参数资料
型号: MAX1193ETI+T
厂商: Maxim Integrated Products
文件页数: 13/26页
文件大小: 0K
描述: IC ADC 8BIT 45MSPS DL 28-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
位数: 8
采样率(每秒): 45M
数据接口: 并联
转换器数目: 2
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: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
输入数目和类型: 4 个单端,双极;2 个差分,双极
MAX1193
Figure 10 shows the MAX6061 precision bandgap ref-
erence used as a common reference for multiple con-
verters. The 1.248V output of the MAX6061 is divided
down to 1.023V as it passes through a one-pole, 10Hz,
lowpass filter to the MAX4250. The MAX4250 buffers
the 1.023V reference before its output is applied to the
MAX1193. The MAX4250 provides a low offset voltage
(for high gain accuracy) and a low noise level.
Unbuffered External Reference Drives
Multiple ADCs
The unbuffered external reference mode allows for pre-
cise control over the MAX1193 reference and allows
multiple converters to use a common reference.
Connecting REFIN to GND disables the internal refer-
ence, allowing REFP, REFN, and COM to be driven
directly by a set of external reference sources.
Ultra-Low-Power, 45Msps, Dual 8-Bit ADC
20
______________________________________________________________________________________
MAX4250
3V
2
4
2
1.248V
3
5
10Hz
LOWPASS
FILTER
1
15
1
REFIN
VDD
MAX1193
N = 1
24
GND
1.023V
NOTE: ONE FRONT-END REFERENCE
CIRCUIT PROVIDES
±15mA OF OUTPUT
DRIVE AND SUPPORTS OVER 1000
MAX1193s.
3
0.1
F
0.1
F
3V
1
F
1%
20k
1%
90.9k
0.1
F
2.2
F
0.1
F
REFP
27
0.33
F
REFN
26
0.33
F
COM
25
0.33
F
REFIN
VDD
MAX1193
N = 1000
24
GND
0.1
F
REFP
27
0.33
F
REFN
26
0.33
F
COM
25
0.33
F
MAX6061
Figure 10. External Buffered (MAX4250) Reference Drive Using a MAX6062 Bandgap Reference
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