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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 3 of 32
SPECIFICATIONS
V
S
(supply voltage) = 3.3 V, T
A
= 25°C, preamplifier gain = 2× (R
FB1
= R
FB2
= 100 Ω), V
VMDO
= V
S
/2, f = 10 MHz, C
L
= 5 pF, R
LOAD
= 500 Ω,
DGA differential output. All dBm values are referenced to 50 Ω, gain code 1011, unless otherwise specified.
Table 1.
Parameter Conditions Min Typ Max Unit
DRIVER AMPLIFIER—GENERAL PARAMETERS
–3 dB Small Signal Bandwidth V
OUT
= 10 mV p-p, R
LOAD
= 500 Ω 195 MHz
V
OUT
= 10 mV p-p, R
LOAD
= 50 Ω 120 MHz
V
OUT
= 10 mV p-p, R
LOAD
= 10 Ω 85 MHz
–3 dB Large Signal Bandwidth V
OUT
= 1 V p-p 195 MHz
V
OUT
= 2 V p-p 190 MHz
V
OUT
= 2 V p-p, R
LOAD
= 50 Ω 180 MHz
Slew Rate V
OUT
= 1 V p-p 730 V/µs
V
OUT
= 2 V p-p 725 V/µs
V
OUT
= 2 V p-p, R
LOAD
= 50 Ω 620 V/µs
Gain Nominal gain with internal gain setting resistors 3.0 3.52 dB
Input Voltage Noise f = 10 MHz 9.5 nV/√Hz
Noise Figure
R
S
= 100 Ω (differential, 2 × 50 Ω that convert
differential DAC output currents to differential voltage)
17.6 dB
Output-Referred Noise
Gain = 3.52 dB (1.5×), includes internal gain setting
resistors
14.3 nV/√Hz
Output Impedance DC to 10 MHz, V
S
= ±3.3 V ≤1.7 Ω
Output Current R
LOAD
= 1 Ω, V
IN
= ±0.5 V ±310 mA
Output Signal Range R
LOAD
≥ 500 Ω V
MDO
± 1.5 V
V
S
= +5 V V
MDO
± 2.3 V
V
S
= ±5 V
±4.7 V
Input Signal Range Differential input signal 2 V p-p
Output Offset Voltage Gain = 3.52 dB (1.5×), max and min limits are 3σ −20 ±5 +20 mV
DRIVER AMPLIFIER—DYNAMIC PERFORMANCE
Harmonic Distortion V
OUT
= 1 V p-p
HD2 f = 1 MHz −84 dBc
HD3 −85 dBc
HD2 f = 10 MHz −83 dBc
HD3 −70 dBc
Harmonic Distortion V
OUT
= 2 V p-p
HD2 f = 1 MHz −78 dBc
HD3 −76 dBc
HD2 f = 10 MHz −70 dBc
HD3 −58 dBc
Input 1 dB Compression Point 13 dBm
Multitone Power Ratio (MTPR, In-Band)
R
LOAD
= 50 Ω, V
OUT
= 1.4 V p-p max, 10 tones, 2 MHz to
22 MHz with missing tone at 12 MHz (spacing 2 MHz)
−49 dBc
R
LOAD
= 50 Ω, V
OUT
= 1.4 V p-p max, 16 tones, 2 MHz to
38 MHz with missing tones at 10 MHz, 20 MHz, 30 MHz,
and 40 MHz (spacing 2 MHz)
−43 dBc
Two-Tone Intermodulation Distortion (IMD3) V
OUT
= 1 V p-p, f
1
= 10 MHz, f
2
= 11 MHz −90 dBc
V
OUT
= 2 V p-p, f
1
= 10 MHz, f
2
= 11 MHz −71 dBc
V
OUT
= 1 V p-p, f
1
= 45 MHz, f
2
= 46 MHz −60 dBc
V
OUT
= 2 V p-p, f
1
= 45 MHz, f
2
= 46 MHz −48 dBc
Output Third-Order Intercept V
OUT
= 1 V p-p, f = 10 MHz 43 dBm
V
OUT
= 2 V p-p, f = 10 MHz 40 dBm
V
OUT
= 1 V p-p, f = 45 MHz 28 dBm
V
OUT
= 2 V p-p, f = 45 MHz 28 dBm
Two-Tone Intermodulation Distortion (IMD3),
R
LOAD
= 50 Ω
V
OUT
= 1 V p-p, f
1
= 10 MHz, f
2
= 11 MHz −69 dBc
V
OUT
= 2 V p-p, f
1
= 10 MHz, f
2
= 11 MHz −72 dBc
V
OUT
= 1 V p-p, f
1
= 45 MHz, f
2
= 46 MHz −51 dBc
V
OUT
= 2 V p-p, f
1
= 45 MHz, f
2
= 46 MHz −48 dBc
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