ISL28005 Datasheet, PDF (6/14 Pages) Intersil Corporation – Micropower, Rail-to-Rail Input Current Sense Amplifier with Voltage Output

ISL28005
Electrical Specifications V_CC = 12V, V_RS+ = 0V to 28V, V_SENSE = 0V, R_LOAD = 1MΩ, T_A = +25°C unless otherwise specified.
Boldface limits apply over the operating temperature range, -40°C to +125°C.
Temperature data established by characterization. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNIT
t_s
Output Settling Time to 1% of Final V_CC = V_RS+ = 12V, V_OUT = 10V
15
µs
Value
step, V_SENSE >7mV
V_CC = V_RS+ = 0.2V, V_OUT = 10V
20
µs
step, V_SENSE >7mV
Capacitive-Load Stability
No sustained oscillations
300
pF
t_{s Power-up}
Power-Up Time to 1% of Final Value V_CC = V_RS+ = 12V,
V_SENSE = 100mV
15
µs
V_CC = 12V, V_RS+ = 0.2V
V_SENSE = 100mV
50
µs
Saturation Recovery Time
V_CC = V_RS+ = 12V,
V_SENSE = 100mV, overdrive
10
µs
NOTES:
7. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established
by characterization and are not production tested.
8. DEFINITION OF TERMS:
• V_SENSEA = V_SENSE @100mV
• V_SENSEB = V_SENSE @20mV
• V_OUTA = V_OUT@V_SENSEA=100mV
• V_OUTB = V_OUT@V_SENSEB=20mV
•
G
= GAIN
=
⎛
⎜
⎝
V^-----_S^---V-_E^---O-_N^----US----_ET^{----AA-----––-----VV----OS----}_EU^----_N^-T---_S^B----_E^----B^--_{⎠⎟⎞}
9.
V_OS
is
extrapolated
from
the
gain
measurement. V_OS
=
V_S
E
N
S
E
A
–
V_{-----O----U----T----}A_--
G
10.
%
Gain
Accuracy
=
G_A
=
⎛
⎜
⎝
-^G----^M-----^E----^A----^S----^U_G----^R-_E---^E-_X---^D-_P----_E-–---_C-^G---_T--^E--_E--^X-_D---^P----^E----^C----^T---^E----^D-- _{⎠⎟⎞}
× 100
11.
Output
Accuracy
%
V_OA
=
⎛
⎜
⎝
-^V----^O-----^U-----^T----^M-----^E---^A--_V--^S--_O--^U----_U^R----_T-^E---_E-^D---_X--–--_P--^V--_E---^O-_C----^U_T----_E-^T---_D-^E----^X---^P----^E----^C----^T----^E----^D--_{⎠⎟⎞}
×
100
where V_OUT = V_SENSE X GAIN and V_SENSE = 100mV
6
FN6973.2
May 27, 2010