Texas Instruments OPA2363IDGST

Overview

OPA2363IDGST from Texas Instruments is a dual, rail-to-rail input/output, 7-MHz bandwidth CMOS operational amplifier optimized for single-supply operation from 1.8 V to 5.5 V. It delivers 90-dB typical CMRR, 5 V/µs slew rate, and 900 µV maximum input offset voltage across –40°C to +125°C, serving as a precision signal conditioner in battery-powered sensor interfaces and microphone preamplifiers.

For engineers reviewing the OPA2363IDGST datasheet, OPA2363IDGST pinout, OPA2363IDGST application, or OPA2363IDGST equivalent, key selection criteria include its dual-channel architecture with independent shutdown control per channel, low 750 µA/channel quiescent current at 1.8 V, and guaranteed rail-to-rail output swing within 20 mV of supply rails under full temperature range.

Technical Context

The OPA2363IDGST implements a complementary CMOS input stage that eliminates crossover distortion, enabling high-precision DC-coupled amplification without degradation of differential linearity when driving ADCs. Its unity-gain stable design supports active filter and signal conditioning configurations with minimal external compensation.

Each channel features independent logic-controlled shutdown (Enable A/B), reducing quiescent current to <1 µA per channel while maintaining fast 1-µs turnoff and 20-µs turnon times. The device operates over the full industrial temperature range (–40°C to +125°C) with specified performance at 1.8 V, 3.6 V, and 5.5 V supply voltages.

Key Specifications

Pinout & Package

The OPA2363IDGST is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained PCB layouts while maintaining thermal performance (R_θJA = 166.4°C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA2363IDGST, OPA2364IDGKR trades shutdown flexibility for reduced package size and lower unit cost, while TLV2462IDR offers broader temperature support but sacrifices bandwidth, offset accuracy, and 1.8-V rail-to-rail input capability-making OPA2363IDGST optimal for new ultra-low-power, dual-channel precision designs.

Availability

OPA2363IDGST is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and battery-powered audio interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for OPA2363IDGST 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 OPA2363IDGST belongs to TI's OPAx363 family-designed specifically for high-accuracy, ultra-low-voltage signal conditioning in energy-constrained, wide-temperature industrial and portable applications.

FAQ

What is the minimum supply voltage for reliable operation of the OPA2363IDGST?

The OPA2363IDGST is fully specified for operation from 1.8 V to 5.5 V. At 1.8 V, it maintains 7-MHz gain-bandwidth, 5 V/µs slew rate, and rail-to-rail input/output swing across –40°C to +125°C. Below 1.8 V, parameters such as CMRR, offset voltage, and output drive capability degrade outside guaranteed limits-so 1.8 V is the validated minimum for production use of OPA2363IDGST.

Does the OPA2363IDGST support true rail-to-rail input at 1.8 V supply?

Yes, the OPA2363IDGST supports rail-to-rail input common-mode range from (V−) − 0.1 V to (V+) + 0.1 V at all supply voltages including 1.8 V. This is enabled by its complementary CMOS input stage, which avoids crossover distortion and ensures linear operation even when inputs approach or slightly exceed the supply rails-critical for interfacing with resistive sensors or DAC outputs in OPA2363IDGST-based designs.

How does the shutdown feature of the OPA2363IDGST behave during power-up?

The OPA2363IDGST has no built-in power-on reset for its Enable A/B pins. During power-up, if Enable A or B is left floating or pulled low, that channel remains disabled until a valid high logic level (>0.75 × V+) is applied. To ensure predictable startup, TI recommends tying Enable A/B to V+ via a weak pullup or controlling them synchronously with system power sequencing-this guarantees both channels of OPA2363IDGST activate cleanly after V+ stabilizes.

Can the OPA2363IDGST drive capacitive loads up to 100 pF without oscillation?

Yes, the OPA2363IDGST is unity-gain stable and characterized for driving ≥100 pF capacitive loads, as confirmed in the datasheet's small-signal step response (Figure 19) and overshoot vs. load capacitance plots (Figure 13). For loads exceeding 100 pF, TI recommends adding a series resistor (10–50 Ω) between the OPA2363IDGST output and the capacitive node to maintain phase margin and prevent peaking-especially critical in high-impedance sensor buffering applications.

What is the maximum output current capability of the OPA2363IDGST at 1.8 V supply?

At 1.8 V supply, the OPA2363IDGST delivers ±35 mA short-circuit output current (per channel), as shown in Figure 9 of the datasheet. Under linear operation into 10-kΩ loads, output swing remains within 20 mV of the rails. For sustained loads >10 mA, thermal considerations apply-its 166.4°C/W junction-to-ambient thermal resistance in the DGS package requires careful PCB copper area design to avoid exceeding 125°C junction temperature in OPA2363IDGST applications.