參數(shù)資料
型號(hào)： MAX1421CCM
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： ADC
英文描述： 12-Bit, 40Msps, +3.3V, Low-Power ADC with Internal Reference
中文描述： 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48
封裝： 7 X 7 MM, 1.40 MM HEIGHT, MS-026BBC, TQFP-48
文件頁(yè)數(shù)： 1/17頁(yè)
文件大小： 310K
代理商： MAX1421CCM
General Description
The MAX1421 is a +3.3V, 12-bit analog-to-digital con-
verter (ADC), featuring a fully-differential input,
pipelined, 12-stage ADC architecture with wideband
track-and-hold (T/H) and digital error correction incor-
porating a fully-differential signal path. The MAX1421 is
optimized for low-power, high-dynamic performance
applications in imaging and digital communications.
The converter operates from a single +3.3V supply,
consuming only 188mW while delivering a typical sig-
nal-to-noise ratio (SNR) of 66dB at an input frequency
of 15MHz and a sampling frequency of 40Msps. The
fully-differential input stage has a small signal -3dB
bandwidth of 400MHz and may be operated with sin-
gle-ended inputs.
An internal +2.048V precision bandgap reference sets
the full-scale range of the ADC. A flexible reference
structure accommodates an internal or externally
applied buffered or unbuffered reference for applica-
tions requiring increased accuracy or a different input
voltage range.
In addition to low operating power, the MAX1421 fea-
tures two power-down modes, a reference power-down
and a shutdown mode. In reference power-down, the
internal bandgap reference is deactivated, resulting in
a typical 2mA supply current reduction. For idle peri-
ods, a full shutdown mode is available to maximize
power savings.
The MAX1421 provides parallel, offset binary, CMOS-
compatible three-state outputs.
The MAX1421 is available in a 7mm x 7mm, 48-pin
TQFP package, and is specified over the commercial
(0°C to +70°C) and the extended industrial (-40°C to
+85°C) temperature ranges.
Pin-compatible higher- and lower-speed versions of the
MAX1421 are also available. Please refer to the
MAX1420 data sheet for a frequency of 60Msps and
the MAX1422 data sheet for a frequency of 20Msps.
________________________Applications
Medical Ultrasound Imaging
CCD Pixel Processing
Data Acquisition
Radar
IF and Baseband Digitization
Features
o
Single +3.3V Power Supply
o
67dB SNR at f
IN
= 5MHz
o
66dB SNR at f
IN
= 15MHz
o
Internal, +2.048V Precision Bandgap Reference
o
Differential, Wideband Input T/H Amplifier
o
Power-Down Modes
180mW (Reference Shutdown Mode)
10μW (Shutdown Mode)
o
Space-Saving 48-Pin TQFP Package
M
12-Bit, 40Msps, +3.3V, Low-Power ADC
with Internal Reference
________________________________________________________________
Maxim Integrated Products
1
D9
D8
D7
D6
DV
DD
DV
DD
DGND
DGND
D5
D4
D3
D2
AGND
AV
DD
AV
DD
AGND
AGND
INP
INN
AGND
AGND
AV
DD
AV
DD
AGND
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
48-TQFP
MAX1421
A
A
D
A
D
A
C
C
A
A
D
D
D
D
D
D
1
1
1
1
1
1
1
2
2
2
2
2
4
4
4
4
4
4
4
4
4
3
3
3
A
A
D
C
R
R
R
A
D
A
P
O
D
D
Pin Configuration
19-1900; Rev 0; 5/01
Ordering Information
48 TQFP
48 TQFP
PIN-PACKAGE
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
MAX1421CCM
MAX1421ECM
PART
Functional Diagram appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
相關(guān)PDF資料
PDF描述
MAX1422 Digital Temperature Sensor with 2-Wire Interface 8-SOIC -40 to 125
MAX1422CCM 12-Bit, 20Msps, 3.3V, Low-Power ADC with Internal Reference
MAX1422ECM 12-Bit, 20Msps, 3.3V, Low-Power ADC with Internal Reference
MAX1425 10-Bit, 20Msps ADC
MAX1425EAI 0.5C Digital Out Temperature Sensor 8-MSOP -40 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1421CCM+D 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 40Msps 3.3V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1421CCM+TD 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 40Msps 3.3V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1421CCM-D 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1421CCM-TD 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1421ECM 制造商:Maxim Integrated Products 功能描述:48 PINS TQFP PKG - Bulk
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