Datasheet

Data Sheet AD8370
Rev. B | Page 3 of 28
SPECIFICATIONS
V
S
= 5 V, T = 25°C, Z
S
= 200 Ω, Z
L
= 100 Ω at gain code HG127, 70 MHz, 1 V p-p differential output, unless otherwise noted.
Table 1.
Parameter Conditions Min Typ Max Unit
DYNAMIC PERFORMANCE
−3 dB Bandwidth V
OUT
< 1 V p-p 750 MHz
Slew Rate Gain Code HG127, R
L
= 1 kΩ, AD8370 in compression 5.75 V/ns
Gain Code LG127, RL = 1 kΩ, V
OUT
= 2 V p-p 3.5 V/ns
INPUT STAGE Pins INHI and IHLO
Maximum Input Gain Code LG2, 1 dB compression 3.2 V p-p
Input Resistance Differential 200 Ω
Common-Mode Input Range 3.2 V p-p
CMRR
Differential, f = 10 MHz, Gain Code LG127
77
dB
Input Noise Spectral Density 1.9 nV/√Hz
GAIN
Maximum Voltage Gain
High Gain Mode Gain Code = HG127 34 dB
52 V/V
Low Gain Mode Gain Code = LG127 17 dB
7.4 V/V
Minimum Voltage Gain
High Gain Mode Gain Code = HG1 −8 dB
0.4 V/V
Low Gain Mode Gain Code = LG1 −25 dB
0.06 V/V
Gain Step Size High Gain Mode 0.408 (V/V)/Code
Low Gain Mode
0.056
(V/V)/Code
Gain Temperature Sensitivity Gain Code = HG127 –2 mdB/°C
Step Response For 6 dB gain step, settled to 10% of final value 20 ns
OUTPUT INTERFACE Pins OPHI and OPLO
Output Voltage Swing R
L
≥ 1 kΩ (1 dB compression) 8.4 V p-p
Output Resistance Differential 95 Ω
Output Differential Offset V
INHI
= V
INLO
, over all gain codes ±60 mV
NOISE/HARMONIC PERFORMANCE
10 MHz
Gain Flatness Within ±10 MHz of 10 MHz ±0.01 dB
Noise Figure 7.2 dB
Second Harmonic
1
V
OUT
= 2 V p-p
−77
dBc
Third Harmonic
1
V
OUT
= 2 V p-p −77 dBc
Output IP3 35 dBm
Output 1 dB Compression Point 17 dBm
70 MHz
Gain Flatness Within ±10 MHz of 70 MHz ±0.02 dB
Noise Figure 7.2 dB
Second Harmonic
1
V
OUT
= 2 V p-p −65 dBc
Third Harmonic
1
V
OUT
= 2 V p-p −62 dBc
Output IP3 35 dBm
Output 1 dB Compression Point 17 dBm