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Texas Instruments TLC085AIDR
- Part No.:
- TLC085AIDR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLC085AIDR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,851
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Product details
Overview
TLC085AIDR from Texas Instruments is a quad-channel, single-supply operational amplifier in the BiMOS family, featuring 10 MHz bandwidth, ±57 mA output drive capability, and 16 V/µs positive slew rate. It operates from 4.5 V to 16 V across –40°C to 125°C and includes individual shutdown control per channel pair (1/2SHDN and 3/4SHDN), making it suitable for high-fidelity audio line drivers and industrial sensor signal conditioning.
For engineers reviewing the TLC085AIDR datasheet, TLC085AIDR pinout, TLC085AIDR application, or TLC085AIDR equivalent, key selection considerations include its rail-to-rail input common-mode range (GND to VDD–2 V), low 8.5 nV/√Hz input voltage noise at 1 kHz, 125 µA/channel shutdown current, and TSSOP-16 package compatibility with space-constrained PCB layouts.
Technical Context
The TLC085AIDR 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 enabling ±57 mA sourcing/sinking into heavy loads. Its dual-pair shutdown architecture allows independent power gating of channels 1–2 and 3–4 via dedicated SHDN pins.
Designed for single-supply operation, it delivers full-swing output capability with VOH ≥3.2 V (at IOH = –50 mA, VDD = 5 V) and VOL ≤0.7 V (at IOL = 50 mA, VDD = 5 V), while maintaining 10 MHz gain-bandwidth product and >80 dB CMRR across its operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bandwidth | 10 MHz - supports stable closed-loop operation up to 10 MHz at unity gain for wideband signal processing. |
| Output Drive | ±57 mA - drives 600 Ω loads directly without external buffers in audio and instrumentation interfaces. |
| Slew Rate | +16 V/µs / –19 V/µs - enables fast settling for pulse and transient signals in data acquisition systems. |
| Supply Range | 4.5 V to 16 V - compatible with both 5 V and 12 V industrial rails, eliminating need for level-shifting circuitry. |
| Input Noise | 8.5 nV/√Hz @ 1 kHz - preserves SNR in low-level sensor amplification stages such as thermocouple or strain gauge front ends. |
| Shutdown Current | 125 µA/channel - reduces system standby power by >93% versus active mode (1.9 mA/channel) in battery-powered equipment. |
| Operating Temp | –40°C to 125°C - qualified for under-hood automotive and factory-floor industrial environments without derating. |
Pinout & Package
TLC085AIDR is housed in a 16-pin TSSOP (PWP) package with exposed thermal pad, measuring 5.0 mm × 4.4 mm × 1.2 mm. The package supports automated optical inspection and provides enhanced thermal dissipation (θJA = 26.1°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier 1 output - drives external load or feedback network; capable of ±57 mA continuous current. |
| 2 | 1IN– | Inverting input for channel 1 - high-impedance node (≥1 GΩ) for precision feedback configuration. |
| 3 | 1IN+ | Non-inverting input for channel 1 - accepts input signals from GND to VDD–2 V common-mode range. |
| 4 | VDD | Positive supply rail - powers all four op-amps and internal bias circuitry; bypass capacitor required. |
| 5 | 2IN+ | Non-inverting input for channel 2 - shares same input voltage range and impedance as 1IN+. |
| 6 | 2IN– | Inverting input for channel 2 - electrically identical to 1IN–; supports independent differential configurations. |
| 7 | 2OUT | Amplifier 2 output - fully independent output stage with same drive strength and slew performance as 1OUT. |
| 8 | 1/2SHDN | Shutdown control for channels 1 & 2 - logic-low (≤0.8 V) disables both amplifiers, reducing IDD to 125 µA total. |
| 9 | 4OUT | Amplifier 4 output - third independent output terminal; matches electrical specs of 1OUT and 2OUT. |
| 10 | 4IN– | Inverting input for channel 4 - part of second amplifier pair; referenced to same ground plane as other inputs. |
| 11 | 4IN+ | Non-inverting input for channel 4 - supports rail-to-rail input operation up to VDD–2 V. |
| 12 | GND | Analog ground reference - return path for all input/output currents; must be connected to low-impedance system ground. |
| 13 | 3IN+ | Non-inverting input for channel 3 - completes second differential pair; shares VDD/GND supply domain. |
