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Texas Instruments TLC085AID
- Part No.:
- TLC085AID
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC085AID.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,191
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Product details
Overview
TLC085AID from Texas Instruments is a quad-channel BiMOS operational amplifier optimized for single-supply operation across 4.5 V to 16 V, delivering 10 MHz bandwidth, ±57 mA output drive, and 16 V/µs positive slew rate. It integrates shutdown control per channel pair (1/2SHDN and 3/4SHDN), supports rail-to-rail input common-mode range down to ground, and targets high-fidelity audio buffering and industrial sensor signal conditioning.
For engineers reviewing the TLC085AID datasheet, TLC085AID pinout, TLC085AID application, or TLC085AID equivalent, key selection criteria include guaranteed 125°C operation, dual-pair independent shutdown capability, 20-pin TSSOP package footprint, and verified performance at 12 V supply with <0.005% THD+N into 10 kΩ at 1 kHz.
Technical Context
The TLC085AID implements a CMOS front-end with bipolar output stage in TI's LBC3 BiCMOS process, enabling ultralow input bias current (≤700 pA) and high-output-current capability simultaneously. Its architecture ensures input offset voltage ≤2000 µV over –40°C to 125°C and maintains phase margin ≥37° with 50 pF load capacitance at 12 V supply.
It features two independent shutdown inputs-1/2SHDN controls channels 1 and 2, while 3/4SHDN controls channels 3 and 4-enabling selective power gating without affecting other amplifiers in the quad. Each channel draws only 125 µA in shutdown mode, supporting low-power system states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 10 MHz - enables stable closed-loop gain up to 10× at 1 MHz for anti-aliasing or active filtering. |
| Output Drive | ±57 mA - drives 600 Ω loads directly without external buffers in line-driver applications. |
| Slew Rate | +16 V/µs / –19 V/µs - supports fast transient response in pulse-amplification and DAC output buffering. |
| Supply Range | 4.5 V to 16 V - operates from single Li-ion battery (4.2 V nominal) up to industrial 12 V rails. |
| Input Offset | ≤2000 µV (–40°C to 125°C) - ensures <1 mV error in precision DC-coupled sensor interfaces. |
| Shutdown Current | 125 µA/channel - reduces total quiescent draw to <500 µA when all four channels are disabled. |
| Input Noise | 8.5 nV/√Hz @ 1 kHz - preserves SNR in microphone preamp and medical analog front-ends. |
Pinout & Package
Package: 20-pin TSSOP (PWP), 0.65 mm pitch, exposed thermal pad (non-electrical), JEDEC MO-153 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier 1 output - capable of sourcing/sinking ±57 mA into resistive or capacitive loads. |
| 2 | 1IN– | Inverting input for channel 1 - high-impedance CMOS node (≥1 GΩ) for minimal loading. |
| 3 | 1IN+ | Non-inverting input for channel 1 - accepts common-mode voltages from GND to VDD–2 V. |
| 4 | VDD | Positive supply rail - decoupling capacitor required within 10 mm for stability at full bandwidth. |
| 5 | 2IN+ | Non-inverting input for channel 2 - electrically isolated from channel 1 inputs for dual-sensor differential pairs. |
| 6 | 2IN– | Inverting input for channel 2 - matched to channel 1 for consistent AC coupling network design. |
| 7 | 2OUT | Amplifier 2 output - shares same output drive specs as pin 1; independent of channel 1 output stage. |
| 8 | 1/2SHDN | Shutdown control for channels 1 & 2 - logic-low (<0.8 V) disables both amplifiers; high-Z when floating. |
| 9–10 | NC | No internal connection - must be left unconnected or tied to GND for mechanical stability. |
| 11 | 4OUT | Amplifier 4 output - identical drive capability to pins 1 and 7; used in quad-ended signal paths. |
| 12 | 4IN– | Inverting input for channel 4 - referenced to same GND as all other channels; no isolation between channels. |
| 13 | 4IN+ | Non-inverting input for channel 4 - supports rail-to-rail input swing up to VDD–2 V. |
| 14 | GND | Analog ground reference - dedicated return path for all four amplifiers; separate from digital ground. |
