OPA615

更新时间： 2024-11-23 10:22:11

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
26页	628K
描述
Wide-Bandwidth, DC Restoration Circuit

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OPA615 数据手册

OPA615

SBOS299B–FEBRUARY 2004–REVISED JULY 2005

Wide-Bandwidth, DC Restoration Circuit

FEATURES

DESCRIPTION

•

PROPAGATION DELAY: 1.9ns

The OPA615 is a complete subsystem for very fast

and precise DC restoration, offset clamping, and

low-frequency hum suppression of wideband ampli-

fiers or buffers. Although it is designed to stabilize the

performance of video signals, the circuit can also be

used as a sample-and-hold amplifier, high-speed

integrator, or peak detector for nanosecond pulses.

•

BANDWIDTH:

OTA: 710MHz

Comparator: 730MHz

•

LOW INPUT BIAS CURRENT: ±1µA

SAMPLE-AND-HOLD SWITCHING

TRANSIENTS: ±5mV

The device features

Transconductance Amplifier

wideband Operational

(OTA) with

•

SAMPLE-AND-HOLD FEEDTHROUGH

REJECTION: 100dB

high-impedance cascode current source output and

fast and precise sampling comparator that together

set a new standard for high-speed applications. Both

the OTA and the sampling comparator can be used

as stand-alone circuits or combined to form a more

complex signal processing stage. The self-biased,

bipolar OTA can be viewed as an ideal volt-

age-controlled current source and is optimized for low

input bias current. The sampling comparator has two

identical high-impedance inputs and a current source

output optimized for low output bias current and offset

voltage; it can be controlled by a TTL-compatible

switching stage within a few nanoseconds. The

transconductance of the OTA and sampling

comparator can be adjusted by an external resistor,

allowing bandwidth, quiescent current, and gain

trade-offs to be optimized.

•

CHARGE INJECTION: 40fC

HOLD COMMAND DELAY TIME: 2.5ns

TTL/CMOS HOLD CONTROL

APPLICATIONS

•

BROADCAST/HDTV EQUIPMENT

TELECOMMUNICATIONS EQUIPMENT

HIGH-SPEED DATA ACQUISITION

CAD MONITORS/CCD IMAGE PROCESSING

NANOSECOND PULSE INTEGRATOR/PEAK

DETECTOR

PULSE CODE MODULATOR/DEMODULATOR

COMPLETE VIDEO DC LEVEL RESTORATION

SAMPLE-AND-HOLD AMPLIFIER

SHC615 UPGRADE

•

The OPA615 is available in both an SO-14 sur-

face-mount and an MSOP-10 package.

Ground

C_HOLD

Base

Emitter

Hold

Control

Switching

Stage

OTA

Sampling

Comparator (SC)

Collector

(I_OUT

)

S/H

In+

Biasing

∞

SOTA

I_QAdjust

S/H

−

OPA615

+V_CC

−

V_CC

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...26

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与OPA615相关器件

型号	品牌	获取价格	描述	数据表
OPA615ID	TI	获取价格	Wide-Bandwidth, DC Restoration Circuit
OPA615IDG4	TI	获取价格	Wide-Bandwidth, DC Restoration Circuit
OPA615IDGSR	TI	获取价格	Wide-Bandwidth, DC Restoration Circuit
OPA615IDGST	TI	获取价格	Wide-Bandwidth, DC Restoration Circuit
OPA615IDR	TI	获取价格	Wide-Bandwidth, DC Restoration Circuit
OPA615IDRG4	TI	获取价格	Wide-Bandwidth, DC Restoration Circuit
OPA620	BB	获取价格	Wideband Precision OPERATIONAL AMPLIFIER
OPA620	TI	获取价格	OPERATIONAL AMPLIFIER
OPA620AD	BB	获取价格	Operational Amplifier, 1 Func, BIPolar,
OPA620KG	BB	获取价格	Operational Amplifier, 1 Func, 1000uV Offset-Max, BIPolar, CDIP8,

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