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OPA1662AIDGKRQ1

Audio Amplifier 2 Circuit Rail-to-Rail 8-VSSOP

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

OPA1662AIDGKRQ1
Datasheet:

OPA1662AIDGKRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Amplifier Type:

Audio
Number of Circuits:

2
Output Type:

Rail-to-Rail
EDA/CAD Models:

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OPA1662AIDGKRQ1 General Description

The OPA1662-Q1 is a dual, bipolar-input operational amplifier which is well suited for premium audio external amplifier applications in infotainment and cluster systems. In audio systems, the main concern is to ensure a clear, quality output signal which means minimuzing any noise introduced to the signal. The OPA1662-Q1 offers low noise density with an ultra-low distortion of 0.00006% at 1 kHz that maximizes the signal output. Additionally, this op amp offers rail-to-rail output swing to within 600 mV with 2-kΩ load. The wide headroom ensures that the output signal does not clip, and therefore preserves the audio quality.

The OPA1662-Q1 operates over a very wide supply range of ±1.5 V to ±18 V, or 3 V to 36 V, on only 1.5 mA of supply current per channel. The wide supply range enables design flexibility for the device as it can be integrated from a power amplifier driven by the battery to being driven from an ADC to DAC for low-power applications. Additionally, this device also has a high-output drive capability of ±30 mA and can act as the sole audio amplifier for low-power applications, such as for cluster chimes.

The device also features completely independent circuitry for each of the two channels to enable low crosstalk and freedom from interactions between each channel, even when overdriven or overloaded. This feature enables customers to drive two different audio signals with ease of mind that the signals are not affected by each other.

The OPA1662-Q1 offers a wide bandwidth of 22 MHz and high slew rate of 17 V/µs which is applicable as a high and low side sensing for ripple currents in SMPS devices or motor drives. As a current sensor, the OPA1662-Q1 can be used as peak current mode control, with the op amps offering stability and enabling higher bandwidth for the system. The OPA1662-Q1 is applicable in body control modules and HEV or EV converters where motors typically are used.

Key Features

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results
- Device Temperature Grade 3: –40°C to 85°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
Low Noise: 3.3 nV/√Hz at 1 kHz
Low Distortion: 0.00006% at 1 kHz
Low Quiescent Current: 1.5 mA per Channel
Slew Rate: 17 V/µs
Wide Gain Bandwidth: 22 MHz (G = 1)
Unity Gain Stable
Rail-to-Rail Output
Wide Supply Range: ±1.5 V to ±18 V,
or 3 V to 36 V
Small Package Sizes:
Dual: 8-Pin SOIC and VSSOP

Specifications

Category	Integrated Circuits (ICs)LinearAmplifiersInstrumentation, OP Amps, Buffer Amps	Series	Automotive, AEC-Q100
Amplifier Type	Audio	Number of Circuits	2
Output Type	Rail-to-Rail	Slew Rate	17V/µs
Gain Bandwidth Product	22 MHz	Current - Input Bias	600 nA
Voltage - Input Offset	500 µV	Current - Supply	1.5mA (x2 Channels)
Current - Output / Channel	50 mA	Voltage - Supply Span (Min)	3 V
Voltage - Supply Span (Max)	36 V	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Base Product Number	OPA1662
Number of channels	2	Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	3
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	36	GBW (typ) (MHz)	22
Slew rate (typ) (V/µs)	17	Rail-to-rail	Out
Vos (offset voltage at 25°C) (max) (mV)	1.5	Iq per channel (typ) (mA)	1.5
Vn at 1 kHz (typ) (nV√Hz)	3.3	Features	Burr-Brown™ Audio
THD + N at 1 kHz (typ) (%)	0.0002	Rating	Automotive
Operating temperature range (°C)	-40 to 85	Iout (typ) (A)	0.04
Architecture	Bipolar	CMRR (typ) (dB)	100
Input bias current (max) (pA)	1200000