| 15 | 3IN+ | Non-inverting input for channel 3 - configured identically to pins 3 and 5 for consistent layout routing. |
| 16 | 3IN– | Inverting input for channel 3 - matched input capacitance (21.6 pF) enables balanced filter design. |
| 17 | 3OUT | Amplifier 3 output - fully independent output stage; supports simultaneous 4-channel signal processing. |
| 18 | 3/4SHDN | Shutdown control for channels 3 & 4 - independent timing from pin 8; allows staggered wake-up sequences. |
| 19–20 | NC | No internal connection - no internal bond wires; PCB copper should avoid solder mask opening. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs down to GND and up to VDD–2 V - eliminates level-shifting in single-supply data acquisition. |
| Dual independent shutdown pairs | 1/2SHDN and 3/4SHDN enable selective channel disabling - reduces system power by >90% during idle periods. |
| High-output-current bipolar stage | Delivers ±57 mA while maintaining <0.5 V VOL at 50 mA - drives LEDs, relays, or transmission lines directly. |
| Low input noise density | 8.5 nV/√Hz at 1 kHz - preserves dynamic range in 16-bit+ ADC driver stages without added gain-stage noise. |
| Guaranteed operation to 125°C | Specified performance over –40°C to 125°C - suitable for under-hood automotive and industrial motor-control environments. |
Applications
| Audio Line Driver | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Driving balanced/unbalanced audio signals over 10 m cables to powered speakers or recording equipment. IC Role / Device Role / Timing Role: Quad op-amp configured as two differential drivers (channels 1&2) and two receiver buffers (channels 3&4). Use Value: ±57 mA output drive ensures 2 Vpp into 600 Ω loads with <0.005% THD+N at 1 kHz, meeting AES3 and EBU standards. | Use Scenario: Amplifying low-level outputs from RTDs, strain gauges, or thermocouples in PLC analog input modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and offset correction per channel. Use Value: Input offset ≤2000 µV and 8.5 nV/√Hz noise maintain 16-bit effective resolution across –40°C to 125°C ambient. |
| Automotive Camera Video Buffer | Medical ECG Analog Front-End |
Use Scenario: Buffering high-speed analog video (CVBS or Y/C) from rear-view cameras before digitization in ADAS ECUs. IC Role / Device Role / Timing Role: Single-supply video amplifier with fast settling (0.17 µs to 0.01%) and wide bandwidth (10 MHz). Use Value: 16 V/µs slew rate and 10 MHz GBW support 480i/576i video bandwidth without distortion or group delay. | Use Scenario: Low-noise, high-impedance amplification of microvolt-level ECG signals prior to 24-bit sigma-delta ADC conversion. IC Role / Device Role / Timing Role: First-stage gain block with selectable gain (10–100×) and integrated right-leg drive (RLD) feedback path. Use Value: 700 pA max input bias current prevents electrode polarization; 8.5 nV/√Hz noise achieves >100 dB SNR at 100 Hz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464AIDR | Lower bandwidth (6.4 MHz), lower output drive (±35 mA), no shutdown pins, 14-pin SOIC package. | Not suitable for high-current line driving or selective channel shutdown; better for cost-sensitive, low-power sensor nodes. | Select TLV2464AIDR only if bandwidth and output current requirements are relaxed and PCB space permits larger SOIC footprint. |
| OPA4340UA | Higher precision (125 µV max VIO), rail-to-rail output, but lower output drive (±20 mA) and no shutdown function. | Preferred for ultra-low-offset applications like precision weight scales; unsuitable for driving heavy loads or power-gated systems. | Choose OPA4340UA when offset voltage and output swing are critical, and output current demand is <20 mA per channel. |
Compared with TLV2464AIDR and OPA4340UA, the TLC085AID uniquely combines high-speed (10 MHz), high-output-drive (±57 mA), and dual-pair shutdown in a 20-pin TSSOP - making it the only option among the three that meets simultaneous demands of industrial video buffering and energy-efficient multi-channel signal chains.
