Renesas UPC277G2(3)-E1-A

Overview

UPC277G2(3)-E1-A from Renesas Electronics is a dual operational amplifier designed for single-supply operation with rail-to-rail input (V− to V+ − 1.5 V) and output swing down to GND, featuring ±2 mV typical input offset voltage, 100,000 typical large-signal voltage gain, and 1.2 mA maximum supply current at +5 V. It serves as a general-purpose signal conditioning IC in battery-powered sensor interfaces and portable analog front-ends.

For engineers reviewing the UPC277G2(3)-E1-A datasheet, UPC277G2(3)-E1-A pinout, UPC277G2(3)-E1-A application, or UPC277G2(3)-E1-A equivalent, key selection criteria include guaranteed low-voltage operation (+3 V to +30 V), GND-referenced output capability, thermal performance up to +125°C ambient, and TSSOP-8 package compatibility with high-density PCB layouts.

Technical Context

This bipolar-input dual op-amp uses a Class C push-pull output stage enabling true GND-level output swing under light load, with input common-mode range extending to V− (GND). Its internal frequency compensation ensures unity-gain stability without external components.

The device supports both single-supply (V+ = +3 to +30 V, V− = GND) and split-supply (±1.5 to ±15 V) configurations. Input bias current flows out of the PNP-input stage, resulting in 14–250 nA typical IB, while channel separation exceeds 120 dB from 1 kHz to 20 kHz - critical for dual-channel signal integrity in mixed-signal systems.

Key Specifications

Pinout & Package

UPC277G2(3)-E1-A is housed in an 8-pin plastic TSSOP package (5.72 mm × 4.4 mm, 0.65 mm pitch), optimized for space-constrained PCBs with 60% smaller mounting area than standard SOP-8.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM358DR and TLV2372IDR, UPC277G2(3)-E1-A uniquely balances GND-referenced output drive, industrial temperature support, and bipolar precision - making it optimal for cost-sensitive, single-supply industrial sensor nodes requiring reliable 125°C operation without rail-to-rail output compromises.

Availability

UPC277G2(3)-E1-A is available at Aetrix Electronics and suitable for industrial control interfaces, portable sensor signal conditioning, and battery-powered data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for UPC277G2(3)-E1-A 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

Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog power, and connectivity solutions for industrial, automotive, and infrastructure markets.

The UPC277G2(3)-E1-A belongs to Renesas' legacy bipolar op-amp product line, engineered specifically for robust, low-cost signal conditioning in single-supply industrial and consumer systems where GND-referenced operation and thermal resilience are essential.

FAQ

What is the maximum operating ambient temperature for UPC277G2(3)-E1-A?

The UPC277G2(3)-E1-A is rated for operation from −40°C to +125°C ambient temperature, meeting industrial-grade thermal requirements. This specification applies to the μPC1251GR-9LG variant family, which UPC277G2(3)-E1-A belongs to per Renesas documentation. Derating begins at TA > 69°C, with power dissipation reduced by −5.5 mW/°C beyond that point to maintain junction temperature within safe limits.

Does UPC277G2(3)-E1-A support true rail-to-rail output?

UPC277G2(3)-E1-A supports rail-to-rail input (V− to V+ − 1.5 V) but not full rail-to-rail output: its output swings from V− (GND) up to V+ − 1.5 V under RL ≥ 2 kΩ load. This GND-referenced output capability is confirmed in the Electrical Characteristics table (VO parameter) and Precautions for Use section of the G17929EJ3V0DS datasheet. The Class C push-pull output stage enables the GND-level sink but limits positive swing by ~1.5 V.

Is UPC277G2(3)-E1-A pin-compatible with other μPC358 variants?

Yes - UPC277G2(3)-E1-A shares identical pinout, package (8-pin TSSOP-5.72 mm), and electrical behavior with μPC358GR-9LG-E1-A and μPC1251GR-9LG-E1-A, as confirmed in the Ordering Information and Pin Configuration sections of the G17929EJ3V0DS datasheet. All three part numbers use the same die and marking-side layout, enabling direct substitution in existing designs without PCB changes.

What is the typical input bias current direction and magnitude for UPC277G2(3)-E1-A?

The UPC277G2(3)-E1-A features PNP-input transistors, causing input bias current to flow *out* of both inputs. Typical IB is 14 nA (min) to 250 nA (max) per input, as specified in the Electrical Characteristics table. This outward current direction must be accounted for in high-impedance feedback networks - for example, using matched resistors on both inputs to minimize offset voltage contribution from IB mismatch.

Can UPC277G2(3)-E1-A operate from a +3.3 V supply?

Yes - UPC277G2(3)-E1-A is fully specified for single-supply operation from +3 V to +30 V, including +3.3 V. At V+ = +3.3 V, the output swing remains 0 V to ~1.8 V (V+ − 1.5 V), and input common-mode range covers 0 V to ~1.8 V. Electrical characteristics such as VIO, AV, and ICC remain valid per the Recommended Operating Conditions and Electrical Characteristics tables in the G17929EJ3V0DS datasheet.