ADA4800
Rev. A | Page 3 of 16
SPECIFICATIONS
BUFFER ELECTRICAL CHARACTERISTICS
T
A
= 25°C, V
CC
= 15 V, V
EE
= 0 V, R
IDRV
= 249 k connected to V
IDRV
, R
LOAD
= 1 k in parallel with 22 pF in series with 10 , V
IN
= 7.5 V,
unless otherwise noted (see Figure 2 for a test circuit).
Table 1.
Parameter Condition Min Typ Max Unit
GAIN
Voltage Gain V
IN
= 6.5 V to 8.5 V, R
ISF
= 0 Ω 0.995 0.998 1.005 V/V
INPUT/OUTPUT CHARACTERISTICS
I/O Offset Voltage 30 41 mV
IDRV Current R
IDRV
= 249 kΩ, V
IDRV
= 15 V 52 59 μA
Input/Output Voltage Range V
EE
+ 1.4 V
CC
− 1.4 V
Input Bias Current (I
BUFF
) 1 μA
DYNAMIC PERFORMANCE
−3 dB Bandwidth R
IDRV
= 300 kΩ (I
CC
= 1.1 mA), V
OUT
= 0.1 V p-p 182 MHz
R
IDRV
= 150 kΩ (I
CC
= 2.1 mA), V
OUT
= 0.1 V p-p 288 MHz
R
IDRV
= 50 kΩ (I
CC
= 4.7 mA), V
OUT
= 0.1 V p-p 400 MHz
Slew Rate V
OUT
= 2 V step 415 V/μs
Rise Time V
IN
= 7.5 V to 8.5 V, 10% to 90% 2.2 ns
Fall Time V
IN
= 8.5 V to 7.5 V, 10% to 90% 1.8 ns
1% Settling Time V
IN
= 9.5 V to 7.5 V (falling edge) 5 ns
V
IN
= 7.5 V to 9.5 V (rising edge) 4.5 ns
V
IN
= 8.5 V to 7.5 V (falling edge) 4.5 ns
V
IN
= 7.5 V to 8.5 V (rising edge) 4 ns
I/O Delay Time V
IN
= 8.5 V to 7.5 V (falling edge) 0.4 ns
V
IN
= 7.5 V to 8.5 V (rising edge) 0.35 ns
Output Voltage Noise @ 20 MHz 1.5 nV/√Hz
POWER SUPPLY
Supply Voltage Range 4 15 17 V
Supply Current (I
CC
) 1.4 1.8 mA
OPERATING TEMPERATURE RANGE −40 +85 °C
ACTIVE CURRENT LOAD ELECTRICAL CHARACTERISTICS
T
A
= 25°C, V
EE
= 0 V, V
ISF
= 3 V, R
ISF
= 10 k connected to V
ISF
, V
IN
= 7.5 V, unless otherwise noted (see Figure 2 for a test circuit).
Table 2.
Parameter Condition Min Typ Max Unit
INPUT/OUTPUT CHARACTERISTICS
Active Load Current (I
AL
) V
ISF
= 0 V 1 μA
V
ISF
= 3 V 3 mA
V
ISF
= 7.5 V 12.7 mA
ISF Current (I
ISF
) R
ISF
= 10 kΩ 111 120 μA
Input Voltage Range V
EE
+ 1.7 V
CC
V
OPERATING TEMPERATURE RANGE −40 +85 °C
