參數(shù)資料
型號: MAX19507ETM+
廠商: Maxim Integrated Products
文件頁數(shù): 25/35頁
文件大?。?/td> 0K
描述: IC ADC 8BIT 2CH 130MSPS 48TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 43
位數(shù): 8
采樣率(每秒): 130M
數(shù)據(jù)接口: 串行,并聯(lián)
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 171mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 48-TQFN-EP(7x7)
包裝: 托盤
輸入數(shù)目和類型: 4 個(gè)單端,單極;2 個(gè)差分,單極
MAX19507
Dual-Channel, 8-Bit, 130Msps ADC
______________________________________________________________________________________
31
Applications Information
Analog Inputs
Transformer-Coupled Differential Analog Input
The MAX19507 provides better SFDR and THD with
fully differential input signals than a single-ended input
drive. In differential input mode, even-order harmonics
are lower as both inputs are balanced, and each of the
ADC inputs only require half the signal swing compared
to single-ended input mode.
An RF transformer (Figure 18) provides an excellent
solution for converting a single-ended signal to a fully
differential signal. Connecting the center tap of the
transformer to CM_ provides a common-mode voltage.
The transformer shown has an impedance ratio of 1:1.4.
Alternatively, a different step-up transformer can be
selected to reduce the drive requirements. A reduced
signal swing from the input driver can also improve the
overall distortion. The configuration of Figure 18 is good
for frequencies up to Nyquist (fCLK/2).
Figure 17. Integrated Voltage Regulator
IN
2.3V TO 3.5V
ENABLE
OUT
1.8V
REGULATOR
REFERENCE
INTERNAL
ANALOG
CIRCUITS
AVDD
(PINS 1, 12, 13, 48)
GND
Figure 19. Transformer-Coupled Input Drive for Input Frequencies Beyond Nyquist
1
5
3
6
2
4
N.C.
VIN
0.1
F
T1
MINI-CIRCUITS
ADT1-1WT
IN_+
CM_
IN_-
N.C.
1
5
3
6
2
4
N.C.
T2
MINI-CIRCUITS
ADT1-1WT
N.C.
75
0.5%
75
0.5%
110
0.5%
110
0.5%
0.1
F
MAX19507
Figure 18. Transformer-Coupled Input Drive for Input
Frequencies Up to Nyquist
MAX19507
1
5
3
6
2
4
N.C.
VIN
0.1
F
T1
MINI-CIRCUITS
ADT1-1WT
36.5
0.5%
36.5
0.5%
0.1
F
IN_+
CM_
IN_-
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MAX19507ETM+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 2Ch 130Msps 1.8V 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
MAX19507ETM+T 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 2Ch 130Msps 1.8V 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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MAX19515ETM/V+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual-Channel 10-Bit 65Msps 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