Texas Instruments TLV2783CD

Overview

TLV2783CD from Texas Instruments is a dual rail-to-rail input/output operational amplifier optimized for low-voltage, low-power applications. It operates from 1.8 V to 3.6 V supply, delivers 8 MHz gain-bandwidth, 4.8 V/µs slew rate at 2.7 V, and consumes only 650 µA per channel - enabling high-speed signal conditioning in battery-powered data converters and portable instrumentation.

For engineers reviewing the TLV2783CD datasheet, TLV2783CD pinout, TLV2783CD application, or TLV2783CD equivalent, key selection criteria include its rail-to-rail I/O swing across 1.8–3.6 V, −40°C to 125°C industrial temperature grade (C-suffix = 0°C to 70°C), shutdown capability, and MSOP-8 package compatibility with space-constrained PCB layouts.

Technical Context

The TLV2783CD integrates two independent amplifiers sharing a common shutdown control (pin 5), supporting independent enable/disable of both channels. Its input stage uses CMOS architecture with 2.5 pA typical input bias current and VICR extending 0.2 V beyond rails (−0.2 V to VDD+0.2 V), enabling accurate sensing near ground or supply in single-supply systems.

Dynamic performance is stabilized by internal compensation delivering 58° phase margin into 2 kΩ//25 pF loads. Shutdown mode reduces supply current to ≤1.7 µA per channel while placing outputs in high-impedance state - critical for multiplexed sensor front-ends and power-gated signal chains.

Key Specifications

Pinout & Package

TLV2783CD is housed in an 8-pin MSOP (DGK) package with 0.65 mm pitch, 3.0 mm × 3.0 mm body, and exposed thermal pad (not electrically connected). Pin 1 is marked by a dot; pin numbering follows standard MSOP convention.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual rail-to-rail operational amplifier applications.

Compared with TLV2783ID, the TLV2783CD trades extended temperature range for lower cost in commercial-grade environments; versus OPA2333AIDGKR, it provides 22× higher bandwidth at 3.8% of the quiescent power - making it optimal for AC-coupled, medium-precision, high-speed signal chains.

Availability

TLV2783CD is available at Aetrix Electronics and suitable for portable instrumentation, low-voltage sensor interfaces, and industrial process monitoring requiring stable component supply and long-term production continuity.

Supply support for TLV2783CD 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 precision op-amps and low-power signal conditioning ICs.

The TLV278x family was designed specifically for ultra-low-voltage, rail-to-rail operational amplifier applications in portable and energy-sensitive systems - emphasizing bandwidth efficiency, shutdown power reduction, and robust single-supply operation down to 1.8 V.

FAQ

What is the maximum recommended supply voltage for TLV2783CD?

The absolute maximum supply voltage for TLV2783CD is 4 V, but the recommended operating range is strictly 1.8 V to 3.6 V per the datasheet. Exceeding 3.6 V risks parametric shift and reduced reliability; operation at 3.6 V is validated for all specifications including 8 MHz GBW and rail-to-rail output swing.

Does TLV2783CD support true rail-to-rail input common-mode range?

Yes, TLV2783CD supports a common-mode input voltage range (VICR) from −0.2 V to VDD+0.2 V, meaning it accepts inputs 200 mV below ground or 200 mV above VDD. This enables direct interfacing with transducers whose outputs swing beyond the supply rails, eliminating external level-shifting circuitry.

How does the shutdown function operate on TLV2783CD?

The TLV2783CD features a single active-low shutdown pin (pin 5) that disables both amplifiers simultaneously. When SHDN ≤ 0.6 V, supply current drops to ≤1.7 µA per channel and outputs enter high-impedance state. To enable, pull SHDN ≥2 V or leave floating (with care to avoid leakage-induced false shutdown).

What is the typical input bias current of TLV2783CD and why does it matter?

TLV2783CD has a typical input bias current of 2.5 pA at 25°C. This ultra-low value minimizes voltage errors across high-value feedback resistors (e.g., >1 MΩ), preserving accuracy in high-impedance sensor interfaces like pH probes or photodiode transimpedance amplifiers where bias current-induced offset dominates error budgets.

Can TLV2783CD drive capacitive loads without instability?

TLV2783CD is stable for capacitive loads ≤10 pF with direct connection. For larger loads (e.g., ADC input capacitance >10 pF), TI recommends adding a series null resistor (RNULL) between the op-amp output and load - typically 10–50 Ω - to isolate the capacitance and maintain ≥58° phase margin as verified in the datasheet's Figure 18.