REF191 Datasheet, PDF (10/24 Pages) Analog Devices – Precision Micropower, Low Dropout Voltage References

REF19x Series
REF195–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (@ V_S = 5.20 V, –40؇C ≤ T_A ≤ +125؇C, unless otherwise noted.)
Parameter
Symbol
Condition
Min Typ
TEMPERATURE COEFFICIENT^{1, 2}
E Grade
TCV_O/°C
I_OUT = 0 mA
2
F Grade
5
G Grade³
10
LINE REGULATION⁴
E Grade
F and G Grades
⌬V_O /⌬V_IN
5.20 V ≤ V_S ≤ 15 V, I_OUT = 0 mA
5
10
LOAD REGULATION⁴
E Grade
F and G Grades
⌬V_O /⌬V_LOAD V_S = 6.45 V, 0 mA ≤ I_OUT ≤ 20 mA
5
10
DROPOUT VOLTAGE
V_S – V_O
V_S = 5.60 V, I_LOAD = 10 mA
V_S = 6.45 V, I_LOAD = 20 mA
NOTES
1_{For proper operation, a 1 µF capacitor is required between the output pin and the GND pin of the device.}
2_{TCVO is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/ °C.}
TCV_O = (V_MAX – V_MIN)/ V_O(T_MAX – T_MIN).
3_{Guaranteed by characterization.}
4_{Line and load regulation specifications include the effect of self-heating.}
Specifications subject to change without notice.
Max Unit
ppm/°C
ppm/°C
ppm/°C
ppm/V
ppm/V
ppm/mA
ppm/mA
0.60 V
1.45 V
REF196–SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (@ V_S = 3.5 V, T_A = 25؇C, unless otherwise noted.)
Parameter
Symbol
Condition
Min Typ
INITIAL ACCURACY¹
G Grade
LINE REGULATION²
G Grades
LOAD REGULATION²
G Grade
V_O
I_OUT = 0 mA
3.290 3.3
⌬V_O /⌬V_IN
3.50 V ≤ V_S ≤ 15 V, I_OUT = 0 mA
4
⌬V_O /⌬V_LOAD V_S = 5.0 V, 0 mA ≤ I_OUT ≤ 30 mA
6
DROPOUT VOLTAGE
V_S – V_O
V_S = 4.1 V, I_LOAD = 10 mA
V_S = 4.3 V, I_LOAD = 30 mA
LONG-TERM STABILITY³
DV_O
1000 Hours @ 125°C
1.2
NOISE VOLTAGE
e_N
0.1 Hz to 10 Hz
33
NOTES
1_{Initial accuracy includes temperature hysteresis effect.}
2_{Line and load regulation specifications include the effect of self-heating.}
3_{Long-term drift is guaranteed by 1000 hours life test performed on three independent wafer lots at 125 °C, with an LTPD of 1.3.}
Specifications subject to change without notice.
Max Unit
3.310 V
8
ppm/V
15
ppm/mA
0.80 V
1.00 V
mV
µV p-p
–10–
REV. E