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參數(shù)資料
| 型號： | MAX1185ECM |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | Dual 10-Bit, 20Msps, +3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs |
| 中文描述： | 2-CH 10-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP48 |
| 封裝： | 7 X 7 MM, TQFP-48 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 495K |
| 代理商： | MAX1185ECM |
General Description
The MAX1185 is a +3V, dual 10-bit analog-to-digital
converter (ADC) featuring fully-differential wideband
track-and-hold (T/H) inputs, driving two pipelined,
nine-stage ADCs. The MAX1185 is optimized for low-
power, high dynamic performance applications in
imaging, instrumentation, and digital communication
applications. This ADC operates from a single +2.7V to
+3.6V supply, consuming only 105mW while delivering
a typical signal-to-noise ratio (SNR) of 59.5dB at an
input frequency of 7.5MHz and a sampling rate of
20Msps. Digital outputs A and B are updated alternat-
ing on the rising (CHA) and falling (CHB) edge of the
clock. The T/H driven input stages incorporate 400MHz
(-3dB) input amplifiers. The converters may also be
operated with single-ended inputs. In addition to low
operating power, the MAX1185 features a 2.8mA sleep
mode as well as a 1μA power-down mode to conserve
power during idle periods.
An internal +2.048V precision bandgap reference sets
the full-scale range of the ADC. A flexible reference
structure allows the use of this internal or an externally
derived reference, if desired for applications requiring
increased accuracy or a different input voltage range.
The MAX1185 features parallel, multiplexed, CMOS-
compatible three-state outputs. The digital output for-
mat can be set to two’s complement or straight offset
binary through a single control pin. The device provides
for a separate output power supply of +1.7V to +3.6V
for flexible interfacing. The MAX1185 is available in a
7mm x 7mm, 48-pin TQFP package, and is specified
for the extended industrial (-40°C to +85°C) tempera-
ture range.
Pin-compatible, nonmultiplexed. high-speed versions of
the MAX1185 are also available. Please refer to the
MAX1180 data sheet for 105Msps, the MAX1181 data
sheet for 80Msps, the MAX1182 data sheet for 65Msps,
the MAX1183 data sheet for 40Msps, and the MAX1184
data sheet for 20Msps.
Applications
High Resolution Imaging
I/Q Channel Digitization
Multichannel IF Sampling
Instrumentation
Video Application
Ultrasound
Features
o
Single +3V Operation
o
Excellent Dynamic Performance:
59.5dB SNR at f
IN
= 7.5MHz
74dB SFDR at f
IN
= 7.5MHz
o
Low Power:
35mA (Normal Operation)
2.8mA (Sleep Mode)
1μA (Shutdown Mode)
o
0.02dB Gain and 0.25° Phase Matching
o
Wide ±1Vp-p Differential Analog Input Voltage
Range
o
400MHz, -3dB Input Bandwidth
o
On-Chip +2.048V Precision Bandgap Reference
o
Single 10-Bit Bus for Multiplexed, Digital Outputs
o
User-Selectable Output Format – Two’s
Complement or Offset Binary
o
48-Pin TQFP Package with Exposed Paddle For
Improved Thermal Dissipation
M
Dual 10-Bit, 20Msps, +3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
________________________________________________________________
Maxim Integrated Products
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.
1
D1A/B
D0A/B
OGND
OV
DD
OV
DD
OGND
A/B
N.C.
N.C.
N.C.
N.C.
N.C.
COM
V
DD
GND
INA+
INA-
V
DD
GND
INB-
INB+
GND
V
DD
CLK
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-EP
G
V
D
G
V
D
T
S
P
O
N
N
N
N
1
1
1
1
1
1
1
2
2
2
2
2
4
4
4
4
4
4
4
4
4
3
3
3
R
R
R
R
D
D
D
D
D
D
D
D
MAX1185
Pin Configuration
19-2175; Rev 0; 10/01
Ordering Information
PART
TEMP. RANGE
-40
°
C to +85
°
C
PIN-PACKAGE
48 TQFP-EP
MAX1185ECM
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1185ECM/V+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 2Ch 20Msps High Speed 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 |
| MAX1185ECM/V+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 2Ch 20Msps High Speed 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 |
| MAX1185ECM+D | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 2Ch 20Msps High Speed 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 |
| MAX1185ECM+TD | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 2Ch 20Msps High Speed 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 |
| MAX1185ECM-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 |
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