Datasheet

AD8605/AD8606/AD8608 Data Sheet
Rev. N | Page 6 of 24
2.7 V ELECTRICAL SPECIFICATIONS
V
S
= 2.7 V, V
CM
= V
S
/2, T
A
= 25°C, unless otherwise noted.
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
AD8605/AD8606 (Except WLCSP) V
S
= 3.5 V, V
CM
= 3 V 20 65 µV
AD8608 V
S
= 3.5 V, V
CM
= 2.7 V 20 75 µV
AD8605/AD8606/AD8608 V
S
= 2.7 V, V
CM
= 0 V to 2.7 V 80 300 µV
−40°C < T
A
< +125°C 750 µV
Input Bias Current
I
B
0.2
1
pA
AD8605/AD8606 −40°C < T
A
< +85°C 50 pA
AD8605/AD8606 −40°C < T
A
< +125°C 250 pA
AD8608 −40°C < T
A
< +85°C 100 pA
AD8608 −40°C < T
A
< +125°C 300 pA
Input Offset Current I
OS
0.1 0.5 pA
−40°C < T
A
< +85°C 20 pA
−40°C < T
A
< +125°C 75 pA
Input Voltage Range 0 2.7 V
Common-Mode Rejection Ratio CMRR V
CM
= 0 V to 2.7 V 80 95 dB
−40°C < T
A
< +125°C 70 85 dB
Large Signal Voltage Gain A
VO
R
L
= 2 kΩ, V
O
= 0.5 V to 2.2 V 110 350 V/mV
Offset Voltage Drift
AD8605/AD8606 ΔV
OS
/ΔT −40°C < T
A
< +125°C 1 4.5 µV/°C
AD8608 ΔV
OS
/ΔT −40°C < T
A
< +125°C 1.5 6.0 µV/°C
INPUT CAPACITANCE
Common-Mode Input Capacitance C
COM
8.8 pF
Differential Input Capacitance C
DIFF
2.6 pF
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
L
= 1 mA 2.6 2.66 V
−40°C < T
A
< +125°C 2.6 V
Output Voltage Low V
OL
I
L
= 1 mA 25 40 mV
−40°C < T
A
< +125°C 50 mV
Output Current I
OUT
±30 mA
Closed-Loop Output Impedance Z
OUT
f = 1 MHz, A
V
= 1 1.2 Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR
AD8605/AD8606 V
S
= 2.7 V to 5.5 V 80 95 dB
AD8605/AD8606 WLCSP V
S
= 2.7 V to 5.5 V 75 92 dB
AD8608 V
S
= 2.7 V to 5.5 V 77 92 dB
−40°C < T
A
< +125°C 70 90 dB
Supply Current/Amplifier I
SY
I
OUT
= 0 mA 1.15 1.4 mA
−40°C < T
A
< +125°C 1.5 mA
DYNAMIC PERFORMANCE
Slew Rate
SR
R
L
= 2 kΩ, C
L
= 16 pF
5
V/µs
Settling Time t
S
To 0.01%, 0 V to 1 V step, A
V
= 1 <0.5 µs
Unity Gain Bandwidth Product GBP 9 MHz
Phase Margin Φ
M
50 Degrees