LTC1278-5是12-Bit, 500ksps Sampling A/D Converter with Shutdown

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LTC1278-5 - LTC1278-5是12-Bit, 500ksps Sampling A/D Converter with Shutdown

LTC1278-5是Linear公司的一款通用型 SAR ADC产品，LTC1278-5是12-Bit, 500ksps Sampling A/D Converter with Shutdown，本站介绍了LTC1278-5的封装应用图解、特点和优点、功能等，并给出了与LTC1278-5相关的凌力尔特元器件型号供参考。

LTC1278-5 - 12-Bit, 500ksps Sampling A/D Converter with Shutdown

LTC1278-4 - 12-Bit, 500ksps Sampling A/D Converter with Shutdown - Linear Technology（凌力尔特）

功能描述

The LTC?1278 is a 1.6μs, 500ksps, sampling 12-bit A/D converter that draws only 75mW from a single 5V or ±5V supplies. This easy-to-use device comes complete with a 200ns sample-and-hold, a precision reference and an internally trimmed clock. Unipolar and bipolar conversion modes add to the flexibility of the ADC. The low power dissipation is made even more attractive by a 8.5mW power-down feature. Instant wake-up from shutdown allows the converter to be powered down even during brief inactive periods.The LTC1278 converts 0V to 5V unipolar inputs from a single 5V supply and ±2.5V bipolar inputs from ±5V supplies. Maximum DC specs include ±1LSB INL and ±1LSB DNL. Outstanding guaranteed AC performance includes 70dB S/(N + D) and 78dB THD at the input frequency of 100kHz over temperature.The internal clock is trimmed for 1.6μs conversion time. The clock automatically synchronizes to each sample command, eliminating problems with asynchronous clock noise found in competitive devices. A separate convert start input and a data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors.

特点

Single Supply 5V or ±5V Operation

Two Speed Grades,500ksps (LTC1278-5) 400ksps (LTC1278-4)

70dB S/(N + D) and 74dB THD at Nyquist

No Missing Codes Over Temperature

75mW (Typ) Power Dissipation

Power Shutdown with Instant Wake-Up

Internal Reference Can Be Overdriven Externally

Internal Synchronized Clock; No Clock Required

High Impedance Analog Input

0V to 5V or ±2.5V Input Range

New Flexible, Friendly Parallel Interface to DSPs and FIFOs

24-Pin SOL Packages

应用

High Speed Data Acquisition

Digital Signal Processing

Multiplexed Data Acquisition Systems

Audio and Telecom Processing

Spectrum Analysis

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1278-4CN	N-24	C	$16.00	$12.65
LTC1278-4CN#PBF	N-24	C	$16.00	$12.65
LTC1278-4CSW	SW-24	C	$16.00	$12.65
LTC1278-4CSW#PBF	SW-24	C	$16.00	$12.65
LTC1278-4CSW#TR	SW-24	C		$12.75
LTC1278-4CSW#TRPBF	SW-24	C		$12.75
LTC1278-4IN	N-24	I	$18.35	$14.45
LTC1278-4IN#PBF	N-24	I	$18.35	$14.45
LTC1278-4ISW	SW-24	I	$18.35	$14.45
LTC1278-4ISW#PBF	SW-24	I	$18.35	$14.45
LTC1278-4ISW#TR	SW-24	I		$14.55
LTC1278-4ISW#TRPBF	SW-24	I		$14.55
LTC1278-5CSW	SW-24	C	$17.10	$13.50
LTC1278-5CSW#PBF	SW-24	C	$17.10	$13.50
LTC1278-5CSW#TR	SW-24	C		$13.60
LTC1278-5CSW#TRPBF	SW-24	C		$13.60
LTC1278-5ISW	SW-24	I	$19.60	$15.45
LTC1278-5ISW#PBF	SW-24	I	$19.60	$15.45
LTC1278-5ISW#TR	SW-24	I		$15.55
LTC1278-5ISW#TRPBF	SW-24	I		$15.55