Texas Instruments TLV2442QDRG4

Overview

TLV2442QDRG4 from Texas Instruments is a dual-channel, rail-to-rail output operational amplifier optimized for automotive-grade operation (–40°C to +125°C). It delivers 1.8 MHz gain-bandwidth, 750 µA per channel supply current, 16 nV/√Hz input voltage noise at 1 kHz, 950 µV max input offset voltage at 25°C, and 600-Ω output drive capability - enabling precision signal conditioning in low-voltage sensor interfaces and ADC driver stages.

For engineers reviewing the TLV2442QDRG4 datasheet, TLV2442QDRG4 pinout, TLV2442QDRG4 application, or TLV2442QDRG4 equivalent, key selection criteria include its extended common-mode input range (0 V to 4.25 V min at 5-V supply), no phase inversion behavior near rails, and Q-temp qualification for automotive reliability - critical for battery-powered telemetry, engine control analog front-ends, and industrial sensor signal chains.

Technical Context

The TLV2442QDRG4 uses Advanced LinCMOS™ process technology to achieve rail-to-rail output swing while maintaining wide common-mode input voltage range (0 V to V_DD – 1.3 V) and eliminating phase inversion when inputs approach supply rails. Its high input impedance (>1 TΩ differential and common-mode resistance) and ultra-low input bias current (1 pA typ) make it suitable for high-impedance source interfacing.

Internally compensated with 68° phase margin at unity gain (5-V supply, 600-Ω load, 100-pF capacitive load), the device supports stable operation in unity-gain follower and closed-loop configurations without external compensation. The 0.75 V/µs slew rate and 1.81 MHz gain-bandwidth product enable accurate amplification of moderate-bandwidth sensor signals up to ~500 kHz full-power bandwidth.

Key Specifications

Pinout & Package

TSSOP-8 package (PW), 3.0 mm × 4.4 mm body, 0.65 mm pitch, exposed pad optional; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV2442AIPW and LM7332MA/NOPB, the TLV2442QDRG4 uniquely combines automotive temperature range, ultra-low input bias current, and rail-to-rail output in a 3-mm × 4.4-mm TSSOP - making it the optimal choice for space-constrained, battery-aware automotive sensor nodes where long-term reliability is mandatory.

Availability

TLV2442QDRG4 is available at Aetrix Electronics and suitable for automotive ECU sensor interfaces, industrial temperature monitoring systems, and portable medical vital signs monitors requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV2442QDRG4 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 automotive IC design expertise and broad manufacturing scale.

The TLV244x family was engineered specifically for low-voltage, rail-to-rail signal conditioning in automotive and industrial applications - prioritizing input/output voltage range, precision, and reliability over raw speed or power efficiency.

FAQ

What is the operating temperature range for TLV2442QDRG4?

The TLV2442QDRG4 is qualified for continuous operation from –40°C to +125°C ambient temperature, meeting automotive Q-temp requirements. This rating is verified per manufacturer specifications and applies across the full supply voltage range (2.7 V to 10 V), ensuring reliable performance in under-hood and industrial environments where thermal stress is critical. The TLV2442QDRG4 maintains specified electrical parameters including input offset voltage and CMRR throughout this range.

Does TLV2442QDRG4 support true rail-to-rail input operation?

No, the TLV2442QDRG4 features rail-to-rail *output* but not rail-to-rail *input*. Its common-mode input voltage range extends from VDD– (GND) to VDD+ – 1.3 V at 5-V supply, meaning it accepts inputs down to ground but only up to ~3.7 V - not the full 0–5 V span. This design avoids phase inversion near the positive rail while retaining CMOS input advantages like ultra-low bias current. For full rail-to-rail input, consider TI's TLV9002 or OPA333 families.

Can TLV2442QDRG4 drive a 100-pF capacitive load stably?

Yes, the TLV2442QDRG4 is internally compensated for unity-gain stability with capacitive loads up to 100 pF, as confirmed by phase margin measurements (68° at 5 V, 600-Ω load, 100-pF CL). However, driving larger capacitive loads (>100 pF) or purely capacitive destinations (e.g., unbuffered ADC inputs) may require isolation resistors or external compensation to prevent peaking or oscillation. Always verify stability in final PCB layout using actual parasitic capacitance.

What is the maximum output current capability of TLV2442QDRG4?

The TLV2442QDRG4 delivers ±5 mA continuous output current into resistive loads, as specified in absolute maximum ratings and validated by output voltage swing curves (e.g., VOH = 4 V at IOH = –5 mA, VDD = 5 V). Short-circuit output current reaches ±25 mA (typical), but sustained operation above ±5 mA risks thermal overload or parameter shift. For 600-Ω loads, it maintains rail-to-rail swing; for lower impedances, output compliance degrades linearly per the VOH/VOL vs. IOUT curves.

Is TLV2442QDRG4 pin-compatible with other devices in the TLV244x family?

Yes, the TLV2442QDRG4 shares identical pinout and footprint with all TLV2442 variants in TSSOP-8 (PW) packaging, including TLV2442CDR, TLV2442AIPW, and TLV2442IDR. This allows drop-in replacement across temperature grades and offset voltage bins without PCB redesign. However, note that TLV2444 (quad) and TLV243x (low-power) families use different pinouts and are not compatible.