Texas Instruments OPA2607QDGKRQ1

Overview

OPA2607QDGKRQ1 from Texas Instruments is a dual-channel, automotive-grade, rail-to-rail output CMOS operational amplifier optimized for low-voltage, high-bandwidth signal conditioning in safety-critical systems. It delivers 50-MHz gain-bandwidth product, 24-V/µs slew rate, 3.8-nV/√Hz input voltage noise, ±10-pA max input bias current, and operates from 2.2 V to 5.5 V across –40°C to +125°C. It is used in high-precision current sensing and transimpedance amplification within e-Turbo and HVAC compressor modules.

For engineers reviewing the OPA2607QDGKRQ1 datasheet, OPA2607QDGKRQ1 pinout, OPA2607QDGKRQ1 application, or OPA2607QDGKRQ1 equivalent, key selection criteria include minimum stable gain (6 V/V), rail-to-rail output swing (≤12 mV from rails), AEC-Q100 Grade 1 qualification, decompensated architecture stability constraints, and VSSOP-8 thermal performance (R_θJA = 179°C/W).

Technical Context

The OPA2607QDGKRQ1 employs a decompensated CMOS architecture requiring ≥6 V/V noise gain for stability, enabling its 50-MHz GBW and 24-V/µs slew rate at only 900-µA quiescent current per channel. Its input stage features ultra-low input bias current (±10 pA max) and 1.5-µV/°C max offset drift, supporting precision DC-coupled sensor interfaces like piezoelectric transducers and low-side shunt monitors.

Rail-to-rail output swing (≤12 mV from supply rails) maximizes dynamic range into ADCs in low-voltage automotive domains. Internal ESD protection meets AEC-Q100 HBM (±2 kV) and CDM (±1 kV) requirements, and the device drives up to 47 pF capacitive load without external isolation resistance while maintaining ≥45° phase margin.

Key Specifications

Pinout & Package

VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65-mm lead pitch, exposed thermal pad (not electrically connected), RoHS-compliant, moisture sensitivity level 2a.

Key Features

Applications

Equivalent & Alternatives

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

Compared with OPA2365QDGKRQ1 and LM7332QMA/NOPB, the OPA2607QDGKRQ1 uniquely combines AEC-Q100 Grade 1 qualification, decompensated 50-MHz GBW, 3.8-nV/√Hz noise, and CMOS input impedance - making it optimal for high-fidelity, low-power sensor signal chains in next-generation electrified vehicle subsystems.

Availability

OPA2607QDGKRQ1 is available at Aetrix Electronics and suitable for DC/DC converter current sensing, inverter motor control, and HVAC compressor module designs requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100-compliant traceability.

Supply support for OPA2607QDGKRQ1 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 delivering analog and embedded processing solutions, with deep expertise in automotive electronics, precision amplifiers, and functional safety design.

The OPAx607-Q1 product line was engineered specifically for high-bandwidth, low-noise, AEC-Q100-compliant signal conditioning in electrified vehicle powertrain and chassis systems - emphasizing rail-to-rail output, low quiescent current, and decompensated stability for sensor and current-sense front-ends.

FAQ

What is the minimum stable gain for OPA2607QDGKRQ1?

The OPA2607QDGKRQ1 requires a minimum noise gain of 6 V/V (15.56 dB) for stable operation. This is due to its decompensated architecture, which trades unity-gain stability for higher GBW (50 MHz) and lower noise. Configurations with noise gain below 6 V/V risk oscillation or excessive ringing. Always verify stability using phase margin analysis or TI's TINA-TI simulation models for OPA2607QDGKRQ1.

Does OPA2607QDGKRQ1 support single-supply operation?

Yes, OPA2607QDGKRQ1 fully supports single-supply operation from 2.2 V to 5.5 V. Its input common-mode range extends to the negative rail (VS–), and its rail-to-rail output swings within 12 mV of both supply rails. This enables direct interfacing with 3.3-V or 5-V microcontrollers and ADCs without level-shifting circuitry - a key advantage in space-constrained automotive modules.

What is the maximum capacitive load OPA2607QDGKRQ1 can drive without external isolation?

OPA2607QDGKRQ1 can drive up to 47 pF of capacitive load directly at the output while maintaining ≥45° phase margin and stable operation. For loads exceeding 47 pF, Texas Instruments recommends adding a series isolation resistor (R_ISO) close to the output pin. The required R_ISO value depends on load capacitance and closed-loop gain - refer to Figure 7-18 in the OPA2607QDGKRQ1 datasheet for exact values.

Is OPA2607QDGKRQ1 pin-compatible with other dual op-amps in VSSOP-8?

No, OPA2607QDGKRQ1 has a unique pinout optimized for dual-channel symmetry and thermal performance in automotive applications. It is not pin-compatible with generic VSSOP-8 op-amps such as LMV358 or TLV2372. Layout reuse requires verification against the official OPA2607QDGKRQ1 pin configuration diagram (Figure 6-2), especially the placement of VS– (Pin 4) and VS+ (Pin 8) relative to the output pins.

How does the input offset drift of OPA2607QDGKRQ1 affect system accuracy over temperature?

OPA2607QDGKRQ1 specifies a maximum input offset drift of 1.5 µV/°C over –40°C to +125°C. Over this 165°C range, total drift contributes ≤±0.25 mV additional offset error. In a 100-mΩ shunt-based current sense with 10-V/V gain, this translates to <±2.5 mA error - well within ASIL-B diagnostic coverage thresholds for motor control and battery monitoring systems using OPA2607QDGKRQ1.