INA1620 Series

High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering

Catalog

High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering

Part	Current - Input Bias	Amplifier Type	Voltage - Input Offset	Voltage - Supply Span (Min) [Min]	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply Span (Max) [Max]	Number of Circuits	Mounting Type	Supplier Device Package	Package / Case	Current - Output / Channel	Slew Rate	Max Output Power x Channels @ Load	Max Output Power x Channels @ Load [custom]	Supplied Contents	Voltage - Supply	Output Type	Utilized IC / Part	Board Type
Texas Instruments INA1620RTWR	1.2 µA	Audio	100 çV	4 V	2.6 mA	125 °C	-40 °C	36 V	2	Surface Mount	24-WQFN (4x4)	24-WFQFN Exposed Pad	145 mA	10 V/çs
Texas Instruments INA1620EVM		Class AB													142 mW	2	Board(s)	15 V	Headphones 2-Channel (Stereo)	INA1620	Fully Populated

Catalog

High-fidelity audio operational amplifier with integrated thin-film resistors and EMI filtering

Key Features

• High-Quality Thin-Film ResistorsMatched to 0.004% (Typical)Integrated EMI FiltersUltra-low Noise: 2.8 nV/√Hzat 1 kHzUltra-low 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/µsHigh Capacitive-Load Drive Capability: > 600 pFHigh Open-Loop Gain: 136 dB (600-Ω Load)Low Quiescent Current: 2.6 mA per ChannelLow-Power Shutdown Mode With Reduced Pop-and-Click Noise: 5 µA per ChannelShort-Circuit ProtectionWide Supply Range: ±2 V to ±18 VAvailable in Small 24-pin WQFN PackageHigh-Quality Thin-Film ResistorsMatched to 0.004% (Typical)Integrated EMI FiltersUltra-low Noise: 2.8 nV/√Hzat 1 kHzUltra-low 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/µsHigh Capacitive-Load Drive Capability: > 600 pFHigh Open-Loop Gain: 136 dB (600-Ω Load)Low Quiescent Current: 2.6 mA per ChannelLow-Power Shutdown Mode With Reduced Pop-and-Click Noise: 5 µA per ChannelShort-Circuit ProtectionWide Supply Range: ±2 V to ±18 VAvailable in Small 24-pin WQFN Package

Description

The INA1620 integrates 4 precision-matched thin-film resistor pairs and EMI filtering on-chip with a low-distortion, high output current, dual audio operational amplifier. The amplifier achieves a very low,2.8-nV/√Hznoise density with an ultra-low THD+N of –119.2 dB at 1 kHz and drives a 32-Ω load at 150-mW output power. The integrated thin-film resistors are matched to within 0.004% and can be used to create a large number of very high-performance audio circuits. The INA1620 operates over a very wide supply range of ±2 V to ±18 V on only 2.6 mA of supply current per channel. The INA1620 also has a shutdown mode, allowing the amplifiers to be switched from normal operation to a standby current that is typically less than 5 µA. Shutdown mode is specifically designed to eliminate click-and-pop noise when transitioning into or out of shutdown mode. The INA1620 has 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. The INA1620 integrates 4 precision-matched thin-film resistor pairs and EMI filtering on-chip with a low-distortion, high output current, dual audio operational amplifier. The amplifier achieves a very low,2.8-nV/√Hznoise density with an ultra-low THD+N of –119.2 dB at 1 kHz and drives a 32-Ω load at 150-mW output power. The integrated thin-film resistors are matched to within 0.004% and can be used to create a large number of very high-performance audio circuits. The INA1620 operates over a very wide supply range of ±2 V to ±18 V on only 2.6 mA of supply current per channel. The INA1620 also has a shutdown mode, allowing the amplifiers to be switched from normal operation to a standby current that is typically less than 5 µA. Shutdown mode is specifically designed to eliminate click-and-pop noise when transitioning into or out of shutdown mode. The INA1620 has 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.