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參數(shù)資料
| 型號： | LT5514 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | ADC |
| 英文描述： | Ultralow Distortion IF Amplifier/ADC Driver with Digitally Controlled Gain |
| 中文描述： | 超低失真IF放大器/ ADC的數(shù)字控制增益驅動 |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 275K |
| 代理商： | LT5514 |
2
LT5514
5514f
ORDER PART
NUMBER
(Notes 1, 2)
Power Supply Voltage (V
CC1
, V
CC2
) .......................... 6V
Output Supply Voltage (OUT
+
, OUT
–
) ....................... 8V
Control Input Voltage (ENA, ENB, PGAx).. –0.5V to V
CC
Signal Input Voltage (IN
+
, IN
–
) ................... –0.5V to 3V
Operating Ambient Temperature Range.. –40
°
C to 85
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
LT5514EFE
T
JMAX
= 150
°
C,
θ
JA
= 38
°
C/W
EXPOSED PAD (PIN 21) IS GND
MUST BE SOLDERED TO PCB
ABSOLUTE
AXI
U
RATIU
W
W
W
PACKAGE/ORDER I
FOR
ATIO
W
U
U
Consult LTC Marketing for parts specified with wider operating temperature ranges.
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
ENA
V
CC1
GND
GND
IN
+
IN
–
GND
GND
PGA0
PGA1
ENB
V
CC2
GND
GND
OUT
–
OUT
+
GND
GND
PGA3
PGA2
FE PACKAGE
20-LEAD PLASTIC TSSOP
21
ODES OF OPERATIO
W
U
MODES
ENA
High
High
Low
Low
ENB
High
Low
High
Low
AMP A
On
On
Off
Off
AMP B
On
Off
On
Off
LT5514 STATE
Enable Amp A and Amp B
Enable Amp A
Enable Amp B
Sleep, All Amps Disabled
1
2
3
4
Full Power (Standard)
Low Power A
Low Power B
Shutdown
ATTENUATION STEP
RELATIVE TO MAX GAIN
0dB
–1.5dB
–3.0dB
–4.5dB
–6.0dB
–7.5dB
–9.0dB
–10.5dB
–12.0dB
–13.5dB
–15.0dB
–16.5dB
–18.0dB
–19.5dB
–21.0dB
–22.5dB
*R
OUT
= 200
**R
OUT
= 400
POWER GAIN
PGA0
High
Low
High
Low
High
Low
High
Low
High
Low
High
Low
High
Low
High
Low
PGA1
High
High
Low
Low
High
High
Low
Low
High
High
Low
Low
High
High
Low
Low
PGA2
High
High
High
High
Low
Low
Low
Low
High
High
High
High
Low
Low
Low
Low
PGA3
High
High
High
High
High
High
High
High
Low
Low
Low
Low
Low
Low
Low
Low
STANDARD MODE*
33.0dB
31.5dB
30.0dB
28.5dB
27.0dB
25.5dB
24.0dB
22.5dB
21.0dB
19.5dB
18.0dB
16.5dB
15.0dB
13.5dB
12.0dB
10.5dB (Note 3)
LOW POWER MODE**
30.0dB
28.5dB
27.0dB
25.5dB
24.0dB
22.5dB
21.0dB
19.5dB
18.0dB
16.5dB
15.0dB
13.5dB
12.0dB
10.5dB
9.0dB
7.5dB (Note 3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PROGRW
W
U
U
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