參數(shù)資料
型號(hào)： MAX1192ETI+T
廠(chǎng)商： Maxim Integrated Products
文件頁(yè)數(shù)： 14/27頁(yè)
文件大?。?/td> 0K
描述： IC ADC 8BIT 22MSPS DL 28-TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
位數(shù)： 8
采樣率（每秒）： 22M
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 2
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 28-WFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 28-TQFN-EP（5x5）
包裝： 帶卷 (TR)
輸入數(shù)目和類(lèi)型： 4 個(gè)單端，雙極；2 個(gè)差分，雙極
MAX1192
Ultra-Low-Power, 22Msps, Dual 8-Bit ADC
______________________________________________________________________________________
21
Using Transformer Coupling
An RF transformer (Figure 8) provides an excellent
solution to convert a single-ended source signal to a
fully differential signal, required by the MAX1192 for
optimum performance. Connecting the center tap of the
transformer to COM provides a VDD/2 DC level shift to
the input. Although a 1:1 transformer is shown, a step-
up transformer can be selected to reduce the drive
requirements. A reduced signal swing from the input
driver, such as an op amp, can also improve the overall
distortion.
In general, the MAX1192 provides better SFDR and
THD with fully differential input signals than single-
ended drive, especially for high input frequencies. In
differential input mode, even-order harmonics are lower
as both inputs (INA+, INA- and/or INB+, INB-) are bal-
anced, and each of the ADC inputs only requires half
the signal swing compared to single-ended mode.
Single-Ended AC-Coupled Input Signal
Figure 9 shows an AC-coupled, single-ended applica-
tion. Amplifiers such as the MAX4108 provide high
speed, high bandwidth, low noise, and low distortion to
maintain the input signal integrity.
Buffered External Reference Drives
Multiple ADCs
The buffered external reference mode allows for more
control over the MAX1192 reference voltage and allows
multiple converters to use a common reference. To
drive one MAX1192 in buffered external reference
mode, the external circuit must sink 0.7A, allowing one
reference circuit to easily drive the REFIN of multiple
converters to 1.024V ±10%.
MAX1192
T1
N.C.
VIN
6
1
5
2
4
3
22pF
0.1
μF
0.1
μF
2.2
μF
25
Ω
25
Ω
MINICIRCUITS
TT1-6-KK81
T1
N.C.
VIN
6
1
5
2
4
3
22pF
0.1
μF
0.1
μF
2.2
μF
25
Ω
25
Ω
MINICIRCUITS
TT1-6-KK81
INA-
INA+
INB-
INB+
COM
Figure 8. Transformer-Coupled Input Drive
MAX1192
0.1
μF
1k
Ω
1k
Ω
100
Ω
100
Ω
CIN
22pF
CIN
22pF
INB+
INB-
COM
INA+
INA-
0.1
μF
RISO
50
Ω
RISO
50
Ω
REFP
REFN
VIN
MAX4108
0.1
μF
1k
Ω
1k
Ω
100
Ω
100
Ω
CIN
22pF
CIN
22pF
0.1
μF
RISO
50
Ω
RISO
50
Ω
REFP
REFN
VIN
MAX4108
Figure 9. Using an Op Amp for Single-Ended, AC-Coupled
Input Drive
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參數(shù)描述
MAX1193ETI 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1193ETI+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 2Ch 45Msps 3.6V Precision 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1193ETI+D 制造商:Maxim Integrated Products 功能描述:ADC DUAL PIPELINED 45MSPS 8BIT PARALLEL 28TQFN - Rail/Tube
MAX1193ETI+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 2Ch 45Msps 3.6V Precision 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
MAX1193ETI+TD 制造商:Maxim Integrated Products 功能描述:ADC DUAL PIPELINED 45MSPS 8BIT PARALLEL 28TQFN - Tape and Reel
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