OPA1641 Texas instruments

OPA1641

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OPA1641

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Описание

The OPA1641 (single), OPA1642 (dual), and OPA1644 (quad) series are JFET-input, ultralow distortion, low-noise operational amplifiers fully specified for audio applications. The OPA1641, OPA1642, and OPA1644 rail-to-rail output swing allows increased headroom, making these devices ideal for use in any audio circuit. Features include 5.1-nV/√Hz noise, low THD+N (0.00005%), a low input bias current of 2 pA, and low quiescent current of 1.8 mA per channel. These devices operate over a very wide supply voltage range of ±2.25 V to ±18 V. The OPA1641, OPA1642, and OPA1644 series of operational amplifiers are unity-gain stable and provide excellent dynamic behavior over a wide range of load conditions. The dual and quad versions feature completely independent circuitry for lowest crosstalk and freedom from interactions between channels, even when overdriven or overloaded. The OPA1641, OPA1642, and OPA1644 are specified from –40°C to +85°C.

Superior Sound Quality
True JFET Input Operational Amplifier
With Low Input Bias Current
Low Noise: 5.1 nV/√Hz at 1 kHz
Ultralow Distortion: 0.00005% at 1 kHz
High Slew Rate: 20 V/µs
Unity Gain Stable
No Phase Reversal
Low Quiescent Current:
1.8 mA per Channel
Rail-to-rail Output
Wide Supply Range: ±2.25 V to ±18 V
Single, Dual, and Quad Versions Available

Number of channels	1
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	5
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	36
GBW (typ) (MHz)	11
Slew rate (typ) (V/µs)	20
Rail-to-rail	In to V-, Out
Vos (offset voltage at 25°C) (max) (mV)	3.5
Iq per channel (typ) (mA)	1.8
Vn at 1 kHz (typ) (nV√Hz)	5.1
Features	Burr-Brown™ Audio, EMI Hardened, Premium Sound
THD + N at 1 kHz (typ) (%)	0.00005
Rating	Catalog
Operating temperature range (°C)	-40 to 85
Iout (typ) (A)	0.03
Architecture	FET
CMRR (typ) (dB)	126
Input bias current (max) (pA)	20