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Texas Instruments TLC085CPWP
- Part No.:
- TLC085CPWP
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLC085CPWP.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,307
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Product details
Overview
TLC085CPWP from Texas Instruments is a quad-channel BiMOS operational amplifier optimized for single-supply, high-output-drive applications. It delivers 10 MHz bandwidth, ±57 mA output drive capability, 16 V/µs positive slew rate, and operates from 4.5 V to 16 V - enabling robust signal conditioning in audio line drivers and industrial sensor interfaces.
For engineers reviewing the TLC085CPWP datasheet, TLC085CPWP pinout, TLC085CPWP application, or TLC085CPWP equivalent, key selection criteria include its shutdown functionality, rail-to-rail input common-mode range (GND to VDD–2 V), low 8.5 nV/√Hz input noise, and TSSOP-20 PowerPAD™ package thermal performance.
Technical Context
The TLC085CPWP integrates a CMOS front end for ultra-high input impedance (>1 GΩ) and low input bias current (<100 pA), paired with a bipolar output stage delivering ±57 mA sourcing/sinking into heavy loads. Its BiMOS architecture enables simultaneous high AC performance (10 MHz GBW, 19 V/µs negative slew rate) and precision DC characteristics (60 µV max input offset voltage).
It features independent channel shutdown control via dedicated 1/2SHDN and 3/4SHDN pins, supporting dynamic power management in multi-stage amplification chains. The device is specified across –40°C to 125°C and supports stable operation with up to 50 pF capacitive load without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 10 MHz gain-bandwidth product - supports unity-gain stable operation up to 10 MHz for wideband signal processing. |
| Output Drive | ±57 mA per channel - drives 600 Ω audio loads or 10 kΩ instrumentation circuits directly without external buffers. |
| Slew Rate | +16 V/µs / –19 V/µs - preserves fast transient fidelity in pulse amplification and active filter stages. |
| Supply Range | 4.5 V to 16 V single supply - eliminates dual-rail complexity in battery-powered and industrial 12 V systems. |
| Input Noise | 8.5 nV/√Hz at 1 kHz - enables low-noise preamplification of weak sensor signals without significant SNR degradation. |
| Shutdown Current | 125 µA per channel - reduces total system quiescent power by >93% when channels are disabled. |
| Input Offset | 60 µV typical - minimizes DC error accumulation in multi-stage precision gain blocks. |
Pinout & Package
The TLC085CPWP is housed in a thermally enhanced 20-pin TSSOP (PWP) package with exposed thermal pad (PowerPAD™), optimized for high-power-density PCB layouts and efficient heat dissipation (θJA = 26.1°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | OUTx | Amplifier output terminals for channels 1–4; each capable of ±57 mA drive into resistive or moderate capacitive loads. |
| 2, 6, 10, 14 | INx– | Inverting inputs; high-impedance CMOS node (1000 GΩ) enabling precision feedback networks with minimal loading. |
| 3, 7, 11, 15 | INx+ | Non-inverting inputs; support rail-to-rail common-mode range (GND to VDD–2 V) for single-supply sensor interfacing. |
| 4, 12 | VDD | Positive supply rail connection; decoupling required near pin for stability under high-current transients. |
| 8, 16 | GND | Analog ground reference; tied to exposed thermal pad for optimal thermal and noise performance. |
| 17, 18 | 1/2SHDN, 3/4SHDN | Dedicated shutdown control lines - logic-low disables channels 1&2 or 3&4 independently, reducing IDD to 125 µA/channel. |
| 19, 20 | NC | No internal connection - left unconnected; not used for signal or thermal purposes. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs down to GND and up to VDD–2 V - simplifies level-shifting in single-supply data acquisition front ends. |
| Independent dual-channel shutdown | Two dedicated SHDN pins allow selective disabling of channel pairs - critical for dynamic power scaling in portable audio codecs. |
| High-output-drive bipolar output stage | Delivers ±57 mA while maintaining low distortion (<0.012% THD+N at 1 kHz) - suitable for driving low-Z headphones or relay coils. |
| Low-input-noise CMOS front end | 8.5 nV/√Hz noise density and <100 pA input bias current - preserves signal integrity in high-gain photodiode or strain gauge amplifiers. |
| Thermally enhanced PowerPAD™ package | PWP package achieves 4.79 W power dissipation rating - enables sustained high-output operation without derating in compact industrial modules. |
Applications
| Audio Line Driver | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving balanced/unbalanced analog audio outputs from DACs or microcontrollers into 600 Ω professional audio equipment. IC Role / Device Role / Timing Role: Quad op-amp configured as four independent line drivers with gain, DC offset correction, and output short-circuit protection. Use Value: ±57 mA output drive ensures full-swing 2 Vrms into 600 Ω without clipping; 10 MHz bandwidth preserves harmonic content up to 20 kHz. | Use Scenario: Amplifying low-level mV-range signals from RTDs, thermocouples, or bridge-based pressure sensors in PLC I/O modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front end with programmable gain, offset nulling, and rail-to-rail input for direct single-supply interface. Use Value: 60 µV input offset and 8.5 nV/√Hz noise minimize measurement error; shutdown mode reduces system standby power by >90%. |
| Active Filter Bank | Motor Control Current Sense Amplifier |