| 14 | 3IN– | Inverting input for channel 3 - matched to 4IN– for consistent offset and CMRR performance. |
| 15 | 3OUT | Amplifier 3 output - fourth independent output; rated for same output swing and load capability as others. |
| 16 | 3/4SHDN | Shutdown control for channels 3 & 4 - independent logic input enabling selective power-down of second amplifier pair. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs down to GND and up to VDD–2 V, simplifying level translation in single-supply sensor interfaces. |
| Dual independent shutdown controls | 1/2SHDN and 3/4SHDN pins allow partial system power management-e.g., disable unused channels in multi-sensor nodes. |
| High-output-drive bipolar output stage | Delivers ±57 mA into resistive loads, enabling direct driving of ADC reference buffers or analog multiplexer inputs. |
| Low input voltage noise density | 8.5 nV/√Hz at 1 kHz ensures minimal added noise in precision DC-coupled amplification paths. |
| Wide supply voltage range | 4.5 V to 16 V operation eliminates need for separate LDOs when interfacing with mixed-voltage subsystems. |
| Extended temperature qualification | Specified from –40°C to 125°C with no parameter derating, supporting deployment in harsh automotive and industrial settings. |
Applications
| Audio Line Driver | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Driving balanced/unbalanced line outputs from audio codecs or DACs into 600 Ω professional audio equipment. IC Role / Device Role / Timing Role: Quad op-amp configured as two differential drivers (channels 1–2) and two active filters (channels 3–4), leveraging independent shutdown for mute functions. Use Value: ±57 mA output drive eliminates external buffer transistors; 10 MHz bandwidth preserves harmonic content up to 20 kHz with <0.012% THD+N at 1 kHz. |
Use Scenario: Amplifying low-level mV-range signals from RTDs, thermocouples, or bridge-based pressure sensors before ADC sampling. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front end using two channels in difference-amplifier topology, with third channel as reference buffer and fourth as anti-alias filter. Use Value: 8.5 nV/√Hz input noise and 60 µV max input offset voltage maintain sub-16-bit effective resolution; rail-to-rail input accommodates sensor excitation voltages. |
| Automotive Body Control Module | Programmable Logic Controller Analog I/O |
|
Use Scenario: Signal conditioning for cabin temperature, seat position, and ambient light sensors in vehicle body control units operating at 12 V nominal supply. IC Role / Device Role / Timing Role: Four independent signal paths: two for sensor amplification, one for LED driver bias control, and one for diagnostic comparator reference generation. Use Value: –40°C to 125°C rating ensures reliability under hood; 125 µA/channel shutdown current extends battery life during sleep mode. |
Use Scenario: Providing isolated analog input buffering and output voltage/current driving in modular PLC backplanes with 24 V DC field power. IC Role / Device Role / Timing Role: Channel 1–2 used as programmable gain amplifiers for 0–10 V inputs; channels 3–4 serve as 4–20 mA loop drivers with precision current sensing. Use Value: 16 V/µs slew rate supports fast response to step changes in process variables; 4.5–16 V supply range matches industrial 24 V rail with dropout tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464AIPW | Lower bandwidth (6.4 MHz), lower output drive (±30 mA), no shutdown pins, 1.8–6 V supply only. | Not suitable for 12 V systems or high-current loads; lacks independent shutdown for power-gated sensor nodes. | Select when cost-sensitive, low-voltage (<6 V), and moderate-speed applications dominate; avoid for automotive or industrial 12 V use. |
| 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 medical instrumentation, but cannot replace TLC085AIDR where ±57 mA drive is required. | Choose for high-accuracy DC-coupled circuits where output current demand is <20 mA; not drop-in for load-driving roles. |
Compared with TLV2464AIPW and OPA4340UA, the TLC085AIDR uniquely combines 10 MHz bandwidth, ±57 mA drive, dual shutdown control, and –40°C to 125°C operation-enabling compact, robust designs in automotive and industrial signal chains where performance and power management coexist.
