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参数资料
| 型号： | ADA4939-2YCPZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 20/24页 |
| 文件大小： | 0K |
| 描述： | IC AMP DIFF DUAL ULDIST 24LFCSP |
| 标准包装： | 5,000 |
| 放大器类型： | 差分 |
| 电路数： | 2 |
| 输出类型： | 差分 |
| 转换速率： | 6800 V/µs |
| -3db带宽： | 1.4GHz |
| 电流 - 输入偏压： | 10µA |
| 电压 - 输入偏移： | 500µV |
| 电流 - 电源： | 36.5mA |
| 电流 - 输出 / 通道： | 100mA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 5.25 V，±1.5 V ~ 2.625 V |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 24-LFCSP-VQ（4x4） |
| 包装： | 带卷 (TR) |
ADA4939-1/ADA4939-2
Rev. 0 | Page 5 of 24
3.3 V OPERATION
TA = 25°C, +VS = 3.3 V, VS = 0 V, VOCM = +VS/2, RF = 402 Ω, RG = 200 Ω, RT = 60.4 Ω (when used), RL, dm = 1 kΩ, unless otherwise noted.
All specifications refer to single-ended input and differential outputs, unless otherwise noted. Refer to Figure 42 for signal definitions.
±DIN to VOUT, dm Performance
Table 4.
Parameter
Conditions
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
3 dB Small Signal Bandwidth
VOUT, dm = 0.1 V p-p
1400
MHz
Bandwidth for 0.1 dB Flatness
VOUT, dm = 0.1 V p-p, ADA4939-1
300
MHz
VOUT, dm = 0.1 V p-p, ADA4939-2
90
MHz
Large Signal Bandwidth
VOUT, dm = 2 V p-p
1400
MHz
Slew Rate
VOUT, dm = 2 V p-p, 25% to 75%
5000
V/μs
Overdrive Recovery Time
VIN = 0 V to 1.0 V step, G = 3.16
<1
ns
NOISE/HARMONIC PERFORMANCE
See Figure 41 for distortion test circuit
Second Harmonic
VOUT, dm = 2 V p-p, 10 MHz
100
dBc
VOUT, dm = 2 V p-p, 70 MHz
90
dBc
VOUT, dm = 2 V p-p, 100 MHz
83
dBc
Third Harmonic
VOUT, dm = 2 V p-p, 10 MHz
94
dBc
VOUT, dm = 2 V p-p, 70 MHz
82
dBc
VOUT, dm = 2 V p-p, 100 MHz
75
dBc
IMD
f1 = 70 MHz, f2 = 70.1 MHz, VOUT, dm = 2 V p-p
87
dBc
f1 = 140 MHz, f2 = 140.1 MHz, VOUT, dm = 2 V p-p
70
dBc
Voltage Noise (RTI)
f = 100 kHz
2.3
nV/√Hz
Input Current Noise
f = 100 kHz
6
pA/√Hz
Crosstalk
f = 100 MHz, ADA4939-2
80
dB
INPUT CHARACTERISTICS
Offset Voltage
VOS, dm = VOUT, dm/2, VDIN+ = VDIN = +VS/2
3.5
±0.5
+3.5
mV
TMIN to TMAX variation
±2.0
μV/°C
Input Bias Current
26
10
+2.2
μA
TMIN to TMAX variation
±0.5
μA/°C
Input Offset Current
11.2
±0.4
+11.2
Input Resistance
Differential
180
kΩ
Common mode
450
kΩ
Input Capacitance
1
pF
Input Common-Mode Voltage
0.9
2.4
V
CMRR
VOUT, dm/VIN, cm, VIN, cm = ±1 V
85
75
dB
OUTPUT CHARACTERISTICS
Output Voltage Swing
Maximum VOUT, single-ended output, RF = RG = 10 kΩ
0.8
2.5
V
Linear Output Current
75
mA
Output Balance Error
VOUT, cm/VOUT, dm, VOUT, dm = 1 V, f = 10 MHz,
see Figure 40 for test circuit
61
dB
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