OPA1679-Q1 Series

Automotive quad-channel, low-noise 4.5-nV/rtHz, low-distortion 120-dB, audio operational amplifier

Catalog

Automotive quad-channel, low-noise 4.5-nV/rtHz, low-distortion 120-dB, audio operational amplifier

Part	Voltage - Input Offset	Supplier Device Package	Mounting Type	Qualification	Voltage - Supply Span (Max) [Max]	Current - Supply	Grade	Output Type	Package / Case	Current - Output / Channel	Operating Temperature [Min]	Operating Temperature [Max]	Amplifier Type	Slew Rate	Gain Bandwidth Product	Voltage - Supply Span (Min) [Min]	Current - Input Bias	Number of Circuits	-3db Bandwidth	Package / Case [x]	Package / Case [y]
Texas Instruments OPA1679QRUMRQ1	500 çV	16-WQFN (4x4)	Surface Mount	AEC-Q100	36 V	2 mA	Automotive	Rail-to-Rail	16-WQFN Exposed Pad	50 mA	-40 °C	125 °C	Audio	9 V/µs	16 MHz	4.5 V	10 pA	4	20 kHz
Texas Instruments OPA1679IRUMR	500 çV	16-WQFN (4x4)	Surface Mount		36 V	2 mA		Rail-to-Rail	16-WQFN Exposed Pad	50 mA	-40 °C	85 °C	Audio	9 V/µs	16 MHz	4.5 V	10 pA	4
Texas Instruments OPA1679IRUMT	500 çV	16-WQFN (4x4)	Surface Mount		36 V	2 mA		Rail-to-Rail	16-WQFN Exposed Pad	50 mA	-40 °C	85 °C	Audio	9 V/µs	16 MHz	4.5 V	10 pA	4
Texas Instruments OPA1679IDR	500 çV		Surface Mount		36 V	2 mA		Rail-to-Rail	14-SOIC	50 mA	-40 °C	85 °C	Audio	9 V/µs	16 MHz	4.5 V	10 pA	4		0.154 in	3.9 mm

Catalog

Automotive quad-channel, low-noise 4.5-nV/rtHz, low-distortion 120-dB, audio operational amplifier

Key Features

• Low noise: 4.5 nV/√Hzat 1 kHzLow distortion: 0.0001% at 1 kHzHigh open-loop gain: 114 dBHigh common-mode rejection: 110 dBLow quiescent current:2 mA per channelLow input bias current: 10 pA (typical)Slew rate: 9 V/µsWide gain bandwidth: 16 MHz (G = 1)Unity-gain stableRail-to-rail outputWide supply range:±2.25 V to ±18 V, or 4.5 V to 36 VSingle, dual, and quad-channel versionsAvailable packages:Single: SOIC-8, SOT-23Dual: SOIC-8, small SON-8, VSSOP-8Quad: Small QFN-16, SO-14, TSSOP-14Temperature range: –40°C to +85°CLow noise: 4.5 nV/√Hzat 1 kHzLow distortion: 0.0001% at 1 kHzHigh open-loop gain: 114 dBHigh common-mode rejection: 110 dBLow quiescent current:2 mA per channelLow input bias current: 10 pA (typical)Slew rate: 9 V/µsWide gain bandwidth: 16 MHz (G = 1)Unity-gain stableRail-to-rail outputWide supply range:±2.25 V to ±18 V, or 4.5 V to 36 VSingle, dual, and quad-channel versionsAvailable packages:Single: SOIC-8, SOT-23Dual: SOIC-8, small SON-8, VSSOP-8Quad: Small QFN-16, SO-14, TSSOP-14Temperature range: –40°C to +85°C

Description

The single-channel OPA1677, dual-channel OPA1678, and quad-channel OPA1679 (OPA167x) op amps offer higher system-level performance over legacy op amps commonly used in audio circuitry. The OPA167x amplifiers achieve a low 4.5-nV/√Hznoise density and low distortion of 0.0001% at 1 kHz, which improves audio signal fidelity. These devices also offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. To accommodate the power-supply constraints of many types of audio products, the OPA167x operate over a very-wide supply range of ±2.25 V to ±18 V (or 4.5 V to 36 V) on only 2 mA of supply current. These op amps are unity-gain stable and have excellent dynamic behavior over a wide range of load conditions, allowing the OPA167x to be used in many audio circuits. The OPA167x amplifiers use completely independent internal circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded. The single-channel OPA1677, dual-channel OPA1678, and quad-channel OPA1679 (OPA167x) op amps offer higher system-level performance over legacy op amps commonly used in audio circuitry. The OPA167x amplifiers achieve a low 4.5-nV/√Hznoise density and low distortion of 0.0001% at 1 kHz, which improves audio signal fidelity. These devices also offer rail-to-rail output swing to within 800 mV with a 2-kΩ load, which increases headroom and maximizes dynamic range. To accommodate the power-supply constraints of many types of audio products, the OPA167x operate over a very-wide supply range of ±2.25 V to ±18 V (or 4.5 V to 36 V) on only 2 mA of supply current. These op amps are unity-gain stable and have excellent dynamic behavior over a wide range of load conditions, allowing the OPA167x to be used in many audio circuits. The OPA167x amplifiers use completely independent internal circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded.