OPA1632 Datasheet, PDF (1/12 Pages) Texas Instruments – High-Perfomance, Fully-Differential AUDIO OP AMP

OPA1632
SBOS286 − DECEMBER 2003
High-Perfomance, Fully-Differential
AUDIO OP AMP
FEATURES
D SUPERIOR SOUND QUALITY
D ULTRA LOW DISTORTION: 0.000022%
D LOW NOISE: 1.3nV/√Hz
D HIGH SPEED:
− Slew Rate: 50V/µs
− Gain Bandwidth: 180MHz
D FULLY DIFFERENTIAL ARCHITECTURE:
− Balanced Input and Output Converts
Single-Ended Input to Balanced
Differential Output
D WIDE SUPPLY RANGE: ±2.5V to ±16V
D SHUTDOWN TO CONSERVE POWER
APPLICATIONS
D AUDIO ADC DRIVER
D BALANCED LINE DRIVER
D BALANCED RECEIVER
D ACTIVE FILTER
D PREAMPLIFIER
DESCRIPTION
The OPA1632 is a fully-differential amplifier designed
for driving high-performance audio analog-to-digital
converters (ADCs). It provides the highest audio quality,
with very low noise and output drive characteristics
optimized for this application. The OPA1632’s excellent
gain bandwidth of 180MHz and very fast slew rate of
50V/µs produce exceptionally low distortion. Very low
input noise of 1.3nV/√Hz further ensures 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 also enhances the flexibility of this
amplifier.
The OPA1632 is available in an SO-8 package and a
thermally-enhanced MSOP-8 PowerPAD package.
RELATED DEVICES
OPAx134
OPA627/637
OPAx227/x228
High-Performance Audio Amplifiers
Precision High-Speed DiFET Amplifiers
Low-Noise Bipolar Amplifiers
V_IN+
V_IN−
+15V
V_OCM
−15V
V_IN−
Digital
Output
V_IN+ _VCOM
Typical ADC Circuit
0.001
THD + NOISE vs FREQUENCY
Gain = +1
R_F = 348Ω
V_O = 3Vrms
Differential I/O
0.0001
R_L = 600Ω
R_L = 2kΩ
0.00001
10
100
1000
10k
Frequency (Hz)
100k
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2003, Texas Instruments Incorporated
www.ti.com