Texas Instruments OPA2364AIDGKT

Overview

OPA2364AIDGKT from Texas Instruments is a dual, rail-to-rail input/output CMOS operational amplifier optimized for 1.8-V to 5.5-V single-supply operation. It delivers 7-MHz gain-bandwidth, 5-V/µs slew rate, and 90-dB typical CMRR, with ±10-pA input bias current and 500-µV maximum input offset voltage. It serves as a precision signal conditioner in battery-powered sensor interfaces and microphone preamplifiers.

For engineers reviewing the OPA2364AIDGKT datasheet, OPA2364AIDGKT pinout, OPA2364AIDGKT application, or OPA2364AIDGKT equivalent, key selection considerations include its dual-channel rail-to-rail I/O performance at ultra-low supply voltage, low quiescent current (750 µA/channel max), and guaranteed operation from –40°C to +125°C in industrial environments.

Technical Context

The OPA2364AIDGKT uses a complementary CMOS input stage that eliminates crossover distortion, enabling high common-mode rejection (90 dB typ) without degradation of differential linearity-critical when driving SAR or delta-sigma ADCs. Its unity-gain stable architecture supports active filters, transimpedance amplifiers, and precision buffer stages without external compensation.

It operates across 1.8 V to 5.5 V with rail-to-rail input common-mode range (extending 0.1 V beyond both rails) and output swing within 20 mV of each rail under full load. Input voltage noise is 17 nV/√Hz at 10 kHz, and THD+N is 0.002% at 20 Hz–20 kHz with 5-V supply and G = 1.

Key Specifications

Pinout & Package

OPA2364AIDGKT is packaged in an 8-pin VSSOP (DGK) with 3.00 mm × 3.00 mm body size and 0.5-mm lead pitch. The package supports fine-pitch routing and thermal performance suitable for space-constrained portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA2364AIDGKT, OPA2333AIDGKR offers superior DC stability but sacrifices bandwidth and power efficiency, while MCP6022-I/SN trades precision and temperature range for cost and supply flexibility-making OPA2364AIDGKT optimal for industrial-grade, low-voltage, dual-channel signal chains demanding balanced AC/DC performance.

Availability

OPA2364AIDGKT is available at Aetrix Electronics and suitable for electret microphone preamplifiers, portable data acquisition systems, and industrial process control loops requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for OPA2364AIDGKT 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 amplifiers and low-power signal chain solutions.

The OPA2364AIDGKT belongs to TI's OPAx364 family of rail-to-rail I/O op amps designed specifically for high-fidelity, low-voltage signal conditioning in battery-powered and industrial sensing applications.

FAQ

What is the maximum supply voltage for OPA2364AIDGKT?

The OPA2364AIDGKT supports a maximum supply voltage of 5.5 V across the V+ to V– terminals. Operation above this limit risks permanent damage per Absolute Maximum Ratings. At 5.5 V, quiescent current reaches 1.4 mA per channel, and output swing remains within 20 mV of rails under 10-kΩ load. Always decouple V+ and V– with ≥100 nF ceramic capacitors close to the DGK package pins.

Does OPA2364AIDGKT have shutdown capability?

No, OPA2364AIDGKT does not include a shutdown pin. That feature is exclusive to the OPA2363 variant (e.g., OPA2363AIDGKR), which adds enable control on pins 5 and 6 of the 10-pin VSSOP package. The OPA2364AIDGKT is a fixed-function dual op amp with continuous operation-ideal for applications where predictable, always-on behavior is required without control logic overhead.

Can OPA2364AIDGKT drive capacitive loads directly?

OPA2364AIDGKT is unity-gain stable and can drive up to 100 pF capacitive load without oscillation, as verified in the datasheet's Typical Characteristics (Figure 13). For loads exceeding 100 pF-such as ADC input capacitance plus PCB trace-add a 10- to 50-Ω isolation resistor between the OPA2364AIDGKT output and the load to maintain phase margin and prevent peaking or ringing.

What is the input common-mode voltage range of OPA2364AIDGKT?

The input common-mode voltage range of OPA2364AIDGKT extends from (V–) – 0.1 V to (V+) + 0.1 V, enabling true rail-to-rail input operation. This allows direct interfacing with sensors whose output swings near ground or supply, such as resistive bridges biased at mid-supply or electret microphones with DC bias. Performance remains specified across this full range at all temperatures from –40°C to +125°C.

Is OPA2364AIDGKT suitable for driving ADC inputs?

Yes, OPA2364AIDGKT is explicitly optimized for driving ADC inputs. Its high CMRR (90 dB typ), low THD+N (0.002%), and absence of phase reversal prevent distortion and code errors in SAR and delta-sigma converters. With 7-MHz GBW and 5-V/µs slew rate, it settles to 0.01% in 1.5 µs for a 4-V step-meeting timing requirements for 1 MSPS ADCs when paired with appropriate anti-alias filtering.