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参数资料
| 型号： | AD8251-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 19/24页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD8251 PGA |
| 标准包装： | 1 |
| 系列： | iCMOS® |
| 每 IC 通道数： | 1 - 单 |
| 放大器类型： | 仪表 |
| 输出类型： | 单端 |
| 转换速率： | 20 V/µs |
| -3db带宽： | 10MHz |
| 工作温度： | -40°C ~ 85°C |
| 电流供应（主 IC）： | 4.1mA |
| 电压 - 电源，单路/双路(±)： | 5 V ~ 15 V |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | AD8251 |
AD8251
Rev. B | Page 4 of 24
Parameter
Conditions
Min
Typ
Max
Unit
Settling Time 0.001%
ΔOUT = 10 V step
G = 1
785
ns
G = 2
700
ns
G = 4
700
ns
G = 8
770
ns
Slew Rate
G = 1
20
V/μs
G = 2
30
V/μs
G = 4
30
V/μs
G = 8
30
V/μs
Total Harmonic Distortion + Noise
f = 1 kHz, RL = 10 kΩ, ±10 V,
G = 1, 10 Hz to 22 kHz band-
pass filter
110
dB
GAIN
Gain Range
G = 1, 2, 4, 8
1
8
V/V
Gain Error
OUT = ±10 V
G = 1
0.03
%
G = 2, 4, 8
0.04
%
Gain Nonlinearity
OUT = 10 V to +10 V
G = 1
RL = 10 kΩ, 2 kΩ, 600 Ω
9
ppm
G = 2
RL = 10 kΩ, 2 kΩ, 600 Ω
12
ppm
G = 4
RL = 10 kΩ, 2 kΩ, 600 Ω
12
ppm
G = 8
RL = 10 kΩ, 2 kΩ, 600 Ω
15
ppm
Gain vs. Temperature
All gains
3
10
ppm/°C
INPUT
Input Impedance
Differential
5.3||0.5
GΩ
||pF
Common Mode
1.25||2
GΩ
||pF
Input Operating Voltage Range
VS = ±5 V to ±15 V
VS + 1.5
+VS 1.5
V
Over Temperature
T = 40°C to +85°C
VS + 1.6
+VS 1.7
V
OUTPUT
Output Swing
13.5
+13.5
V
Over Temperature
T = 40°C to +85°C
13.5
+13.5
V
Short-Circuit Current
37
mA
REFERENCE INPUT
RIN
20
kΩ
IIN
+IN, IN, REF = 0
1
μA
Voltage Range
VS
+VS
V
Gain to Output
1 ± 0.0001
V/V
DIGITAL LOGIC
Digital Ground Voltage, DGND
Referred to GND
VS + 4.25
0
+VS 2.7
V
Digital Input Voltage Low
Referred to GND
DGND
2.1
V
Digital Input Voltage High
Referred to GND
2.8
+VS
V
Digital Input Current
1
μA
Gain Switching Time1
325
ns
tSU
See Figure 3 timing diagram
20
ns
tHD
See Figure 3 timing diagram
10
ns
t WR -LOW
See Figure 3 timing diagram
20
ns
t WR -HIGH
See Figure 3 timing diagram
40
ns
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