VCA2617 Texas instruments

VCA2617

Уточнить цену

VCA2617

Уточнить цену

СРАВНИТЬ

В СРАВНЕНИИ

Уточнить цену

Описание

The VCA2617 is a dual-channel, continuously variable, voltage-controlled gain amplifier well-suited for a variety of ultrasound systems as well as applications in proximity detectors and test equipment. The VCA2617 uses a true variable-gain amplifier architecture, achieving very good noise performance at low gains, while not sacrificing high gain distortion performance. Following a linear-in-dB response, the VCA2617 gain can be varied over a 48dB range with a 0.2V to 2.3V control voltage. Two separate high-impedance control inputs allow for a channel independent variation of the gains. Each channel of the VCA2617 can be configured to provide a gain range of -10dB to 38dB, or -16dB to 32dB, depending on the gain select pin (HG)\. This post-gain feature allows the user to optimize the output swing of VCA2617 for a variety of high-speed analog-to-digital converters (ADC). As a means to improve system overload recovery time, the VCA2617 also provides an internal clamping circuitry where an externally applied voltage sets the desired output clamping level. The VCA2617 operates on a single +5V supply while consuming only 52mW per channel. It is available in a small QFN-32 package (5x5mm).

INDEPENDENT CHANNEL CONTROLS:
- Gain Range: 48dB
- Clamping Levels
- Post-Gain: 0, +6dB
LOW NOISE: 4.1nV/Hz
LOW POWER: 52mW/Channel
BANDWIDTH: 50MHz
HARMONIC DISTORTION: -53dBc at 5MHz
CROSSTALK: -61dB at 5MHz
5V SINGLE SUPPLY
POWER-DOWN MODE
SMALL QFN-32 PACKAGE (5x5mm)
APPLICATIONS
- MEDICAL AND INDUSTRIAL ULTRASOUND SYSTEMS
  - Suitable for 10-Bit and 12-Bit Systems
- TEST EQUIPMENT
- SONAR

All trademarks are the property of their respective owners.

Number of channels	2
BW at Acl (MHz)	50
Vs (max) (V)	5.25
Vs (min) (V)	4.75
Acl, min spec gain (V/V)	0.32
Gain (max) (dB)	48
Slew rate (typ) (V/µs)	100
Operating temperature range (°C)	-40 to 85
Features	Analog Gain Set, Digital Gain Set, Integrated Clamps, Shutdown
Rating	Catalog