參數(shù)資料
型號: MAX19192ETI+T
廠商: Maxim Integrated Products
文件頁數(shù): 10/22頁
文件大小: 0K
描述: IC ADC 8BIT DUAL 10MSPS 28-TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
位數(shù): 8
采樣率(每秒): 10M
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 1.67W
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-WFQFN 裸露焊盤
供應商設備封裝: 28-TQFN-EP(5x5)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 4 個單端,單極;2 個差分,單極
MAX19192
Ultra-Low-Power, 10Msps, Dual 8-Bit ADC
18
______________________________________________________________________________________
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
MAX19192. 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 MAX19192 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.
MAX4250
3V
2
4
2
1.248V
3
5
10Hz
LOWPASS
FILTER
1
15
Ω
1
REFIN
VDD
MAX19192
N = 1
24
GND
1.023V
NOTE: ONE FRONT-END REFERENCE
CIRCUIT PROVIDES
±15mA OF OUTPUT
DRIVE AND SUPPORTS OVER 1000 MAX19192s.
3
0.1
μF
0.1
μF
3V
1
μF
1%
20k
Ω
1%
90.9k
Ω
0.1
μF
2.2
μF
0.1
μF
REFP
27
0.33
μF
REFN
26
0.33
μF
COM
25
0.33
μF
REFIN
VDD
MAX19192
N = 1000
24
GND
0.1
μF
REFP
27
0.33
μF
REFN
26
0.33
μF
COM
25
0.33
μF
MAX6061
Figure 10. External Buffered (MAX4250) Reference Drive Using a MAX6061 Bandgap Reference
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