AD8138
DIN to OUT SPECIFICATIONS
At 25°C, VS = 5 V, VOCM = 2.5 V, G = +1, RL, dm = 500 Ω, unless otherwise noted. Refer to Figure 39 for test setup and label descriptions. All
specifications refer to single-ended input and differential output, unless otherwise noted.
Table 3.
Parameter
Conditions
Min
Typ
Max
Unit
DYNAMIC PERFORMANCE
−3 dB Small Signal Bandwidth
VOUT = 0.5 V p-p, CF = 0 pF
VOUT = 0.5 V p-p, CF = 1 pF
VOUT = 0.5 V p-p, CF = 0 pF
VOUT = 2 V p-p, CF = 0 pF
VOUT = 2 V p-p, CF = 0 pF
0.01%, VOUT = 2 V p-p, CF = 1 pF
VIN = 2.5 V to 0 V step, G = +2
280
310
225
29
265
950
16
MHz
MHz
MHz
MHz
V/μs
ns
Bandwidth for 0.1 dB Flatness
Large Signal Bandwidth
Slew Rate
Settling Time
Overdrive Recovery Time
NOISE/HARMONIC PERFORMANCE1
Second Harmonic
4
ns
VOUT = 2 V p-p, 5 MHz, RL, dm = 800 Ω
VOUT = 2 V p-p, 20 MHz, RL, dm = 800 Ω
VOUT = 2 V p-p, 70 MHz, RL, dm = 800 Ω
VOUT = 2 V p-p, 5 MHz, RL, dm = 800 Ω
VOUT = 2 V p-p, 20 MHz, RL, dm = 800 Ω
VOUT = 2 V p-p, 70 MHz, RL, dm = 800 Ω
20 MHz
20 MHz
f = 100 kHz to 40 MHz
f = 100 kHz to 40 MHz
−90
−79
−60
−100
−82
−53
−74
35
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBm
nV/√Hz
pA/√Hz
Third Harmonic
IMD
IP3
Voltage Noise (RTI)
Input Current Noise
INPUT CHARACTERISTICS
Offset Voltage
5
2
VOS, dm = VOUT, dm/2; VDIN+ = VDIN– = VOCM = 0 V
TMIN to TMAX variation
−2.5
1
4
+2.5
7
mV
μV/°C
μA
μA/°C
MΩ
MΩ
pF
Input Bias Current
Input Resistance
3.5
−0.01
6
3
TMIN to TMAX variation
Differential
Common mode
Input Capacitance
Input Common-Mode Voltage
CMRR
1
−0.3 to +3.2
−77
V
dB
∆VOUT, dm/∆VIN, cm; ∆VIN, cm = 1 V
−70
OUTPUT CHARACTERISTICS
Output Voltage Swing
Output Current
Maximum ∆VOUT; single-ended output
∆VOUT, cm/∆VOUT, dm; ∆VOUT, dm = 1 V
2.9
95
−65
V p-p
mA
dB
Output Balance Error
1 Harmonic distortion performance is equal or slightly worse with higher values of RL, dm. See Figure 17 and Figure 18 for more information.
Rev. F | Page 5 of 24
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