Datasheet

ADR280
Rev. C | Page 3 of 12
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
V
IN
= 2.55 V to 5.5 V, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ
1
Max Unit
Output Voltage V
OUT
2.4 V < V
IN
< 5.5 V, 0 μA < I
OUT
< 10 μA, −40°C < T
A
< +85°C 1.195 1.200 1.205 V
Temperature Coefficient TCV
O
0°C < T
A
< 50°C 5 20 ppm/°C
–40°C < T
A
< +85°C 10 40 ppm/°C
Line Regulation ΔV
OUT
/ΔV
IN
2.55 V < V
IN
< 5.5 V, no load 2 12 ppm/V
Supply Current I
IN
2.4 V < V
IN
< 5.5 V, no load 10 16 μA
Ground Current I
GND
V– grounded, I
LOAD
= 10 μA 12 20 μA
Input Voltage Range V
IN
2.4 5.5 V
Operating Temperature Range T
A
−40 +85 °C
Nominal Load Capacitance C
OUT
1 μF
Output Noise Voltage V
N
rms f = 10 Hz to 10 kHz 12.5 μV rms
Voltage Noise Density e
N
f = 400 kHz 12.5 nV/√Hz
Power Supply Ripple Rejection
2
PSRR I
LOAD
= 10 μA −80 dB
Start-Up Time t
ON
2 ms
1
Typical values represent average readings taken at room temperature.
2
Power supply ripple rejection measurement applies to a changing input voltage (V
IN
) waveform with a nominal 3.6 V baseline that drops to a 3 V value for 380 μs at a
4.6 ms repetition rate.