Availability
TLC085AIDR is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, and programmable logic controller analog I/O requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLC085AIDR 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 for industrial, automotive, and communications markets.
The TLC085AIDR belongs to TI's BiMOS operational amplifier family, engineered to replace legacy TL08x devices with higher bandwidth, lower noise, and single-supply capability for modern sensor, audio, and control systems.
FAQ
What is the maximum supply voltage for TLC085AIDR?
The absolute maximum supply voltage for TLC085AIDR is 17 V, but the recommended operating range is 4.5 V to 16 V. Operation at 16 V ensures full specification compliance across –40°C to 125°C, including output swing, slew rate, and distortion performance. Exceeding 16 V risks parametric degradation or permanent damage, even if within the 17 V absolute limit.
Does TLC085AIDR support rail-to-rail output swing?
No, TLC085AIDR does not provide rail-to-rail output swing. Its output voltage swing is specified as VOH ≥3.2 V (at –50 mA, VDD = 5 V) and VOL ≤0.7 V (at +50 mA, VDD = 5 V), meaning it typically loses ~1.5 V headroom at both rails. This limitation is inherent to its bipolar output stage design, which prioritizes high current drive over full-rail output capability.
How does the shutdown functionality work on TLC085AIDR?
TLC085AIDR features two independent shutdown pins: pin 8 (1/2SHDN) disables channels 1 and 2, while pin 16 (3/4SHDN) disables channels 3 and 4. Applying ≤0.8 V to either pin reduces the respective pair's supply current to 125 µA total (62.5 µA per channel), halting amplification without affecting the other pair. Both pins must be pulled high (≥2 V) for full operation.
What is the input offset voltage specification for TLC085AIDR?
The TLC085AIDR has a maximum input offset voltage of 2000 µV over the full temperature range (–40°C to 125°C) and 1400 µV at 25°C for the 'A' grade. This value is confirmed in the Electrical Characteristics table under VIO for TLC084/5A devices at VDD = 5 V and VIC = 2.5 V. It reflects guaranteed initial accuracy-not typical or minimum values.
Can TLC085AIDR drive a 600 Ω load at audio frequencies?
Yes, TLC085AIDR can drive a 600 Ω load across the full audio band (20 Hz–20 kHz). At VDD = 12 V, it delivers VOH ≥10.2 V and VOL ≤0.65 V at ±50 mA, enabling >15 VPP output swing. THD+N remains ≤0.005% at 1 kHz with 8 VPP output into 600 Ω, satisfying professional audio line-driver requirements without external buffering.
TLC085AIDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
TLC085AIDR FAQ
1.How can I place an order for TLC085AIDR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLC085AIDR 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 TLC085AIDR reliable?
The price and inventory of TLC085AIDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLC085AIDR is usually 5 days.
3.What payment methods are accepted for TLC085AIDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLC085AIDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLC085AIDR?
TLC085AIDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLC085AIDR 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 TLC085AIDR?
For technical support, including TLC085AIDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLC085AIDR requirements.
6.How does Aetrix verify that TLC085AIDR is sourced from the original manufacturer or authorized distributors?
All TLC085AIDR 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 TLC085AIDR meets industry standards.
7.What is the process for return or replacement of TLC085AIDR?
All TLC085AIDR units undergo pre-shipment inspection (PSI). If there is an issue with TLC085AIDR, 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 TLC085AIDR part is unused and in its original packaging.
Return procedure for TLC085AIDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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