参数资料
型号: AD9444BSVZ-80
厂商: Analog Devices Inc
文件页数: 1/40页
文件大小: 0K
描述: IC ADC 14BIT 80MSPS 100TQFP
标准包装: 1
位数: 14
采样率(每秒): 80M
数据接口: 并联
转换器数目: 1
功率耗散(最大): 1.4W
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 100-TQFP 裸露焊盘
供应商设备封装: 100-TQFP-EP(14x14)
包装: 托盘
输入数目和类型: 1 个差分,单极
14-Bit, 80 MSPS, A/D Converter
AD9444
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
2004 Analog Devices, Inc. All rights reserved.
FEATURES
80 MSPS guaranteed sampling rate
100 dB two-tone SFDR with 69.3 MHz and 70.3 MHz
73.1 dB SNR with 70 MHz input
97 dBc SFDR with 70 MHz input
Excellent linearity
DNL = ±0.4 LSB typical
INL = ±0.6 LSB typical
1.2 W power dissipation
3.3 V and 5 V supply operation
2.0 V p-p differential full-scale input
LVDS outputs (ANSI-644 compatible)
Data format select
Output clock available
APPLICATIONS
Multicarrier, multimode cellular receivers
Antenna array positioning
Power amplifier linearization
Broadband wireless
Radar, infared imaging
Communications instrumentation
GENERAL DESCRIPTION
The AD9444 is a 14-bit monolithic, sampling analog-to-digital
converter (ADC) with an on-chip, track-and-hold circuit and is
optimized for power, small size, and ease of use. The product
operates at up to an 80 MSPS conversion rate and is optimized
for multicarrier, multimode receivers, such as those found in
cellular infrastructure equipment.
The ADC requires 3.3 V and 5.0 V power supplies and a low
voltage differential input clock for full performance operation.
No external reference or driver components are required for
many applications. Data outputs are LVDS-compatible (ANSI-
644) or CMOS-compatible and include the means to reduce
the overall current needed for short trace distances.
FUNCTIONAL BLOCK DIAGRAM
CMOS
OR
LVDS
OUTPUT
STAGING
CLOCK
AND TIMING
MANAGEMENT
AGND
DRGND DRVDD
VREF
CLK+
VIN+
AD9444
VIN–
CLK–
DCO
05089-001
AVDD1 AVDD2
DCS MODE
DFS
OUTPUT MODE
T/H
BUFFER
14
PIPELINE
ADC
2
28
2
OR
D13–D0
REF
REFB
SENSE REFT
Figure 1.
Optional features allow users to implement various selectable
operating conditions, including data format select and output
data mode.
The AD9444 is available in a 100-lead surface-mount plastic
package (100-lead TQFP/EP) specified over the industrial
temperature range (40°C to +85°C).
PRODUCT HIGHLIGHTS
1. High performance: Outstanding SFDR performance for mul-
ticarrier, multimode 3G and 4G cellular base station
receivers.
2. Ease of use: On-chip reference and track-and-hold. An
output clock simplifies data capture.
3. Packaged in a Pb-free, 100-lead TQFP/EP.
4. Clock DCS maintains overall ADC performance over a wide
range of clock pulse widths.
5. OR (out-of-range) outputs indicate when the signal is beyond
the selected input range.
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