Availability
TLC085AID is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive camera video buffering, and medical ECG analog front-end designs requiring stable component supply across extended temperature ranges.
Supply support for TLC085AID 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 over 90 years of innovation in high-reliability components.
The TLC08x family was designed for wide-bandwidth, high-output-drive single-supply operational amplifier applications in audio, automotive, industrial, and instrumentation systems where rail-to-rail input and robust output staging are essential.
FAQ
What is the maximum operating temperature range specified for the TLC085AID?
The TLC085AID is rated for operation from –40°C to +125°C, with all electrical characteristics guaranteed across this extended industrial temperature range. This specification is confirmed in the "RECOMMENDED OPERATING CONDITIONS" table of the SLOS254F datasheet, and the 'I' suffix in TLC085AID explicitly denotes the industrial-grade temperature rating. The device maintains 10 MHz bandwidth and ±57 mA output drive throughout this full range.
Does the TLC085AID support true rail-to-rail output swing?
No, the TLC085AID does not provide rail-to-rail output swing. Its output voltage swing is limited to within approximately 1.5 V of each rail under full load - for example, VOH ≥10.3 V and VOL ≤0.65 V at VDD = 12 V and IOL/IOH = 50 mA. However, its input common-mode range extends from GND to VDD–2 V, enabling true single-supply operation with ground-referenced signals. This distinction is clearly documented in the "ELECTRICAL CHARACTERISTICS" tables for VOH and VOL.
How many independent shutdown controls does the TLC085AID have, and how are they assigned?
The TLC085AID has two independent shutdown inputs: pin 8 (1/2SHDN) controls amplifiers 1 and 2, while pin 18 (3/4SHDN) controls amplifiers 3 and 4. Each input asserts shutdown when pulled to ≤0.8 V (logic low), reducing supply current per channel to 125 µA. Both pins default to active-high operation and must be actively driven; floating states result in normal operation. This dual-pair architecture is unique to the TLC085 and is detailed in the "FAMILY PACKAGE TABLE" and pin diagrams of the SLOS254F datasheet.
What is the typical input offset voltage for the TLC085AID at 25°C and VDD = 12 V?
The typical input offset voltage for the TLC085AID at 25°C and VDD = 12 V is 390 µV, as specified in the "ELECTRICAL CHARACTERISTICS" table under "TLC084/5A" grade devices. The maximum guaranteed value over the full –40°C to 125°C range is 2000 µV. This parameter is measured with VIC = 6 V and VO = 6 V, using RS = 50 Ω, and reflects the A-grade precision binning of the TLC085AID versus standard-grade TLC085ID.
Can the TLC085AID drive a 600 Ω load at 1 kHz with less than 0.01% THD+N?
Yes, the TLC085AID can drive a 600 Ω load at 1 kHz with THD+N ≤ 0.005%, as verified in the "OPERATING CHARACTERISTICS" table for VDD = 12 V. At AV = 1 and VO(PP) = 8 V, THD+N is 0.005% typical. This performance exceeds the 0.01% threshold and is enabled by the high-output-current bipolar stage and low-noise CMOS front-end. The test condition assumes CL = 50 pF and RL = 600 Ω, matching standard audio line-driving requirements.
TLC085AID Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm 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:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
TLC085AID FAQ
1.How can I place an order for TLC085AID through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC085AID 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 TLC085AID reliable?
The price and inventory of TLC085AID are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC085AID is usually 5 days.
3.What payment methods are accepted for TLC085AID?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC085AID transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC085AID?
TLC085AID orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC085AID 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 TLC085AID?
For technical support, including TLC085AID datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC085AID requirements.
6.How does Aetrix verify that TLC085AID is sourced from the original manufacturer or authorized distributors?
All TLC085AID 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 TLC085AID meets industry standards.
7.What is the process for return or replacement of TLC085AID?
All TLC085AID units undergo pre-shipment inspection (PSI). If there is an issue with TLC085AID, 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 TLC085AID part is unused and in its original packaging.
Return procedure for TLC085AID:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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