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VCA2613Y/250, VCA2614Y, VCA2615

Table of contents:
Info of VCA2613Y/250
Info of VCA2614Y
Info of VCA2615

VCA2613Y/250, VCA2614Y, VCA2615 Selling Leads, Datasheet

MFG:Texas Instruments (VA) Category:Integrated Circuits (ICs) Package Cooled:48-TQFP D/C:07+

VCA2613Y/250, VCA2614Y, VCA2615 Datasheet download

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Part Number: VCA2613Y/250

Category: Integrated Circuits (ICs)

MFG: Texas Instruments (VA)

Package Cooled: 48-TQFP

D/C: 07+

Description: IC OPAMP VGA DIFF 80MHZ 48TQFP

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VCA2613Y/250 Parameters

Technical/Catalog Information	VCA2613Y/250
Vendor	Texas Instruments (VA)
Category	Integrated Circuits (ICs)
Packaging	Digi-Reel?
Amplifier Type	Variable Gain
Number of Circuits	2 - Dual
Package / Case	48-TQFP
Slew Rate	300 V/s
Gain Bandwidth Product	80MHz
Current - Supply	-
Current - Output / Channel	40mA
Voltage - Supply, Single/Dual (±)	4.75 V ~ 5.25 V
Output Type	Differential
-3db Bandwidth	40MHz
Current - Input Bias	1nA
Operating Temperature	-40°C ~ 85°C
Voltage - Input Offset	-
Drawing Number	296; 4073176; PFB; 48
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	VCA2613Y 250 VCA2613Y250 VCA2613YDKR ND VCA2613YDKRND VCA2613YDKR

VCA2615 General Description

The VCA2615 is a dual-channel, variable gain amplifier consisting of a Low-Noise Preamplifier (LNP) and a Variable- Gain Amplifier (VGA). This combination along with the device features makes it well-suited for a variety of ultrasound systems.

The LNP offers a high level of flexibility to adapt to a wide range of systems and probes. The LNP gain can be programmed to one of four settings (3, 12, 18, 22dB), while maintaining excellent noise and signal handling characteristics. The input impedance of the LNP can be controlled by selecting one of the built-in feedback resistors.This active termination allows the user to closely match the LNP to a given source impedance, resulting in optimized overall system noise performance. The differential LNP outputs are provided either as buffered outputs for further CW processing, or fed directly into the variable-gain amplifier (VGA). Alternatively, an external signal can be applied to the differential VGA inputs through a programmable switch.

Following a linear-in-dB response, the gain of the VGA can be varied over a 52dB range with a 0.2V to 2.5V control voltage common to both channels of the VCA2615. In addition, the overall gain can be switched between a 0dB and +6dB postgain, allowing the user to optimize the output swing of VCA2615 for a variety of high-speed Analog-to-Digital Converters (ADCs). As a means to improve system overload recovery time, the VCA2615 provides an internal clipping function where an externally applied voltage sets the desired clipping level.

The VCA2615 operates on a single +5V supply and is available in a small QFN-48 package (7x7mm).

VCA2615 Maximum Ratings

Power Supply (V_DD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+6V
Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . .−0.3V to (+VS + 0.3V)
Logic Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3V to (+VS + 0.3V)
Case Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+100°C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . .−40°C to +150°C

VCA2615 Features

` VERY LOW NOISE: 0.7nV/Hz
` LOW-NOISE PREAMP (LNP)
− Active Termination
− Programmable Gains: 3, 12, 18, 22dB
− Programmable Input Impedance (RF)
− Buffered, Differential Outputs for CW Processing
− Excellent Input Signal Handling Capabilities
` LOW-NOISE VARIABLE-GAIN AMPLIFIER
− High/Low-Mode (0/+6dB)
− 52dB Gain Control Range
− Linear Control Response: 22dB/V
− Switchable Differential Inputs
− Adjustable Output Clipping-Level
` BANDWIDTH: 42MHz
` HARMONIC DISTORTION: −55dB
` 5V SINGLE SUPPLY
` LOW-POWER: 154mW/Channel
` POWER-DOWN MODES
` SMALL QFN-48 PACKAGE (7x7mm)

VCA2615 Typical Application

·MEDICAL AND INDUSTRIAL ULTRASOUND SYSTEMS
− Suitable for 10-Bit and 12-Bit Systems
·TEST EQUIPMENT

VCA2615 Connection Diagram

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