TS8388BMFSB_Q Atmel Corporation, TS8388BMFSB_Q Datasheet - Page 37

• Manufacturer Part Number: TS8388BMFSB_Q
• Description: ADC 8-bit 1 Gsps.
• Manufacturer: Atmel Corporation

Diode Pin 49
ADC Gain Control
Pin 60
2144C–BDC–04/03
A standard technique for reducing the amplitude of such errors down to
putting the digital datas in Gray code format. Though the TS8388B has been designed for
featuring a Bit Error Rate of 10
select between the Binary or Gray output data format, in order to reduce the amplitude of such
errors when occurring, by storing Gray output codes.
Digital Datas format selection:
•
•
One single pin is used for both DRRB input command and die junction monitoring. The pin
denomination is DRRB/DIOD. Temperature monitoring and Data Ready control by DRRB is
not possible simultaneously.
(See “Principle of Data Ready Signal Control by DRRB Input Command” on page 28 for Data
Ready Reset input command).
The operating die junction temperature must be kept below 145 C, therefore an adequate
cooling system has to be set up. The diode mounted transistor measured Vbe value versus
junction temperature is given below.
Figure 40. Diode Pin 49
The ADC gain is adjustable by the means of the pin 60 (input impedance is 1 M
with 2 pF).
The gain adjust transfer function is given below.
BINARY output format if GORB is floating or V
GRAY output format if GORB is connected to ground (0V).
1000
960
920
880
840
800
760
720
680
640
600
-55
-35
-15
-13
with a binary output format, it is possible for the user to
5
Junction temperature (°C)
25
CC
45
.
65
85
±
1 lsb consists of out-
105
TS8388B
125
in parallel
37