Texas Instruments TLC085ID

Overview

TLC085ID 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, 16 V/µs positive slew rate, and operates across –40°C to 125°C - enabling robust signal conditioning in automotive sensor interfaces and industrial PLC analog I/O modules.

For engineers reviewing the TLC085ID datasheet, TLC085ID pinout, TLC085ID application, or TLC085ID equivalent, key selection criteria include its shutdown capability, rail-to-rail input common-mode range (GND to VDD–2 V), low 8.5 nV/√Hz input noise, and compatibility with 4.5 V to 16 V supplies in space-constrained TSSOP-16 layouts.

Technical Context

The TLC085ID integrates a CMOS front end for ultra-high input impedance (>1 GΩ) and low input bias current (<700 pA), paired with a bipolar output stage delivering ±57 mA sourcing/sinking into heavy loads. Its internal architecture supports true single-supply operation with VICR extending to ground and includes dedicated shutdown control per channel pair (pins 8 and 16).

Designed for stability driving capacitive loads up to 50 pF, it features phase margins of 37° (CL = 50 pF, VDD = 12 V) and gain margin >3 dB - critical for closed-loop precision in active filters and transimpedance amplifiers without external compensation.

Key Specifications

Pinout & Package

The TLC085ID is housed in a 16-pin TSSOP package (PWP), 5.0 mm × 4.4 mm, 0.65 mm pitch, with exposed thermal pad for enhanced power dissipation (θJA = 26.1°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad op-amp applications.

Compared with TLV2464IDR and OPA4340UA, the TLC085ID uniquely balances wide supply range (4.5–16 V), high output current (±57 mA), and dual shutdown control - making it the only option among the three capable of driving 4–20 mA loops and surviving automotive temperature extremes without derating.

Availability

TLC085ID is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial PLC analog I/O modules, and embedded audio line driver designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLC085ID 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 expertise in high-reliability op-amp design.

The TLC085ID belongs to TI's BiMOS operational amplifier family, engineered to replace legacy TL08x devices in single-supply systems demanding higher AC performance, stronger output drive, and extended temperature operation.

FAQ

What is the maximum capacitive load the TLC085ID can drive while remaining stable?

The TLC085ID maintains stability with up to 50 pF capacitive load at unity gain, achieving 37° phase margin and >3 dB gain margin under 12 V supply conditions. For loads exceeding 50 pF - such as long cables or high-capacitance ADC inputs - an isolation resistor (≥10 Ω) should be placed in series with the output to preserve stability. This behavior is verified in the datasheet's Figure 19 and Figure 20 phase margin vs. load capacitance plots.

Does the TLC085ID support true rail-to-rail input operation?

The TLC085ID supports rail-to-rail input common-mode voltage range from GND to VDD–2 V, meaning it accepts input signals down to ground potential - a critical feature for single-supply sensor interfaces. However, it does not support input voltages at the positive rail (VDD); the upper limit is VDD–2 V. This specification is confirmed in the "Recommended Operating Conditions" table on page 4 of the SLOS254F datasheet.

How does the shutdown functionality work on the TLC085ID?

The TLC085ID features two independent shutdown controls: pin 8 (1/2SHDN) disables channels 1 and 2, while pin 16 (3/4SHDN) disables channels 3 and 4. A logic-low voltage ≤0.8 V places the respective amplifier pair into ultralow-power mode (125 µA/channel), while a logic-high voltage ≥2 V enables normal operation. This dual-control architecture allows selective power gating in multi-channel systems - a capability explicitly documented in the "Electrical Characteristics" table on page 5 of the TLC085ID datasheet.

What is the typical input offset voltage for the TLC085ID over temperature?

The TLC085ID has a maximum input offset voltage of 3000 µV across the full –40°C to 125°C operating range, with a typical value of 390 µV at 25°C (VDD = 5 V). Its temperature coefficient is 1.2 µV/°C, meaning offset drift remains tightly bounded - for example, a 100°C rise adds only ~120 µV to the baseline offset. These values are specified in the "Electrical Characteristics" tables on pages 4 and 6 of the SLOS254F datasheet.

Can the TLC085ID operate from a 3.3 V supply?

No, the TLC085ID requires a minimum supply voltage of 4.5 V per the "Recommended Operating Conditions" table (page 4 of SLOS254F). Operation below 4.5 V is outside specification and may result in degraded output swing, reduced bandwidth, or failure to meet slew rate or drive current guarantees. For 3.3 V systems, consider TI's TLV2464 or OPA4340 families - but note these lack the TLC085ID's output drive and shutdown features.