STMicroelectronics TSV7722IYDT

Overview

TSV7722IYDT from STMicroelectronics is a dual, rail-to-rail output, low-input-offset-voltage operational amplifier optimized for precision low-side current sensing and photodiode amplification in automotive and industrial systems. It delivers 22 MHz gain bandwidth, 50 µV typical input offset voltage (200 µV max), 2 pA typical input bias current, and operates from 1.8 V to 5.5 V single supply with input common-mode range extending to the negative rail.

For engineers reviewing the TSV7722IYDT datasheet, TSV7722IYDT pinout, TSV7722IYDT application, or TSV7722IYDT equivalent, key selection criteria include its rail-to-rail output swing, ultra-low input bias current enabling high-impedance sensor interfacing, guaranteed 22 MHz bandwidth at 47 pF load, and AEC-Q100 Grade 1 qualification for automotive use.

Technical Context

The TSV7722IYDT implements a unity-gain-stable voltage-feedback architecture with 22 MHz gain-bandwidth product and 44° phase margin at 5 V, CL = 47 pF. Its input stage uses precision-trimmed CMOS transistors to achieve 50 µV typ. V_OS and 2 pA typ. I_IB, while supporting common-mode voltages down to V_CC– – 0.1 V - critical for accurate low-side shunt monitoring.

It features rail-to-rail output swing with ±70 mA output drive capability at 5 V, 1.7 mA per channel quiescent current, and 7 nV/√Hz input voltage noise density at 10 kHz. The device is fully characterized across –40°C to +125°C and qualified to AEC-Q100 Grade 1 standards.

Key Specifications

Pinout & Package

TSV7722IYDT is supplied in MiniSO8 package (3.9 mm × 4.9 mm, 1.27 mm pitch), thermally enhanced with exposed pad connected to V_CC–.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TSV7722IYDT, TSV792IDT trades DC accuracy for bandwidth, while TSB7192IYDT sacrifices low-voltage compatibility for high-supply operation - neither matches its combination of 22 MHz GBW, 200 µV max. V_OS, 2 pA I_IB, and AEC-Q100 Grade 1 qualification in 1.8–5.5 V systems.

Availability

TSV7722IYDT is available at Aetrix Electronics and suitable for automotive battery management, industrial current monitoring, and optical sensor signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TSV7722IYDT 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and analog components for automotive, industrial, and consumer markets.

The TSV772x series belongs to ST's precision operational amplifier product line, engineered specifically for high-accuracy, high-bandwidth sensor interface applications in harsh environments - emphasizing low offset, rail-to-rail operation, and automotive-grade reliability.

FAQ

What is the maximum capacitive load the TSV7722IYDT can drive stably?

The TSV7722IYDT is guaranteed stable with 47 pF capacitive load in unity-gain configuration. For loads exceeding 47 pF, stability can be restored by adding a 10–22 Ω isolation resistor (R_ISO) in series with the output. This maintains DC accuracy while suppressing peaking and ringing observed in step responses above 100 pF.

Does the TSV7722IYDT support single-supply operation with input signals at ground potential?

Yes - the input common-mode range extends to V_CC– – 0.1 V, allowing direct connection to ground-referenced shunts or sensors. This makes it ideal for low-side current sensing where the inverting input sits at 0 V, and the non-inverting input is biased near ground.

How does the TSV7722IYDT handle unused op-amp channels?

An unused channel must be configured either as a unity-gain buffer (with inputs tied within Vicm range) or as an open-loop comparator (with ≥100 mV differential input). Leaving inputs floating or shorted risks internal oscillation, increased supply current, and degraded performance on the active channel.

Is the TSV7722IYDT pin-compatible with other ST dual op-amps in MiniSO8?

No - the TSV7722IYDT uses a standard dual-op-amp pinout (OUT1, IN1−, IN1+, V_CC–, IN2+, IN2−, OUT2, V_CC+), but it is not pin-compatible with ST's TSV712 or TSZ122 due to differing pin assignments for supply and inputs. Always verify pin mapping against DS13614 Rev 7.