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| 型号： | MAX1185ECM+TD |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/21页 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT 20MSPS DL 48-TQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 位数： | 10 |
| 采样率（每秒）： | 20M |
| 转换器数目： | 2 |
| 功率耗散（最大）： | 2.43W |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-TQFP 裸露焊盘 |
| 供应商设备封装： | 48-TQFP 裸露焊盘（7x7） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 4 个单端，单极；4 个单端，双极；2 个差分，单极；2 个差分，双极 |
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
General Description
The MAX1185 is a 3V, dual 10-bit analog-to-digital con-
verter (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, instru-
mentation, and digital communication applications. This
ADC operates from a single 2.7V to 3.6V supply, con-
suming 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 alternating on the rising (CHA)
and falling (CHB) edge of the clock. The T/H driven
input stages incorporate 400MHz (-3dB) input ampli-
fiers. 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
1A 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) temperature
range.
Pin-compatible, nonmultiplexed. high-speed versions of
the MAX1185 are also available. 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 fIN = 7.5MHz
74dB SFDR at fIN = 7.5MHz
o Low Power:
35mA (Normal Operation)
2.8mA (Sleep Mode)
1A (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 Pad for
Improved Thermal Dissipation
MAX1185
Dual 10-Bit, 20Msps, 3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
________________________________________________________________
Maxim Integrated Products
1
D1A/B
D0A/B
OGND
OVDD
OGND
A/B
N.C.
COM
VDD
GND
INA+
INA-
VDD
GND
INB-
INB+
GND
VDD
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
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
REFN
REFP
REFIN
REFOUT
D9A/B
D8A/B
D7A/B
D6A/B
D5A/B
D4A/B
D3A/B
D2A/B
MAX1185
NOTE: THE PIN 1 INDICATOR FOR LEAD-FREE
PACKAGES IS REPLACED BY A "+" SIGN.
EP
GND
V
DD
V
DD
GND
T/B
SLEEP
PD
OE
N.C.
Pin Configuration
19-2175; Rev 3; 5/11
Ordering Information
PART
TEMP
RANGE
PIN-PACKAGE
MAX1185ECM
-40
°C to +85°C
48 TQFP-EP*
MAX1185ECM+
-40
°C to +85°C
48 TQFP-EP*
MAX1185ECM/V+
-40
°C to +85°C
48 TQFP-EP*
*
EP = Exposed pad.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
Pin-Compatible Versions table at end of data sheet.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1186ECM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX1186ECM+D | 功能描述:模数转换器 - ADC 10-Bit 2Ch 40Msps High Speed ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1186ECM+TD | 功能描述:模数转换器 - ADC 10-Bit 2Ch 40Msps High Speed ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1186ECM-D | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1186ECM-TD | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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