OPA1632 Datasheet, PDF (1/30 Pages) Texas Instruments – High-Perfomance, Fully-Differential AUDIO OP AMP

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OPA1632
SBOS286C – DECEMBER 2003 – REVISED OCTOBER 2015
OPA1632 High-Performance, Fully-Differential Audio Operational Amplifier
1 Features
•1 Superior Sound Quality
• Ultra Low Distortion: 0.000022%
• Low Noise: 1.3 nV/√Hz
• High Speed:
– Slew Rate: 50 V/μs
– Gain Bandwidth: 180 MHz
• Fully Differential Architecture:
– Balanced Input and Output Converts Single-
Ended Input to Balanced Differential Output
• Wide Supply Range: ±2.5 V to ±16 V
• Shutdown to Conserve Power
2 Applications
• Audio ADC Driver
• Balanced Line Driver
• Balanced Receiver
• Active Filter
• Preamplifier
3 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 180 MHz and
very fast slew rate of 50 V/μs produce exceptionally
low distortion. Very low input noise of 1.3 nV/√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.
PART NUMBER
OPA1632
Device Information⁽¹⁾
PACKAGE
BODY SIZE (NOM)
SOIC (8)
6.00 mm × 4.90 mm
MSOP-PowerPAD (8) 5.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Application Diagram
V_IN+
V_IN-
+15V
V_OCM
Digital
V_IN-
Output
V_{IN+ VCOM}
0.001
THD + Noise vs Frequency
Gain = +1
R_F = 348W
V_O = 3V_RMS
Differential I/O
0.0001
-15V
R_L = 600W
Typical ADC Circuit
R_L = 2kW
0.00001
10
100
1000
10k
Frequency (Hz)
100k
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.