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AD8260-EVALZ 其他数据使用手册 - ADI（亚德诺）
制造商:
ADI（亚德诺）
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开发套件
描述:
大电流驱动器放大器和数字VGA /前置放大器为3 dB步 High Current Driver Amplifier and Digital VGA/Preamplifier with 3 dB Steps
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AD8260-EVALZ数据手册
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AD8260
Rev. A | Page 5 of 32
Parameter Conditions Min Typ Max Unit
ACCURACY
Absolute Gain Error All gain codes, limits are 3σ −0.5 ±0.15 +0.5 dB
Gain Law Conformance (DNL) Differential gain error code-to-code −0.3 ±0.15 +0.3 dB
GAIN CONTROL
Gain Step per Code 3.0 dB
Gain Range Default = −6dB to +24 dB 30 dB
Response Time 30 dB gain change (gain code stepped from 0001 to 1011) 50 ns
LOGIC INTERFACES
High Level Input Voltage 1.4 V
S
V
Low Level Input Voltage 0 0.8 V
Logic Input Bias Current Logic high, V
LOGIC
= 3.3 V 0.2 μA
Logic low 18 nA
POWER SUPPLY
Supply Voltage Single supply 3.3 10 V
Dual supply ±3.3 ±5 V
Quiescent Current Full chip enabled (TXEN = 1, ENBL = 1, gain code = 0001) 28.3 mA
TXEN = 0, ENBL = 1, gain code = 0001, driver off, DGA on 19.1 mA
TXEN = 1, ENBL = 1, gain code = 0000, driver on, DGA off 10.8 mA
Chip disabled (TXEN = 0, ENBL = 0, gain code = 0000) 35 µA
V
S
= ±5 V, no signal 34.2 mA
PSRR Max gain (gain code = 1011), gain = 24 dB, 1 MHz −30 dB
Driver amplifier, 1 MHz −48 dB
Power Dissipation No signal 93 mW
No signal, V
POS
− V
NEG
= 10 V 342 mW
ENABLE TIMES
Chip Enable Time Bias only, TXEN = 0, gain code = 0000, ENBL = 0 to 1 0.4 µs
All at once, TXEN = 0 to 1, gain code = 0000 to 0001,
ENBL = 0 to 1
0.3 µs
Preamplifier and DGA Enable Time ENBL = 1, TXEN = 0, gain code = 0000 to 0001 0.3 µs
Driver Enable Time ENBL = 1, gain code = 0001, TXEN stepped from 0 to 1 0.2 µs
DISABLE TIMES
Chip Disable Time
TXEN = 1 to 0, gain code = 0001 to 0000,
ENBL = 1 to 0, I
SUPPLY
= 100 μA
20 µs
All at once, TXEN = 1 to 0, gain code = 0001 to 0000,
ENBL = 1 to 0, I
SUPPLY
= 35 µA
50 µs
Preamplifier and DGA Disable Time ENBL = 1, TXEN = 0, gain code = 0001 to 0000 0.4 µs
Driver Disable Time ENBL = 1, gain code = 0000, TXEN = 1 to 0 2.2 µs
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