Sonic Imagery Labs 252AP Discrete OpAmp Vintage gear upgrade replacement

DESCRIPTION:
Model 252AP Discrete Operational Amplifier
No other Discrete Op-Amp on the market comes even close to our fully tested specifications.
This auction is for Qty(1) Brand New! Fully tested and assembled discrete opamp, ready to drop in and go!
This
unit is available with 2 pin lengths, Standard 0.30″ long or
Retro/Vintage 0.50″ long, Let us know at time of purchase which pin
length you want. See Application Note AN-18 for more details.
Model 252AP Datasheet and Specifications PDF
Model 252AP 990Enh-Ticha and 995FET-Ticha Mechanical Options Application Note AN-18
Height, Pin Length OPTION’s and socketing dimensions for both standard product and retro-clone or vintage upgrades.
General Description:
Model 252AP Discrete Operational Amplifier
The
Sonic Imagery Labs Model 252AP is a high performance discrete
operational amplifier designed for professional audio applications and
areas where ultralow noise and low distortion is required. The 252AP is
best suited for use in circuits with medium to high source impedances
and with microphone input transformers with high turns ratios (>
1:4).
The
Model 252AP is a modern re-engineering and redesign of the classic 2520
discrete op-amp. It was designed as an enhanced higher performance
upgrade replacement with a focus on superior AC and DC performance. The
pinouts conform to the 2520/990 package, allowing direct replacement.
The all-discrete SMT design is similar to the API2520 basic
topology but has been redesigned to use an ultra-precision differential
super-matched input transistor pair specifically designed to meet the
requirements of ultra-low noise and ultra-low THD audio systems. A
variant (252AP-ULN) is also available for ultra damn low noise
applications. (0.560nV/rtHz at 1kHz) Unlike the original API2520 design,
the 252AP can incorporate two precision matched pair transistors as the
differential input stage. A total of 4 matched devices, for ultra-ultra
low noise applications. These devices are selected by the manufacturer
at final test to Sonic Imagery Labs noise, Vos, Ic and Vbe matching
specifications.
DC
perfomance is easily a magnitude better than previous counterparts.
With an offset voltage of better than ±35uV (at Av1) and input leakage
better than <30nA, the Sonic Imagery Labs Model 252AP is well suited for DC coupled audio applications in which output offset errors cannot be tolerated.
In
addition to the enhanced input stage, and unlike the original API2520
devices, the Sonic Imagery Labs 252AP uses precision temperature stable
power supply independent current sources. Supply independent current
sources allow the bias of the input and matched pair differential VAS
stage to remain locked at the optimum operating point regardless of
power supply voltage.
Another
feature not found in the original API2520 design is the addition of
matched pair active current loads which gives the Model 252AP
differential input and VAS stage it’s outstanding (PSRR) power supply
noise rejection ratio performance.
The
Sonic Imagery Labs 252AP can be operated from ±10V to ±25V power
supplies. The redesigned input stage circuitry provides outstanding
common-mode rejection and maintains low input bias current over its wide
input voltage range, minimizing distortion. The 252AP is unity-gain
stable and provides outstanding dynamic behavior over a wide range of
load conditions.
Integrated
power transistor heatsinks coupled to a anodized aluminum enclosure
keeps the Sonic Imagery Labs 252AP operating within a wide safe
operating area (SOA) and does not suffer from Beta droop when driving
heavy loads. Each amplifier is individually fully tested and meets or
exceeds published specifications.
Features:
• Ultra Low Total Harmonic Distortion, 0.0003 THD+N @ 1kHz
• Ultra Low Noise 0.92nV/rtHz typical@1Khz Rs=150 ohm
• High Current Output Drive (250mA peak)
• +28dBu Output Levels (into 600 ohms)
• Standard Gain Block Footprint
• Operates over ±10V to ±28V supply rails
• Much lower output offset voltage than existing counterparts
• Lower input leakage current than existing counterparts
• Particular emphasis on audio performance
• Designed, assembled and produced in the USA
• 3 Year Warranty
Applications:
• Low Impedance Line Amplifiers and Drivers
• Active Filters and Equalizers
• Summing/Mixer Amplifiers
• High Performance Microphone Preamplifiers
• High Performance A/D and D/A front end Preamplifier
• High Performance D/A I-V convertors
• High Current Buffer Amplifier
Specifications:
Model 252AP Datasheet and Specifications PDF
Model 252AP 990Enh-Ticha and 995FET-Ticha Mechanical Options Application Note AN-18
Height, Pin Length OPTION’s and socketing dimensions for both standard product and retro-clone or vintage upgrades.
DOMESTIC SHIPPING AND
HANDLING:
Shipping and handling charges: Items can be shipped
First Class Parcel for $4.25
tracking or
USPS Flat Rate Priority Mail for $7.75
with tracking
.
INTERNATIONAL SHIPPING AND
HANDLING:
USPS First Class International Parcel —> for $14.25
USPS International Flat Rate Priority Mail —> for $37.45
CANADA and MEXICO ships
USPS International Flat Rate Priority Mail $25.95
,
customs tracking to the border. All other countries- Contact us
directly if you would rather use your own FEDEX, DHL or UPS carrier
account.
CONDITIONS OF SALE:
Please read
our terms carefully. Failure to understand our terms and conditions will delay your shipment of your items. If you
live in California, you must pay sales tax. All items are sold with a 14 day satisfaction, money back, guarantee.
Payment is due within 10 business days of auction’s end. California residents must add 8.75% sales tax.
PAYMENT
INFO:
We accept
Visa, Mastercard, American Express and Discover thru our PAYPAL account.  Payments from outside the US should be
payable in US Dollars.
See Also
Sonic Imagery Labs Model
992Enh-Ticha- Discrete Op Amp
DIP8
Sonic Imagery Labs Model
994Enh-Ticha- Dual Discrete Op Amp
DIP8
Sonic Imagery Labs Model
995FET-Ticha- FET Discrete Op Amp
990/2520
Sonic Imagery Labs Model
990Enh-Ticha- Discrete Op Amp
990/2520
Sonic Imagery Labs Model
312A VCA Module -Voltage Controlled Amplifier
Sonic Imagery Labs Model
898B 16 Channel Level Translator -Balanced – Unbalanced Cable Driver
Contact us directly for OEM and quantity pricing.