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參數資料
| 型號： | MAX1422CCM+TD |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT 20MSPS 48LQFP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,000 |
| 位數： | 12 |
| 采樣率（每秒）： | 20M |
| 數據接口： | 并聯 |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 152mW |
| 電壓電源： | 模擬和數字 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應商設備封裝： | 48-LQFP（7x7） |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 1 個差分，雙極 |
General Description
The MAX1422 3.3V, 12-bit analog-to-digital converter
(ADC) features a fully differential input, pipelined, 12-
stage ADC architecture with wideband track-and-hold
(T/H) and digital error correction incorporating a fully-dif-
ferential signal path. The MAX1422 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
137mW while delivering a 67dB (typ) signal-to-noise
ratio (SNR) at a 5MHz input frequency and a 20Msps
sampling frequency. The fully-differential input stage
has a small signal -3dB bandwidth of 400MHz and may
be operated with single-ended inputs.
An internal 2.048V precision bandgap reference sets
the ADCs full-scale range. A flexible reference structure
accommodates an internally or externally applied
buffered or unbuffered reference for applications
requiring increased accuracy or a different input volt-
age range.
In addition to low operating power, the MAX1422 features
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 2mA
(typ) supply current reduction. For idle periods, a full
shutdown mode is available to maximize power savings.
The MAX1422 provides parallel, offset binary, CMOS-
compatible three-state outputs.
The MAX1422 is available in a 7mm 7mm 1.4mm,
48-pin TQFP package and is specified over the com-
mercial (0°C to +70°C) and extended industrial (-40°C
to +85°C) temperature ranges.
Pin-compatible higher-speed versions of the MAX1422
are also available. Please refer to the MAX1421 data
sheet for 40Msps and the MAX1420 data sheet for
60Msps.
________________________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 fIN = 5MHz
o Internal 2.048V Precision Bandgap Reference
o Differential Wideband Input T/H Amplifier
o Power-Down Modes
130mW (Reference Shutdown Mode)
10W (Shutdown Mode)
o Space-Saving 48-Pin TQFP Package
MAX1422
12-Bit, 20Msps, 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
TQFP
MAX1422
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
19-1899; Rev 1; 5/04
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX1422CCM
0°C to +70°C
48 TQFP
MAX1422ECM
-40°C to +85°C
48 TQFP
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.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX1422ECM | 制造商:Maxim Integrated Products 功能描述:48 PINS TQFP PKG - Bulk |
| MAX1422ECM+D | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1422ECM+TD | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1422ECM-D | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1422ECM-TD | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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