OPA1622 Texas instruments

OPA1622

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OPA1622

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Описание

The OPA1622, dual, bipolar-input, SoundPlus™ audio operational amplifier achieves a very low, 2.8-nV/√Hz noise density with an ultralow THD+N of –119.2 dB at 1 kHz, while driving a 32-Ω load at 100-mW output power. The OPA1622 offers extremely-high ac PSRR and CMRR specifications that eliminate noise from power supplies, making the OPA1622 ideal for use in portable-audio applications. This device also has a high output-drive capability of +145 mA / –130 mA. The OPA1622 operates over a very wide supply range of ±2 V to ±18 V, on only 2.6 mA of supply current per channel. The OPA1622 op amp is unity-gain stable and provides excellent dynamic behavior over a wide range of load conditions. The OPA1622 includes a shutdown mode, allowing the amplifiers to be switched from normal operation to a standby current that is typically less than 5 µA. This shutdown feature is specifically designed to eliminate click and pop noise when transitioning into or out of shutdown mode. The OPA1622 features a unique internal layout for lowest crosstalk, and freedom from interactions between channels, even when overdriven or overloaded. This device is specified from –40°C to +125°C.

High-Fidelity Sound Quality
Ultralow Noise: 2.8 nV/√Hz at 1 kHz
Ultralow Total Harmonic Distortion + Noise:
–119 dB THD+N (142 mW/Ch into 32 Ω/Ch)
Wide Gain Bandwidth Product:
32 MHz (G = +1000)
High Slew Rate: 10 V/µs
High Capacitive-Load Drive Capability: > 600 pF
High Open-Loop Gain: 136 dB (600-Ω Load)
Low Quiescent Current: 2.6 mA per Channel
Low-Power Shutdown Mode With Reduced Pop
and Click Noise: 5 µA per Channel
Short-Circuit Protection
Wide Supply Range: ±2 V to ±18 V
Available in small VSON-10 µPackage

Number of channels	2
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	4
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	36
GBW (typ) (MHz)	32
Slew rate (typ) (V/µs)	10
Rail-to-rail	No
Vos (offset voltage at 25°C) (max) (mV)	0.5
Iq per channel (typ) (mA)	2.6
Vn at 1 kHz (typ) (nV√Hz)	2.8
Features	Burr-Brown™ Audio, High Cload Drive, Premium Sound, Shutdown, Small Size
THD + N at 1 kHz (typ) (%)	0.000018
Rating	Catalog
Operating temperature range (°C)	-40 to 125
Iout (typ) (A)	0.145
Product type	Ultimate
Architecture	Bipolar
CMRR (typ) (dB)	127
Input bias current (max) (pA)	2000000