Use Scenario: Implementing multi-pole anti-aliasing or reconstruction filters in data converters operating at ≥100 kSPS. IC Role / Device Role / Timing Role: Quad op-amp used as four 2nd-order Sallen-Key or MFB filter sections with matched AC response across channels. Use Value: 10 MHz GBW and 19 V/µs slew rate support filter cutoff frequencies up to 100 kHz with <0.1 dB passband ripple. | Use Scenario: High-side or low-side current sensing in BLDC motor inverters, where fast transient response and high common-mode rejection are critical. IC Role / Device Role / Timing Role: Differential amplifier with external gain-setting resistors, rejecting bus voltage transients while amplifying shunt voltage. Use Value: 110 dB CMRR and 100 dB PSRR suppress PWM noise; ±57 mA output drives ADC input buffers directly without buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Lower bandwidth (6.4 MHz), lower output drive (±30 mA), no shutdown pins, SOIC-14 package. | Not suitable for high-current or power-managed designs; lacks independent shutdown control. | Select when cost sensitivity outweighs output drive and power management needs. |
| OPA4340UA | Higher precision (125 µV max VIO), lower noise (7 nV/√Hz), but limited output drive (±20 mA) and no shutdown. | Better for ultra-low-offset applications like medical instrumentation; insufficient for audio line driving. | Prefer for DC-critical sensor signal chains where output current <20 mA suffices. |
Compared with TLV2464IDR and OPA4340UA, the TLC085CPWP uniquely combines high-speed (10 MHz), high-output-drive (±57 mA), and dual-pair shutdown in a thermally robust TSSOP-20 PowerPAD™ package - making it the only option among the three qualified for demanding single-supply audio and industrial actuator interface roles.
Availability
TLC085CPWP is available at Aetrix Electronics and suitable for audio line driver design, industrial sensor signal conditioning, active filter implementation, and motor control current sensing requiring stable component supply and long-term production continuity.
Supply support for TLC085CPWP 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 power-efficient signal chain solutions.
The TLC08x family was designed specifically for engineers transitioning from legacy TL08x dual-supply op-amps to modern single-supply systems - delivering higher bandwidth, lower noise, rail-to-rail input, and integrated power management in compact packages.
FAQ
What is the operating temperature range for the TLC085CPWP?
The TLC085CPWP is rated for operation from –40°C to +125°C, meeting extended industrial temperature requirements. This specification applies to the 'I' suffix variant, and the CPWP package designation confirms this grade. The device maintains full electrical performance across this range, including guaranteed output drive, slew rate, and input offset voltage limits.
Does the TLC085CPWP support rail-to-rail input operation?
Yes, the TLC085CPWP supports rail-to-rail input common-mode voltage from GND to VDD–2 V. This allows direct interfacing with sensors and DACs operating at ground-referenced or near-rail output levels in single-supply configurations. Input offset voltage remains stable across this range, as confirmed by Figure 1 and Figure 2 in the datasheet.
How does the shutdown function work on the TLC085CPWP?
The TLC085CPWP features two independent shutdown pins: Pin 17 (1/2SHDN) disables channels 1 and 2, while Pin 18 (3/4SHDN) disables channels 3 and 4. Applying ≤0.8 V to either pin reduces the respective pair's supply current to 125 µA per channel. Both pins must be pulled high (≥2 V) to enable all four channels simultaneously.
What is the maximum capacitive load the TLC085CPWP can drive stably?
The TLC085CPWP is characterized for stable operation with up to 50 pF capacitive load at unity gain, as verified in phase margin testing (Figure 19 and Figure 20). For loads exceeding 50 pF, external isolation resistance (e.g., 10–50 Ω in series with the output) is recommended to maintain ≥30° phase margin and prevent peaking or oscillation.
Is the TLC085CPWP pin-compatible with other devices in the TLC08x family?
No - the TLC085CPWP uses a 20-pin TSSOP (PWP) package with dedicated shutdown pins and quad-channel layout, whereas TLC080/1/2 use 8-pin packages and TLC083/4 use 14- or 16-pin variants. Pin mapping differs significantly; for example, TLC085CPWP has separate 1/2SHDN and 3/4SHDN pins not present on TLC084CPWP, which lacks shutdown capability entirely.
TLC085CPWP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 19V/µs
- Gain Bandwidth Product:
- 10 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 390 µV
- Current - Supply:
- 1.9mA (x4 Channels)
- Current - Output / Channel:
- 57 mA
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 16 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HTSSOP
TLC085CPWP FAQ
1.How can I place an order for TLC085CPWP through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC085CPWP 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 TLC085CPWP reliable?
The price and inventory of TLC085CPWP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC085CPWP is usually 5 days.
3.What payment methods are accepted for TLC085CPWP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC085CPWP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC085CPWP?
TLC085CPWP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC085CPWP 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 TLC085CPWP?
For technical support, including TLC085CPWP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC085CPWP requirements.
6.How does Aetrix verify that TLC085CPWP is sourced from the original manufacturer or authorized distributors?
All TLC085CPWP 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 TLC085CPWP meets industry standards.
7.What is the process for return or replacement of TLC085CPWP?
All TLC085CPWP units undergo pre-shipment inspection (PSI). If there is an issue with TLC085CPWP, 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 TLC085CPWP part is unused and in its original packaging.
Return procedure for TLC085CPWP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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