Datasheet

AD8432 Data Sheet
Rev. C | Page 4 of 32
Parameter Conditions Min Typ Max Unit
Two-Tone IMD3 Distortion R
S
= 50 Ω, R
IN
unterminated
10 MHz V
OUT
= 1 V p-p, f1 = 9.5 MHz, f2 = 10.5 MHz −89.1 dBc
V
OUT
= 2 V p-p, f1 = 9.5 MHz, f2 = 10.5 MHz −66.0 dBc
1 MHz V
OUT
= 1 V p-p, f1 = 0.9 MHz, f2 = 1.1 MHz −88.9 dBc
V
OUT
= 2 V p-p, f1 = 0.9 MHz, f2 = 1.1 MHz
−73.7
dBc
Input 1dB Compression Point f = 1 MHz 7.5 dBm
f = 10 MHz 7.7 dBm
Output Third-Order Intercept
1 MHz V
OUT
= 1 V p-p of composite tones 29.7 dBV rms
V
OUT
= 2 V p-p of composite tones 28.2 dBV rms
10 MHz V
OUT
= 1 V p-p of composite tones 23.2 dBV rms
V
OUT
= 2 V p-p of composite tones 24.2 dBV rms
1 MHz V
OUT
= 1 V p-p of composite tones, reference to 50 Ω 42.7 dBm
V
OUT
= 2 V p-p of composite tones, reference to 50 Ω 41.2 dBm
10 MHz V
OUT
= 1 V p-p of composite tones, reference to 50 Ω 36.2 dBm
V
OUT
= 2 V p-p of composite tones, reference to 50 Ω 37.2 dBm
Crosstalk V
OUT
= 1 V p-p, f = 1 MHz 102 dB
DC PERFORMANCE
Input Offset Voltage
−6.25
+1
+6.25
mV
Input Offset Voltage Drift 300 µV/°C
INPUT CHARACTERISTICS
Input Voltage Range AC-coupled 1.2 V p-p
Input Resistance R
FB
= 150 Ω 50 Ω
R
FB
= 226 Ω 75 Ω
R
FB
= 301 Ω 100 Ω
R
FB
= 619 Ω 200 Ω
R
FB
= 3.57 kΩ 1 kΩ
R
FB
= ∞, f = 100 kHz 6.2 kΩ
Input Capacitance 6 pF
Input Common-Mode Voltage 3.25 V
OUTPUT CHARACTERISTCS
Output Common-Mode Voltage 2.5 V
Output Offset Voltage −25 +4 +25 mV
Output Voltage Swing 4.8 V p-p
Output Resistance Single-ended, either output <0.1 Ω
Output Resistance in Shutdown Mode Single-ended, either output 2.5 kΩ
Output Short-Circuit Current R
L
= 10 Ω differential 77 mA
Enable Response Time ENB
ON
(enable high to output on) 200 µs
ENB
OFF
(enable low to output off) 200 µs
POWER SUPPLY
Supply Voltage 4.5 5 5.5 V
Quiescent Current ENB = 5 V 24 mA
Over Temperature T
A
= −40°C 21 mA
T
A
= +85°C
27
mA
Supply Current in Shutdown Mode ENB = GND 50 100 µA
Power Dissipation 120 mW
PSRR G = 24.08 dB, f = 100 kHz, no bypass capacitors −82 dB