Datasheet

AD8270
Rev. 0 | Page 4 of 20
V
S
= ±5 V, V
REF
= 0 V, T
A
= 25°C, R
LOAD
= 2 kΩ, specifications referred to input, unless otherwise noted.
Table 3.
G = 0.5 G = 1 G = 2
Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit
DYNAMIC PERFORMANCE
Bandwidth 20 15 10 MHz
Slew Rate 30 30 30 V/μs
Settling Time to 0.01% 5 V step on output 550 650 550 650 550 650 ns
Settling Time to 0.001% 5 V step on output 600 750 600 750 600 750 ns
NOISE/DISTORTION
Harmonic Distortion
f = 1 kHz, V
OUT
= 5 V p-p,
R
LOAD
= 600 Ω
101 141 112 dB
Voltage Noise
1
f = 0.1 Hz to 10 Hz 2 1.5 1 μV p-p
f = 1 kHz 52 38 26 nV/√Hz
GAIN
Gain Error 0.08 0.08 0.08 %
Gain Drift T
A
= −40°C to +85°C 1 10 1 10 1 10 ppm/°C
INPUT CHARACTERISTICS
Offset
2
450 1500 300 1000 225 750 μV
Average Temperature Drift T
A
= −40°C to +85°C 3 2 1.5 μV/°C
Common-Mode Rejection Ratio DC to 1 kHz 70 86 76 92 80 98 dB
Power Supply Rejection Ratio 2 10 2 10 2 10 dB
Input Voltage Range
3
−5.4 +5.4 −5.4 +5.4 −5.4 +5.4 V
Common-Mode Resistance
4
7.5 10 7.5 kΩ
Bias Current 500 500 500 nA
OUTPUT CHARACTERISTICS
Output Swing −4 +4 −4 +4 −4 +4 V
T
A
= −40°C to +85°C −3.9 +3.9 −3.9 +3.9 −3.9 +3.9 V
Short-Circuit Current Limit Sourcing 100 100 100 mA
Sinking 60 60 60 mA
POWER SUPPLY
Supply Current (per Amplifier) 2.3 2.5 2.3 2.5 2.3 2.5 mA
T
A
= −40°C to +85°C 3 3 3 mA
1
Includes amplifier voltage and current noise, as well as noise of internal resistors.
2
Includes input bias and offset errors.
3
At voltages beyond the rails, internal ESD diodes begin to turn on. In some configurations, the input voltage range may be limited by the internal op amp (see the
Input Voltage Range section for details).
4
Internal resistors are trimmed to be ratio matched but have ±20% absolute accuracy. Common-mode resistance was calculated with both inputs in parallel. Common-
mode impedance at only one input is 2× the resistance listed.