Datasheet > NAD1250-18T

NAD1250-18T

更新时间： 2024-11-02 23:53:19

品牌	Logo	应用领域
其他 - ETC		转换器
页数	文件大小	规格书
11页	84K
描述
12-Bit 50MSPS Sampling Analog-to-Digital Converter IP in 0.18um CMOS

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NAD1250-18T 数据手册

OBJECTIVE PRODUCT SPECIFICATION

12-Bit 40MSPS Sampling

Analog-to-Digital Converter

nAD1240-18T

FEATURES

APPLICATIONS

•

3.3V power supply

SINAD min 63.2dB for f_in=

50MHz

Low power (197mW @ 3.3V and

40MSPS)

Frequency dependent biasing

Internal, wideband Track/Hold

Differential input

•

Imaging

Test equipment

Computer scanners

Wireless communication

Powerline communication

Set top boxes

•

Video products

Low input capacitance

Power Down and Sleep Mode

GENERAL DESCRIPTION

The nAD1240-18T is a compact, high-speed, low power 12-bit monolithic analog-to-

digital converter, implemented in a 0.18µm single poly CMOS process with MiM

capacitors and thick oxide transistor option. It has 12-bit resolution with 11 effective

bits at low input frequencies, and close to 12 bit dynamic range for video frequency

signals. The converter includes a high bandwidth track and hold. Using internal

references, the full scale range is ±1V. The full scale range can be set between

±0.75V and ±1.0V using external references. It operates from a single 3.3V supply,

while I/O is biased with 1.8V. Its low distortion and high dynamic range offers the

performance needed for demanding imaging, multimedia, telecommunications and

instrumentation applications. The bias current level for the ADC is automatically

adjusted based on the clock input frequency. Hence, the power dissipation of the

device is continuously minimised for the current operation frequency.

QUICK REFERENCE DATA

Symbol

V_DD

Parameter

Conditions

Min. Typ. Max. Unit

Supply voltage

2.97

3.3

3.63

I_DD

P_D

Supply current (40 MSPS)

Power dissipation (15

MSPS)

Except digital output

drivers

P_D

Power dissipation (40

MSPS)

Except digital output

drivers

197

DNL

INL

f_S

Differential nonlinearity

Integral nonlinearity

Conversion rate

f_IN=0.9991MHz

±0.5

±1.0

LSB

MHz

bit

Resolution

Table 1. Quick reference data

Main office: Nordic VLSI ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone +4772898900

Revision: 1.3 Page 1 of 11

Fax +4772898989

September 11^th, 2001

12 3 4 5 6 7...11

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