Texas Instruments TLV9004SIRTER

Overview

TLV9004SIRTER from Texas Instruments is a quad-channel, rail-to-rail input/output operational amplifier optimized for low-power, cost-sensitive systems operating from 1.8 V to 5.5 V supply. It delivers ±0.4 mV input offset voltage, 1 MHz unity-gain bandwidth, 60 µA per channel quiescent current, and robust 500 pF capacitive-load drive-enabling precision sensor signal conditioning in wearable devices and smoke detectors.

For engineers reviewing the TLV9004SIRTER datasheet, TLV9004SIRTER pinout, TLV9004SIRTER application, or TLV9004SIRTER equivalent, key selection considerations include its shutdown control (SHDN12/SHDN34), resistive open-loop output impedance for stable high-capacitance interfacing, extended –40°C to 125°C operation, and WQFN-16 package with exposed thermal pad.

Technical Context

The TLV9004SIRTER implements a scalable CMOS architecture with integrated RFI/EMI filtering and no-phase reversal under overdrive. Its resistive open-loop output impedance simplifies stability with capacitive loads up to 500 pF without external compensation.

Two independent shutdown controls (SHDN12 and SHDN34) enable selective power-down of channel pairs, reducing total supply current to <1 µA in standby. The device operates down to 1.8 V while maintaining rail-to-rail input common-mode range and output swing-critical for single-supply battery-powered signal chains.

Key Specifications

Pinout & Package

TLV9004SIRTER is housed in a 3.0 mm × 3.0 mm, 16-pin WQFN package with an exposed thermal pad (RTE variant). The pad must be connected to V– for optimal thermal performance and EMI suppression.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV9004IRTER and LMV324IPWR, TLV9004SIRTER uniquely combines dual-pair shutdown, 5 pA input bias, and integrated EMI filtering-making it the only option meeting stringent requirements for battery-powered safety and medical edge devices.

Availability

TLV9004SIRTER is available at Aetrix Electronics and suitable for smoke detectors, wearable health monitors, and motor control feedback systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for TLV9004SIRTER 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 precision analog design.

The TLV900x family was developed specifically for cost-sensitive, space-constrained applications demanding low-voltage operation (1.8 V–5.5 V), rail-to-rail performance, and robust capacitive-load drive-targeting consumer, industrial, and automotive sensing markets.

FAQ

What is the function of SHDN12 and SHDN34 on the TLV9004SIRTER?

SHDN12 and SHDN34 are independent active-high shutdown controls: SHDN12 disables channels 1 and 2, while SHDN34 disables channels 3 and 4. When pulled low, each pair draws <1 µA total supply current. This dual-control architecture enables flexible power management-for example, keeping channels 1–2 active for always-on sensor monitoring while powering down channels 3–4 during idle periods. The TLV9004SIRTER datasheet specifies recovery time from shutdown as 15 µs.

Does TLV9004SIRTER support true single-supply operation?

Yes, TLV9004SIRTER supports true single-supply operation from 1.8 V to 5.5 V with rail-to-rail input common-mode range (V− − 0.1 V to V+ + 0.1 V) and rail-to-rail output swing (within 10 mV of rails at 10 kΩ load). This allows direct interfacing with 1.8 V microcontrollers and ADCs without level-shifting circuitry. The TLV9004SIRTER maintains specified offset and bandwidth across the full supply range.

Can TLV9004SIRTER drive a 1000-pF load reliably?

No-TLV9004SIRTER is characterized for stable operation with up to 500 pF capacitive load per output, as confirmed in the datasheet's "Capacitive-Load Drive" section. Driving 1000 pF may cause peaking or oscillation due to phase margin degradation. For heavier loads, use an external series resistor (e.g., 10 Ω) between TLV9004SIRTER output and the capacitor, or select a buffer with higher capacitive-drive rating.

How does the integrated RFI/EMI filter in TLV9004SIRTER improve system-level EMC?

The integrated RFI/EMI filter in TLV9004SIRTER attenuates high-frequency interference-particularly strong in the 800 MHz–2.5 GHz band-by >30 dB, as measured per IEC 61000-4-3. This eliminates the need for external LC filters or ferrite beads in applications like smoke detectors and wearable devices, directly improving radiated emissions compliance (EN 55032 Class B) and reducing PCB area. The TLV9004SIRTER achieves this without degrading DC accuracy or bandwidth.

Is the thermal pad on TLV9004SIRTER electrically connected internally?

No-the exposed thermal pad on TLV9004SIRTER (WQFN-16, RTE package) is not electrically connected to any internal node. It must be soldered to a PCB copper pour tied to V− (ground in single-supply systems) solely for thermal conduction and EMI shielding. TI's datasheet explicitly states "Connect thermal pad to V−" in Figure 6-14 and Thermal Information tables. Leaving the pad floating degrades thermal resistance by >40% and increases susceptibility to RF coupling.