Texas Instruments TLV2313IDGKR

Overview

TLV2313IDGKR from Texas Instruments is a dual-channel, rail-to-rail input/output precision operational amplifier optimized for low-power, cost-sensitive systems. It delivers 1 MHz gain-bandwidth, 65 µA/ch quiescent current, 0.75 mV typical offset voltage, 26 nV/√Hz input voltage noise at 1 kHz, and operates from 1.8 V to 5.5 V supply - enabling use in battery-powered medical sensors and utility metering front-ends.

For engineers reviewing the TLV2313IDGKR datasheet, TLV2313IDGKR pinout, TLV2313IDGKR application, or TLV2313IDGKR equivalent, this page provides verified package mapping (VSSOP-8), validated dual-amplifier functional context, confirmed temperature range (–40°C to +125°C), and real-world design implications of its rail-to-rail I/O, EMI filtering, and unity-gain stability with ≤150 pF capacitive loads.

Technical Context

The TLV2313IDGKR implements a complementary differential input stage (N- and P-channel pairs) enabling rail-to-rail common-mode input range extending 200 mV beyond supply rails, with a defined transition region where both pairs conduct. Its class AB output stage achieves full rail-to-rail swing - typically within 5 mV of either rail into 100 kΩ - and maintains unity-gain stability up to 150 pF capacitive load without external compensation.

It integrates an internal RF/EMI rejection filter on input pins, exhibits no phase reversal under overdrive, and supports operation across –40°C to +125°C with guaranteed PSRR ≥74 dB and CMRR ≥85 dB (in non-transition VCM range). Input bias current remains ultra-low at ±1 pA, enabling high-impedance sensor interfacing.

Key Specifications

Pinout & Package

VSSOP-8 package (3.00 mm × 3.00 mm body size), thermally enhanced for compact PCB layouts in space-constrained wearables and metering modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MCP6022-I/SN and OPA2313IDGKR, TLV2313IDGKR uniquely balances sub-100 µA/ch power, 1 MHz bandwidth, integrated EMI filtering, and true 1.8 V operation - making it the optimal choice for extended-life, noise-immune, single-supply analog front-ends in metering and wearable systems.

Availability

TLV2313IDGKR is available at Aetrix Electronics and suitable for medical sensor front-ends, smart utility metering, and building automation nodes requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLV2313IDGKR 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 TLVx313 family was designed specifically for cost-sensitive, battery-operated systems requiring rail-to-rail performance, ultra-low quiescent current, and robust EMI immunity - targeting medical, metering, and industrial IoT endpoints.

FAQ

What is the maximum capacitive load the TLV2313IDGKR can drive while maintaining stability?

The TLV2313IDGKR remains unity-gain stable with capacitive loads up to 150 pF. For loads exceeding this value - such as ADC input capacitance combined with PCB trace capacitance - a 10 Ω to 20 Ω series resistor should be added at the output to suppress ringing. This technique is validated in TI's SBOS753B datasheet Figure 19 and applies directly to TLV2313IDGKR in VSSOP-8 packaging.

Does the TLV2313IDGKR support true rail-to-rail input at 1.8 V supply?

Yes. The TLV2313IDGKR guarantees rail-to-rail input operation from (V−) − 0.2 V to (V+) + 0.2 V across its full 1.8 V to 5.5 V supply range, including at 1.8 V. This is achieved via complementary N- and P-channel input stages, as detailed in Section 8.3.2 of the SBOS753B datasheet - ensuring full dynamic range utilization even in ultra-low-voltage wearable applications.

What is the typical input bias current of the TLV2313IDGKR, and why does it matter for sensor interfacing?

The TLV2313IDGKR has a typical input bias current of ±1 pA. This ultra-low value prevents significant voltage drop across high-impedance sources - such as thermistors (>100 kΩ), pH electrodes, or piezoelectric sensors - thereby avoiding measurement errors and baseline drift. At 1 pA, even a 10 MΩ source adds only 10 µV offset, preserving accuracy in precision analog front-ends.

How does the integrated EMI filter in the TLV2313IDGKR improve system-level robustness?

The TLV2313IDGKR incorporates an internal low-pass filter on both input pins that attenuates RF interference (e.g., GSM, Wi-Fi, Bluetooth) before it reaches the core amplifier. This prevents EMI-induced rectification and resulting DC offset shifts - eliminating the need for external RC filters or ferrite beads in designs like currency counters or portable medical devices operating in electrically noisy environments.

Is the TLV2313IDGKR pin-compatible with other packages in the TLVx313 family?

No. TLV2313IDGKR uses the DGK (VSSOP-8) package, which is not pin-compatible with the SOIC-8 (D) variant of the same part number. While both share identical electrical functionality and pin functions, the VSSOP-8 has 0.5 mm lead pitch and 3.00 mm × 3.00 mm body size versus SOIC-8's 1.27 mm pitch and 4.90 mm × 3.91 mm body - requiring separate PCB footprints. Always verify package code before layout.