VCA822

활성

광대역, 40dB 이상의 게인 조정 범위, V/V 선형, 가변 게인 증폭기

지금 주문하기

데이터 시트

document-pdfAcrobat VCA822 Wideband, > 40-dB Gain Adjust Range, Linear in V/V Variable Gain Amplifier datasheet (Rev. D) (영어) PDF | HTML

VCA822

활성

데이터 시트

지금 주문하기

제품 상세 정보

PGA/VGA

VGA

Number of channels

1

Vs (min) (V)

7

Vs (max) (V)

12

Input type

Differential

Output type

Single-ended

Interface type

Resistance

BW at Acl (MHz)

150

Acl, min spec gain (V/V)

2

Voltage gain (min) (V/V)

100

Voltage gain (max) (V/V)

2

Gain (max) (dB)

40

Architecture

Bipolar

Features

Analog Gain Set, Differential to Single-ended conversion

Vos (offset voltage at 25°C) (typ) (mV)

4

Input voltage noise (typ) (µV√Hz)

0.0082

Slew rate (typ) (V/µs)

1700

Iq per channel (typ) (mA)

36.5

Rating

Catalog

Operating temperature range (°C)

-40 to 85

PGA/VGA

VGA

Number of channels

1

Vs (min) (V)

7

Vs (max) (V)

12

Input type

Differential

Output type

Single-ended

Interface type

Resistance

BW at Acl (MHz)

150

Acl, min spec gain (V/V)

2

Voltage gain (min) (V/V)

100

Voltage gain (max) (V/V)

2

Gain (max) (dB)

40

Architecture

Bipolar

Features

Analog Gain Set, Differential to Single-ended conversion

Vos (offset voltage at 25°C) (typ) (mV)

4

Input voltage noise (typ) (µV√Hz)

0.0082

Slew rate (typ) (V/µs)

1700

Iq per channel (typ) (mA)

36.5

Rating

Catalog

Operating temperature range (°C)

-40 to 85

SOIC (D)

14

51.9 mm² (8.65 mm × 6 mm)

VSSOP (DGS)

10

14.7 mm² (3 mm × 4.9 mm)

150-MHz Small-Signal Bandwidth
(G = +10 V/V)
137 MHz, 5 V_PP Bandwidth (G = +10 V/V)
0.1-dB Gain Flatness to 28 MHz
1700 V/μs Slew Rate
> 40-dB Gain Adjust Range
High Gain Accuracy: 20 dB ±0.3 dB
High Output Current: ±160 mA

150-MHz Small-Signal Bandwidth
(G = +10 V/V)
137 MHz, 5 V_PP Bandwidth (G = +10 V/V)
0.1-dB Gain Flatness to 28 MHz
1700 V/μs Slew Rate
> 40-dB Gain Adjust Range
High Gain Accuracy: 20 dB ±0.3 dB
High Output Current: ±160 mA

The VCA822 device is a DC-coupled, wideband, linear in V/V, continuously variable, voltage-controlled gain amplifier. It provides a differential input to single-ended conversion with a high-impedance gain control input used to vary the gain down 40dB from the nominal maximum gain set by the gain resistor (R_G) and feedback resistor (R_F).

The internal architecture of the VCA822 device consists of two input buffers and an output current feedback amplifier stage integrated with a multiplier core to provide a complete variable gain amplifier (VGA) system that does not require external buffering. The maximum gain is set externally with two resistors, providing flexibility in designs. The maximum gain is intended to be set between +2 V/V and +100 V/V. Operating from ±5-V supplies, the gain control voltage for the VCA822 device adjusts the gain linearly in V/V as the control voltage varies from +1 V to 1 V. For example, set for a maximum gain of +10 V/V, the VCA822 device provides 10 V/V, at
1-V input, to 0.1 V/V at –1 V input of gain control range. The VCA822 device offers excellent gain linearity. For a 20-dB maximum gain and a gain-control input voltage varying between 0 V and 1 V, the gain does not deviate by more than ±0.3 dB (maximum at +25°C).

The VCA822 device is a DC-coupled, wideband, linear in V/V, continuously variable, voltage-controlled gain amplifier. It provides a differential input to single-ended conversion with a high-impedance gain control input used to vary the gain down 40dB from the nominal maximum gain set by the gain resistor (R_G) and feedback resistor (R_F).

The internal architecture of the VCA822 device consists of two input buffers and an output current feedback amplifier stage integrated with a multiplier core to provide a complete variable gain amplifier (VGA) system that does not require external buffering. The maximum gain is set externally with two resistors, providing flexibility in designs. The maximum gain is intended to be set between +2 V/V and +100 V/V. Operating from ±5-V supplies, the gain control voltage for the VCA822 device adjusts the gain linearly in V/V as the control voltage varies from +1 V to 1 V. For example, set for a maximum gain of +10 V/V, the VCA822 device provides 10 V/V, at
1-V input, to 0.1 V/V at –1 V input of gain control range. The VCA822 device offers excellent gain linearity. For a 20-dB maximum gain and a gain-control input voltage varying between 0 V and 1 V, the gain does not deviate by more than ±0.3 dB (maximum at +25°C).

filter

기타 프로그래밍 가능한 가변적 게인 증폭기(PGA 및 VGA) 찾기

다운로드 스크립트와 함께 비디오 보기 비디오

관심 가지실만한 유사 제품

open-in-new

대안 비교

다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.

LMH6505

활성

광대역, 저전력, 선형(dB), 가변 게인 증폭기 Faster slew rate (1700 V/us) in SOIC 8 and VSSOP 8 pin package

기술 자료

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4개 모두 보기

상위 문서	유형	직함	형식 옵션	날짜
*	데이터 시트	VCA822 Wideband, > 40-dB Gain Adjust Range, Linear in V/V Variable Gain Amplifier datasheet (Rev. D)	PDF \| HTML	2015. 10. 29
	e북	The Signal e-book: A compendium of blog posts on op amp design topics	PDF \| HTML	2017. 3. 28
	애플리케이션 노트	Implementating a Variable-Length Cat5e Cable Equalizer		2010. 4. 25
	애플리케이션 노트	Wireline Data Transmission and Reception		2010. 1. 27