参数资料
型号: LTC6912IDE-2#PBF
厂商: Linear Technology
文件页数: 6/24页
文件大小: 0K
描述: IC PGA DIGITAL R-R DUAL 12-DFN
标准包装: 91
放大器类型: 可编程增益
电路数: 2
输出类型: 满摆幅
转换速率: 26 V/µs
增益带宽积: 30MHz
电压 - 输入偏移: 125µV
电流 - 电源: 2.25mA
电流 - 输出 / 通道: 35mA
电压 - 电源,单路/双路(±): 2.7 V ~ 10.5 V,±2.7 V ~ 5.25 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 12-WFDFN 裸露焊盘
供应商设备封装: 12-DFN-EP(4x3)
包装: 管件
LTC6912
14
6912fa
FREQUENCY (kHz)
GAIN
(dB)
40
30
20
10
0
–10
1
100
1000
10000
6912 G14a
10
GAIN OF 64
GAIN OF 32
GAIN OF 16
GAIN OF 8
GAIN OF 4
GAIN OF 2
GAIN OF 1
VS = ±5V
VIN = 10mVRMS
FREQUENCY (kHz)
1
CHANNEL-TO-CHANNEL
GAIN
MA
TCH
(dB)
100
10000
0.100
0.075
0.050
0.025
0
–0.025
–0.050
–0.075
–0.100
6912 G15
10
1000
VS = ±5V
VIN = 10mVRMS
RL = 10k
GAIN OF 64
GAIN = 64
GAIN = 8
GAIN = 1
GAIN OF 8
GAIN OF 1
GAIN (V/V)
1
0.4
–3dB
FREQUENCY
(MHz)
1.0
0.8
0.6
8.0
6.0
4.0
2.0
10
100
6912 G16
VIN = 10mVRMS
VS = ±5V
VS = 2.7V
FREQUENCY (kHz)
100
CHANNEL-TO-CHANNEL
I
S
OLATION
(dB)
125
120
115
110
105
100
95
90
85
80
1000
6912 G17
VS = 5V
VOUT = 1VRMS
TOTAL
S
UPPLY
CURRENT
(A)
TEMPERATURE (°C)
–50
25
75
–25
0
50
100
125
6912 G10
10
1
0.1
HARDWARE SHUTDOWN (GN-16 ONLY)
VS = ±5V
VS = 5V
VS = 3V
VS = 2.7V
TEMPERATURE (°C)
–50
TOTAL
S
UPPLY
CURRENT
(A)
700
600
500
400
300
200
100
25
75
6912 G11
–25
0
50
100
125
TEMPERATURE (°C)
–50
25
75
6912 G14
–25
0
50
100
125
TEMPERATURE (°C)
–50
25
75
6912 G13
–25
0
50
100
125
TEMPERATURE (°C)
–50
TOTAL
S
UPPLY
CURRENT
(mA)
100
6912 G12
050
5.00
4.75
4.50
4.25
4.00
3.75
3.50
3.25
3.00
–25
25
75
125
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
–0.25
GAIN
CHANGE
(dB)
0.5
0
–0.5
–1.0
–1.5
GAIN
CHANGE
(dB)
BOTH AMPLIFIERS IN
SOFTWARE SHUTDOWN
RL = 10k
VS = ±5V
VS = 5V
VS = 2.7V
BOTH AMPLIFIERS
PROGRAMMED TO GAIN = 1
RL = 10k
VS = ±5V
VS = 5V
VS = 2.7V
GAIN OF 1
GAIN OF 10
GAIN OF 100
VS = 5V
RL = 10k
GAIN OF 1
GAIN OF 10
GAIN OF 100
VS = 5V
RL = 500
LTC6912-1 Hardware Shutdown
Total Supply Current vs
Temperature
LTC6912-1 Software Shutdown
Total Supply Current vs
Temperature
LTC6912-1 Total Supply Current
vs Temperature (Both Amplifiers
Active)
LTC6912-1 Gain Shift vs
Temperature (Light Load)
LTC6912-2
Frequency Response
LTC6912-2 Channel Gain
Matching vs Frequency
LTC6912-2 –3dB Bandwidth vs
Gain Setting
LTC6912-2 Channel Isolation vs
Frequency
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LTC6912-1 Gain Shift vs
Temperature (Heavy Load)
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