參數(shù)資料
型號(hào)： MAX1421CCM+D
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/17頁(yè)
文件大?。?/td> 0K
描述： IC ADC 12BIT 40MSPS 48LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 250
位數(shù)： 12
采樣率（每秒）： 40M
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 214mW
電壓電源： 模擬和數(shù)字
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 托盤
輸入數(shù)目和類型： 1 個(gè)差分，雙極
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, con-
suming only 188mW while delivering a typical signal-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 band-
width of 400MHz and may be operated with
single-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
Single 3.3V Power Supply
67dB SNR at fIN = 5MHz
66dB SNR at fIN = 15MHz
Internal, 2.048V Precision Bandgap Reference
Differential, Wideband Input T/H Amplifier
Power-Down Modes
180mW (Reference Shutdown Mode)
10W (Shutdown Mode)
Space-Saving 48-Pin TQFP Package
MAX1421
12-Bit, 40Msps, 3.3V, Low-Power ADC
with Internal Reference
________________________________________________________________ Maxim Integrated Products
1
D9
D8
D7
D6
DVDD
DGND
D5
D4
D3
D2
AGND
AVDD
AGND
INP
INN
AGND
AVDD
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
AGND
AV
DD
AV
DD
AGND
CLK
AGND
AV
DD
DV
DD
DGND
D0
D1
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
AGND
AV
DD
CML
REFN
REFP
REFIN
AV
DD
AGND
PD
OE
D11
D10
Pin Configuration
19-1900; Rev 1; 5/06
Ordering Information
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.
+Denotes lead-free package.
PART*
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX1421CCM
0
°C to +70°C
48 TQFP
C48-2
MAX1421ECM
-40
°C to +85°C
48 TQFP
C48-2
MAX1421ECM+
-40
°C to +85°C
48 TQFP
C48-2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
MAX1421ECM+ 制造商:Maxim Integrated Products 功能描述:IC ADC LOW POWER 12BIT 3.3V SMD
MAX1421ECM+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
MAX1421ECM+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
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