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AD8372 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 4 Page - Analog Devices

๋ถ€ํ’ˆ๋ช… AD8372
์ƒ์„ธ๋‚ด์šฉ  41 dB Range, 1 dB Step Size, Programmable Dual VGA
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AD8372 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 4 Page - Analog Devices

 
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AD8372
Rev. 0 | Page 4 of 16
Parameter
Conditions
Min
Typ
Max
Unit
POWER INTERFACE
Supply Voltage
4.5
5.5
V
Quiescent Current per Channel
Thermal connection made to exposed paddle under
device
106
mA
vs. Temperature
โˆ’40ยฐC โ‰ค TA โ‰ค +85ยฐC
135
mA
Power-Down Current, Both Channels
ENB1 and ENB2 low
1.2
mA
vs. Temperature
โˆ’40ยฐC โ‰ค TA โ‰ค +85ยฐC
1.3
mA
ENABLE INTERFACE
Pin ENB1 and Pin ENB2
Enable Threshold
Minimum voltage to enable the device
0.8
V
ENB1, ENB2 Input Bias Current
ENB1, ENB2 = 0 V
400
nA
GAIN CONTROL INTERFACE
Pin CLK1, Pin CLK2, Pin SDI1, Pin SDI2, Pin SDO1, Pin
SDO2, Pin LCH1, and Pin LCH2
VIH
Minimum voltage for a logic high
2.4
V
Input Bias Current
400
nA
Serial Port Output Feedthrough
Worse-case feedthrough from CLK1, CLK2, SDI1,
SDI2, SDO1, SDO2, LCH1, LCH2 to OPC1 and ONC2,
or OPC2 and ONC2
โˆ’60
dB
Table 2. Gain Code vs. Voltage Gain Look-Up Table
8-Bit Binary Gain Code1
Voltage Gain (dB)
RW DC 000000
< โˆ’60
RW DC 000001
โˆ’9
RW DC 000010
โˆ’8
RW DC 000011
โˆ’7
RW DC 000100
โˆ’6
RW DC 000101
โˆ’5
RW DC 000110
โˆ’4
RW DC 000111
โˆ’3
RW DC 001000
โˆ’2
RW DC 001001
โˆ’1
RW DC 001010
0
RW DC 001011
+1
RW DC 001100
+2
RW DC 001101
+3
RW DC 001110
+4
RW DC 001111
+5
RW DC 010000
+6
RW DC 010001
+7
RW DC 010010
+8
RW DC 010011
+9
RW DC 010100
+10
RW DC 010101
+11
1 RW is the Read/Write bit, RW = 0 for read mode, RW = 1 for write mode. DC is
the Donโ€™t Care bit.
8-Bit Binary Gain Code1
Voltage Gain (dB)
RW DC 010110
+12
RW DC 010111
+13
RW DC 011000
+14
RW DC 011001
+15
RW DC 011010
+16
RW DC 011011
+17
RW DC 011100
+18
RW DC 011101
+19
RW DC 011110
+20
RW DC 011111
+21
RW DC 100000
+22
RW DC 100001
+23
RW DC 100010
+24
RW DC 100011
+25
RW DC 100100
+26
RW DC 100101
+27
RW DC 100110
+28
RW DC 100111
+29
RW DC 101000
+30
RW DC 101001
+31
RW DC 101010
+32
RW DC 101011
< โˆ’60


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