dB isolation from 1OUT prevents cross-modulation in multi-channel systems |
| VCC+ | Power supply positive | Positive rail connection; requires local decoupling; maximum rating ±18 V absolute |
Key Features
| Feature | Design Value |
|---|---|
| On-chip offset-voltage trimming | Reduces initial VIO to ≤1.5 mV (TL032C), improving system calibration time and reducing need for external nulling |
| FET input stage | Input resistance >10¹² Ω and bias current <200 pA enable direct interface with megohm-level source impedances |
| Enhanced slew rate | 2.9 V/μs (positive), 5.1 V/μs (negative) at ±15 V - supports faster transient response than TL062 without extra power |
| Temperature-stable performance | αVIO ≤11.5 μV/°C (TL032C) ensures minimal drift over 0°C–70°C operating range |
| Dual-channel integration | Two matched amplifiers in one SOIC-8 reduce PCB area and component count vs. discrete TL031 pairs |
Applications
| Solar Inverter String Monitoring | AC Motor Drive Current Sensing |
|---|---|
|
Use Scenario: Measuring DC-link voltage and string-level current in photovoltaic central inverters under variable irradiance and temperature. IC Role / Device Role / Timing Role: Precision differential amplifier for shunt-based current measurement and high-impedance buffer for voltage divider outputs. Use Value: 120 dB crosstalk and 1.5 mV VIO ensure accurate simultaneous acquisition of phase currents without mutual interference or offset-induced error accumulation. |
Use Scenario: Closed-loop torque and speed control in industrial AC drives using isolated current transformers and shunt resistors. IC Role / Device Role / Timing Role: Dual-channel signal conditioner: one amp for current feedback amplification, the other for voltage feedback scaling and offset correction. Use Value: Matched dual topology eliminates inter-channel gain/offset mismatch; low 250 μA per amp enables thermal management in compact drive modules. |
| Single-Phase Online UPS Feedback | Industrial Sensor Signal Conditioning |
|
Use Scenario: Real-time regulation of output sine wave amplitude and frequency during battery backup mode in line-interactive UPS units. IC Role / Device Role / Timing Role: Dual op-amp implementing PID compensator and waveform reconstruction integrator in analog control loop. Use Value: 1.1 MHz bandwidth and 60° phase margin support stable 50/60 Hz loop compensation; low ICC extends runtime in battery-limited operation. |
Use Scenario: Amplifying low-level signals from RTDs, thermocouples, and strain gauges in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: High-Z instrumentation amplifier front-end stage with programmable gain and offset adjustment. Use Value: FET input preserves signal fidelity from high-output-impedance sensors; on-chip trimming reduces factory calibration steps and improves long-term stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual FET-input operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL062CDR | Higher input offset (15 mV max), lower CMRR (70 dB min), 3× higher input bias current (1 nA) | Acceptable only in non-critical AC-coupled or high-gain AC applications; unsuitable for precision DC sensing | Select TL032CDR when VIO, CMRR, or input impedance requirements exceed TL062CDR capabilities |
| TLC272CDR | Wider supply range (3–16 V single or ±8 V dual), rail-to-rail output, but higher ICC (1.4 mA per amp) | Better suited for single-supply systems with limited headroom; less optimal for ultra-low-power dual-rail designs | Choose TLC272CDR if rail-to-rail output swing or wider VCC flexibility is required, accepting higher quiescent current |
Compared with TL062CDR, TL032CDR provides 10× lower input offset and 20× lower input bias current for precision DC signal chains; compared with TLC272CDR, it consumes <20% the supply current but lacks rail-to-rail output - making TL032CDR optimal for dual-supply, micropower, high-impedance applications where output swing margins permit.
Availability
TL032CDR is available at Aetrix Electronics and suitable for solar inverter string monitoring, AC motor drive current sensing, and single-phase online UPS feedback requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TL032CDR 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, embedded processing, and connectivity technologies, with decades of experience in precision amplifiers and industrial-grade ICs.
The TL03x family was engineered to upgrade TL06x designs with tighter DC specs and improved AC performance at identical power levels - targeting solar, motor control, and UPS applications demanding reliability and low drift over temperature.
FAQ
What is the maximum operating temperature range for TL032CDR?
The TL032CDR is characterized for operation from 0°C to 70°C (C-suffix grade). It meets all electrical specifications across this full range, including input offset voltage drift ≤11.5 μV/°C and supply current ≤280 μA per amplifier at ±15 V. Operation outside this range is not guaranteed and may degrade performance or reliability.
Can TL032CDR operate from a single supply?
TL032CDR is designed for dual-supply operation and does not support true single-supply functionality. When used with a single rail, external DC biasing of inputs and a virtual-ground reference (e.g., TI TLE2426) are mandatory to keep inputs and outputs within common-mode and output swing limits - otherwise, clipping or phase reversal may occur.
What is the typical input capacitance of TL032CDR?
The TL032CDR has a typical input capacitance of 4 pF per input terminal, as specified in the TI SLOS180D datasheet Section 5.4. This low value minimizes high-frequency phase shift in high-impedance feedback networks and supports stable operation with capacitive sources up to several hundred picofarads when properly compensated.
How does TL032CDR compare to TL032IDR in terms of temperature range?
TL032CDR is rated for 0°C to 70°C operation, while TL032IDR is specified for –40°C to 85°C. The I-suffix version offers extended industrial temperature coverage with identical pinout and electrical characteristics at 25°C, but exhibits slightly higher input offset drift (11.4 μV/°C vs. 11.5 μV/°C) and elevated bias current at temperature extremes.
Is TL032CDR pin-compatible with TL062CDR?
Yes, TL032CDR is pin-compatible with TL062CDR in the same SOIC-8 (D) package. Both share identical pin assignments: 1OUT, 1IN–, 1IN+, VCC–, 2IN+, 2IN–, 2OUT, VCC+. This allows direct drop-in replacement in existing TL062 layouts to improve DC accuracy and input impedance without PCB redesign.
TL032CDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
TL032CDR FAQ
1.How can I place an order for TL032CDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL032CDR 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 TL032CDR reliable?
The price and inventory of TL032CDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL032CDR is usually 5 days.
3.What payment methods are accepted for TL032CDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL032CDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL032CDR?
TL032CDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL032CDR 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 TL032CDR?
For technical support, including TL032CDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL032CDR requirements.
6.How does Aetrix verify that TL032CDR is sourced from the original manufacturer or authorized distributors?
All TL032CDR 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 TL032CDR meets industry standards.
7.What is the process for return or replacement of TL032CDR?
All TL032CDR units undergo pre-shipment inspection (PSI). If there is an issue with TL032CDR, 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 TL032CDR part is unused and in its original packaging.
Return procedure for TL032CDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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