In the datasheet of AD9237, Table7 descibes reference configurations.
when I use programmable reference configuration or external reference, what is the allowable voltage range of VREF?
In External Reference Operation section of the datasheet, I found…
Hello.
I want to evaluate AD9237 but evaluation board does not exist.
I will try to evaluate AD9237 using a compatible AD9235 evaluation board.
So, I confirmed that some pin functions are different, but it is OK to replace
AD2935 from AD9237, or is it…
According to table.8 in the datasheet, span_factor is set by MODE2 pin voltage.
what are voltage allowance for 1/3A VDD and 2/3 AVDD?
when is span_factor and resulting differential span is fixed?
Hello
Please let me know about reference setting of AD9237 soon because I am designing and need to finish by this week,.
Is there any wrong with description of AD9237 datasheet P.18 table 7_Internal Fixed Reference ?
Datasheet Table 7 says below
…Hello
We check power consumption of AD9237-40 both power scaling enable and disable .
Datasheet figure 43 and 44 describle only power consumption by 10MSPS at power scaling disable and enable.
Please let me knoe about power consumption when we use AD9237…
Hello
Please let me know about the threshold of mode pin in AD9237-40.
Datasheet P.20 describes below but does not describe threhold.
Mode2 ; Span ; Power scaling
AVDD ; 1; Disabled
2/3 AVDD ; 1; Enabled
1/3 AVDD ; 2 ;Enabled
AGND ; 2 ;Disable…
Hello,
The AD9280 is much older ADC thus really is not recommended. Since you are simply buying an eval board, I would consider a higher resolution ADC like the 12-bit AD9237. The AD9237 is a monolithic, single 3 V supply, 12-bit, 20/40/65 MSPS Analog…
Thanks for the information,
Obviously I overlooked this figure.
Upgrading to AD9237 is however no option to me due to nontechnical reasons.
However an external Reference seems useful.
Norman
很抱歉，我们没有输入范围可以到500V的ADC器件。
建议使用分压电阻网络将500V分压后，再接入ADC，分压的比例可以按照所选ADC的满量程范围来确定。
后面ADC的型号可以看一下AD6640，AD9226，AD9235-65，AD9237-65，AD9629-65。
Hello,
The AD9225 is one of the 1st generation 12-bit CMOS ADC's released in the late 1990's. As you state, it does not include a PWDN pin which exists on future generations of this product family. No additional delay is required (other than…
