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See Technical Specifications

OPA1632DGN

Fully Differential I/O Audio Amplifier

Manufacturer: Texas Instruments, Inc
Mfr.Part #: OPA1632DGN
Datasheet: OPA1632DGN Datasheet (PDF)
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): 30
GBW (typ) (MHz): 180
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OPA1632DGN General Description

The OPA1632 is a fully differential amplifier (FDA) designed to drive high-performance audio analog-to-digital converters (ADCs) or as a predriver for class-D amplifiers.

The OPA1632 delivers excellent audio quality, very low noise, large output voltage swing, and high current drive. The OPA1632 has an excellent gain bandwidth of 180 MHz, and a very fast slew rate of 72 V/µs that helps to produce exceptionally low distortion. A very low input voltage noise of 1.25 nV/√Hz further provides maximum signal-to-noise ratio and dynamic range.

The flexibility of the fully differential architecture allows for easy implementation of a single-ended to fully differential output conversion. Differential output reduces even-order harmonics and minimizes common-mode noise interference. The OPA1632 provides excellent performance when used to drive high-performance audio ADCs such as the PCM1804. A shutdown feature is included to save power when the device is not in use.

The OPA1632 is characterized to operate from –40°C to +85°C and is available in an SO-8 package and a thermally-enhanced HVSSOP-8 PowerPAD™ integrated circuit package.

Key Features

Excellent sound quality
Ultra low distortion: 0.000028%
Low noise: 1.25 nV/√Hz
High speed:
- Slew rate: 72 V/µs
- Gain bandwidth product: 180 MHz
Fully differential architecture:
- Balanced input and output converts single-ended input to balanced differential output
Wide supply range: ±2.5 V to ±15 V
Shutdown current: 0.85 mA (V S = ± 5 V)
Temperature range: –40°C to +85°C

Specifications

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)	30	GBW (typ) (MHz)	180
Slew rate (typ) (V/µs)	50	Rail-to-rail	No
Vos (offset voltage at 25°C) (max) (mV)	3	Iq per channel (typ) (mA)	14
Vn at 1 kHz (typ) (nV√Hz)	1.3	Features	Burr-Brown™ Audio, Shutdown
THD + N at 1 kHz (typ) (%)	0.000022	Rating	Catalog
Operating temperature range (°C)	-40 to 85	Iout (typ) (A)	0.085
Architecture	Voltage FB	CMRR (typ) (dB)	90
Input bias current (max) (pA)	200000	feature-function	Speaker
feature-amplifier-type	Class-AB	feature-rail-to-rail
feature-typical-gain-bandwidth-product-mhz	180	feature-typical-psrr-db	97.72
feature-total-harmonic-distortion-noise	0.000022%@2000Ohm	feature-input-signal-type	Differential
feature-output-signal-type	Differential	feature-output-type	4-Channel Stereo\|2-Channel Stereo\|1-Channel Mono
feature-maximum-output-current-ma	150	feature-maximum-input-offset-voltage-mv	3@±15V
feature-maximum-input-bias-current-ua	6@±15V	feature-maximum-power-dissipation-mw
feature-packaging	Tube	feature-rad-hard
feature-pin-count	8	feature-supplier-package	HVSSOP EP
feature-standard-package-name1	SOP	feature-cecc-qualified	No
feature-esd-protection	Yes	feature-military	No
feature-aec-qualified	No	feature-aec-qualified-number
feature-auto-motive	No	feature-p-pap	No
feature-eccn-code	EAR99	feature-svhc	Yes
feature-svhc-exceeds-threshold	No