Dear Elso Kwak,
\
sorry for my mistake. I hadn't any experience use opa627 before so I didn't know the betal can steel had 'BM' version.
Tomorrow morning I will make a long distance call to my friend in taiwan about 'BM' version. If he had stock, I will call him post to me with the 20 pcs CS8412 to me.
Hope I can get them.
But actually my friend told me that metal can version nowadays will not easy to collect!!!
How about the performance between plastic DIL B-grade compare with metal can AM version.
OPA 627 metal can version is not cheap. If the performance is very close.I will not order from Taiwan, My kit only follow with AN or BN DIP only.
Cost too much money will not suitable & good news to diyers.
thx
thomas
\
sorry for my mistake. I hadn't any experience use opa627 before so I didn't know the betal can steel had 'BM' version.
Tomorrow morning I will make a long distance call to my friend in taiwan about 'BM' version. If he had stock, I will call him post to me with the 20 pcs CS8412 to me.
Hope I can get them.
But actually my friend told me that metal can version nowadays will not easy to collect!!!
How about the performance between plastic DIL B-grade compare with metal can AM version.
OPA 627 metal can version is not cheap. If the performance is very close.I will not order from Taiwan, My kit only follow with AN or BN DIP only.
Cost too much money will not suitable & good news to diyers.
thx
thomas
dear Elso Kwak,
unfortunately my friend hadn't metal can 'BM' on hand, but he promised me that will try his best search in the market. He will inform me the stock & price to me first before he order.
Pls see the another stock of CS8412 today EMS to me from Taiwan. I prepare use into my kit for diyers themselves choose CS8412 or CS8414 be the twin 1541a digital receiver.
thx
thomas
unfortunately my friend hadn't metal can 'BM' on hand, but he promised me that will try his best search in the market. He will inform me the stock & price to me first before he order.
Pls see the another stock of CS8412 today EMS to me from Taiwan. I prepare use into my kit for diyers themselves choose CS8412 or CS8414 be the twin 1541a digital receiver.
thx
thomas
Attachments
Interestingly, the datasheet of the THS4631 goes into long descriptions of how good this chip is as transimpedance amplifier.
Here are the usual specs :
High Bandwidth:
– 325 MHz in Unity Gain operation
– 210 MHz Gain Bandwidth Product
High Slew Rate:
– 900 V/µs (G = 2)
– 1000 V/µs (G = 5)
Low Distortion of –76 dB, SFDR at 5 MHz
Maximum Input Bias Current: 100 pA
Input Voltage Noise: 7 nV/ÖHz
Maximum Input Offset Voltage: 500 µV at 25°C
Low Offset Drift: 2.5 µV/°C
Input Impedance: 10e9 || 3.9 pF
Wide Supply Range: ± 5 V to ± 15 V
High Output Current: 95 mA
The datasheet : http://focus.ti.com/lit/ds/symlink/ths4631.pdf
Here are the usual specs :
High Bandwidth:
– 325 MHz in Unity Gain operation
– 210 MHz Gain Bandwidth Product
High Slew Rate:
– 900 V/µs (G = 2)
– 1000 V/µs (G = 5)
Low Distortion of –76 dB, SFDR at 5 MHz
Maximum Input Bias Current: 100 pA
Input Voltage Noise: 7 nV/ÖHz
Maximum Input Offset Voltage: 500 µV at 25°C
Low Offset Drift: 2.5 µV/°C
Input Impedance: 10e9 || 3.9 pF
Wide Supply Range: ± 5 V to ± 15 V
High Output Current: 95 mA
The datasheet : http://focus.ti.com/lit/ds/symlink/ths4631.pdf
I'd say sheer horror is that picture: http://www.diyaudio.com/forums/attachment.php?s=&postid=683355&stamp=1121530416
