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参数资料
| 型号： | LTC6912CGN-1#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 19/24页 |
| 文件大小： | 0K |
| 描述： | IC PGA DIGITAL R-R DUAL 16SSOP |
| 标准包装： | 2,500 |
| 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： | 33MHz |
| 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： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SSOP |
| 包装： | 带卷 (TR) |
LTC6912
4
6912fa
ELECTRICAL CHARACTERISTICS The ● denotes the specifications that apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VS = 5V, AGND = 2.5V, Gain = 1, RL = 10k to midsupply point, unless
otherwise noted.
C, I GRADES
H GRADE
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Specifications for Both the LTC6912-1 and the LTC6912-2
Total Supply Voltage (VS)
●
2.7
10.5
2.7
10.5
V
Supply Current per Channel
Both Amplifiers Active (Gain = 1)
VS = 2.7V, VINA = VINB = VAGND
●
1.75
2.75
1.75
3.0
mA
VS = 5V, VINA = VINB = VAGND
●
2.0
3.0
2.0
3.25
mA
VS = ±5V, VINA = VINB = 0V
●
2.25
3.5
2.25
3.75
mA
Supply Current per Channel
Both Amplifiers Inactive (State 1000)
(Software Shutdown)
VS = 2.7V, VINA = VINB = VAGND
●
150
255
150
280
A
VS = 5V, VINA = VINB = VAGND
●
200
325
200
350
A
VS = ±5V, VINA = VINB = 0V
●
265
750
265
750
A
Total-Supply Current
VS = 2.7V, VSHDN = 2.43V
●
0.3
2
0.3
5
A
(Hardware Shutdown,
VS = 5V, VSHDN = 4.5V
●
3.6
10
3.6
10
A
GN-16 Package Only)
VS = ±5V, VSHDN = 4.5V
●
20
50
20
50
A
Output Voltage Swing LOW
VS = 2.7V, RL = 10k Tied to Midsupply Point
●
12
30
12
35
mV
(Note 4)
VS = 2.7V, RL = 500 Tied to Midsupply Point ●
60
110
50
125
mV
VS = 5V, RL = 10k Tied to Midsupply Point
●
20
40
20
45
mV
VS = 5V, RL = 500 Tied to Midsupply Point
●
100
170
90
190
mV
VS = ±5V, RL = 10k Tied to 0V
●
30
50
30
60
mV
VS = ±5V, RL = 500 Tied to 0V
●
190
260
80
290
mV
Output Voltage Swing HIGH
VS = 2.7V, RL = 10k Tied to Midsupply Point
●
10
20
10
25
mV
(Note 4)
VS = 2.7V, RL = 500 Tied to Midsupply Point ●
50
80
50
90
mV
VS = 5V, RL = 10k Tied to Midsupply Point
●
15
30
15
35
mV
VS = 5V, RL = 500 Tied to Midsupply Point
●
90
160
80
175
mV
VS = ±5V, RL = 10k Tied to 0V
●
20
40
20
45
mV
VS = ±5V, RL = 500 Tied to 0V
●
180
250
180
270
mV
Output Short-Circuit Current
VS = 2.7V
●
±27
mA
(Note 5)
VS = ±5V
●
±35
mA
AGND Open-Circuit Voltage
VS = Single 5V Supply, VSHDN = 0.5V
●
2.45
2.5
2.55
2.45
2.5
2.55
V
(GN-16 Package Only)
VS = Single 5V Supply, VSHDN = 4.5V
2.65
V
AGND (Common Mode)
VS = Single 2.7V Supply
●
0.55
1.6
0.55
1.6
V
Input Voltage Range
VS = Single 5V Supply
●
0.75
3.65
0.75
3.65
V
VS = ±5V
●
–4.3
3.2
–4.3
3.2
V
AGND Rejection (i.e., Common
VS = 2.7V, VAGND = 1.1V to 1.6V
●
55
80
50
80
dB
Mode Rejection or CMRR)
VS = ±5V, VAGND = –2.5V to 2.5V
●
55
75
50
75
dB
Power Supply Rejection Ratio (PSRR) VS =2.7V to ±5V
●
60
80
57
80
dB
Slew Rate
Gain = 1
VS = 5V, VOUTA = VOUTB = 1.1V to 3.9V
12
V/
s
VS = ±5V, VOUTA = VOUTB = ±1.4V
16
V/
s
Gain = 10 (–1), Gain = 8 (–2)
VS = 5V, VOUTA = VOUTB = 1.1V to 3.9V
20
V/
s
VS = ±5V, VOUTA = VOUTB = ±1.4V
26
V/
s
Signal Attenuation at Gain = 0 Setting
Gain = 0 (Digital Inputs 0000),
●
–120
dB
f = 200kHz
Signal Attenuation in Software
(State = 1000)
●
–120
dB
Shutdown
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