Texas Instruments TLV2404CPWG4

Overview

TLV2404CPWG4 from Texas Instruments is a quad rail-to-rail input/output micro-power operational amplifier with 880 nA per channel supply current, reverse battery protection up to 18 V, and input common-mode range extending 5 V beyond VCC. It operates from 2.5 V to 16 V and delivers rail-to-rail output swing at loads ≥500 kΩ, making it ideal for ultra-low-power sensor signal conditioning in battery-powered industrial monitoring systems.

For engineers reviewing the TLV2404CPWG4 datasheet, TLV2404CPWG4 pinout, TLV2404CPWG4 application, or TLV2404CPWG4 equivalent, key selection criteria include its sub-1-µA quiescent current, –0.1 V to VCC+5 V input voltage range, 5.5 kHz gain-bandwidth product, 390 µV typical input offset voltage, and TSSOP-14 package compatibility with space-constrained PCB layouts.

Technical Context

The TLV2404CPWG4 employs a dual-differential-input architecture: a PNP pair active for inputs from –0.1 V to VCC–0.8 V, and NPN emitter followers plus a second PNP pair enabling operation up to VCC+5 V. This design ensures stable biasing and phase-correct amplification across extended common-mode ranges without inversion.

Reverse battery protection is implemented via integrated Schottky diode clamping, limiting reverse supply current to ≤100 nA at 25°C when VCC = –18 V and inputs are grounded. Output drive capability is specified at ±200 µA into loads referenced to rails, with rail-to-rail swing maintained under light loading (≥500 kΩ).

Key Specifications

Pinout & Package

The TLV2404CPWG4 is housed in a 14-pin TSSOP (PW) package with exposed thermal pad, measuring 5.0 mm × 4.4 mm × 1.2 mm. Pin 1 is marked by a dot; pin numbering follows standard TSSOP convention (counterclockwise from top-left corner).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar operational amplifier applications.

Compared with TLV2404CDR, TLV2404CPWG4 reduces PCB area by 58% and improves thermal resistance by 29%, while TLV2404IPWG4 trades 300 µV higher max offset for guaranteed operation at 125°C - making TLV2404CPWG4 the optimal balance of size, power, and cost for indoor industrial use.

Availability

TLV2404CPWG4 is available at Aetrix Electronics and suitable for industrial sensor interface, portable medical monitoring, battery management systems, and smart utility metering requiring stable component supply across multi-year production cycles.

Supply support for TLV2404CPWG4 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 chains.

The TLV240x product line was designed specifically for ultra-low-power, high-accuracy sensing in battery-operated industrial and medical devices - prioritizing nanoscale quiescent current without sacrificing DC precision or robustness.

FAQ

What is the maximum supply voltage for TLV2404CPWG4?

The absolute maximum supply voltage for TLV2404CPWG4 is 17 V, but the recommended operating range is 2.5 V to 16 V. Operation at 16 V is fully characterized for parameters including input common-mode range (up to 21 V), output swing, and PSRR. Exceeding 16 V risks parametric degradation and reduced long-term reliability, even if within absolute maximum ratings.

Does TLV2404CPWG4 support true rail-to-rail output with heavy loads?

TLV2404CPWG4 delivers rail-to-rail output swing only under light loading conditions - specifically with RL ≥ 500 kΩ. At 50 µA output current, VOL is 260 mV above GND and VOH is 14.9 V below VCC (at VCC = 15 V). For heavier loads, external gain-setting resistors must be sized to limit output current to ≤2 µA to maintain full swing.

Can TLV2404CPWG4 be used with a 1.8-V supply?

No - TLV2404CPWG4 has a minimum recommended supply voltage of 2.5 V. At 1.8 V, internal biasing fails: the PNP input stage cannot establish proper current mirrors, resulting in undefined offset voltage, loss of rail-to-rail input capability, and potential phase inversion below –0.1 V. For 1.8-V systems, consider TI's TLV8801 or similar sub-2-V op-amps.

What is the input bias current behavior when inputs exceed VCC?

When inputs rise above VCC, the NPN emitter followers in TLV2404CPWG4 transition from active amplification to diode conduction, causing input bias current to increase from <100 pA (at VIC = VCC/2) to ~1 nA at VCC+5 V. This is intentional and non-destructive; however, designers must ensure source impedance remains <10 kΩ to avoid significant offset errors from IIB × RS.

Is TLV2404CPWG4 pin-compatible with other quad op-amps in TSSOP-14?

TLV2404CPWG4 follows standard TSSOP-14 pinout for quad op-amps (1OUT, 1IN–, 1IN+, VCC, 2IN+, 2IN–, 2OUT, GND, 3OUT, 3IN–, 3IN+, VCC, 4IN+, 4IN–), matching industry conventions. However, functional compatibility requires verification of supply current, bandwidth, and input stage architecture - e.g., it is not a drop-in replacement for higher-speed or lower-offset devices like LMV324 or MCP6004 due to fundamental design trade-offs.