Datasheet

LT6109-1/LT6109-2
3
610912fa
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 12V, V
PULLUP
= V
+
, V
EN/RST
= 2.7V, R
IN
= 100Ω,
R
OUT
= R1 + R2 + R3 = 10k, gain = 100, R
C
= 25.5k, C
L
= C
LC
= 2pF, unless otherwise noted. (See Figure 3)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
+
Supply Voltage Range
l
2.7 60 V
I
S
Supply Current (Note 4) V
+
= 2.7V, R
IN
= 1k, V
SENSE
= 5mV 475 µA
V
+
= 60V, R
IN
= 1k, V
SENSE
= 5mV
l
600 700
1000
µA
µA
Supply Current in Shutdown V
+
= 2.7V, V
EN/RST
= 0V, R
IN
= 1k, V
SENSE
= 0.5V
l
3 5
7
µA
µA
V
+
= 60V, V
EN/RST
= 0V, R
IN
= 1k, V
SENSE
= 0.5V
l
7 11
13
µA
µA
EN/RST Pin Current V
EN/RST
= 0V, V
+
= 60V –200 nA
V
IH
EN/RST Pin Input High V
+
= 2.7V to 60V
l
1.9 V
V
IL
EN/RST Pin Input Low V
+
= 2.7V to 60V
l
0.8 V
Current Sense Amplifier
V
OS
Input Offset Voltage V
SENSE
= 5mV, LT6109A
V
SENSE
= 5mV, LT6109
V
SENSE
= 5mV, LT6109A
V
SENSE
= 5mV, LT6109
l
l
–125
–350
–250
–450
125
350
250
450
µV
µV
µV
µV
∆V
OS
/∆T
Input Offset Voltage Drift V
SENSE
= 5mV
l
±0.8 µV/°C
I
B
Input Bias Current
(SENSELO, SENSEHI)
V
+
= 2.7V to 60V
l
60 300
350
nA
nA
I
OS
Input Offset Current V
+
= 2.7V to 60V ±5 nA
I
OUTA
Output Current (Note 5)
l
1 mA
PSRR Power Supply Rejection Ratio
(Note 6)
V
+
= 2.7V to 60V
l
120
114
127 dB
dB
CMRR Common Mode Rejection Ratio V
+
= 36V, V
SENSE
= 5mV, V
ICM
= 2.7V to 36V 125 dB
V
+
= 60V, V
SENSE
= 5mV, V
ICM
= 27V to 60V
l
110
103
125 dB
dB
V
SENSE(MAX)
Full-Scale Input Sense Voltage
(Note 5)
R
IN
= 500Ω
l
500 mV
Gain Error (Note 7) V
+
= 2.7V to 12V
V
+
= 12V to 60V, V
SENSE
= 5mV to 100mV
l
–0.2
–0.08
0
%
%
SENSELO Voltage (Note 8) V
+
= 2.7V, V
SENSE
= 100mV, R
OUT
= 2k
V
+
= 60V, V
SENSE
= 100mV
l
l
2.5
27
V
V
Output Swing High (V
+
to V
OUTA
) V
+
= 2.7V, V
SENSE
= 27mV
l
0.2 V
V
+
= 12V, V
SENSE
= 120mV
l
0.5 V
BW Signal Bandwidth I
OUT
= 1mA
I
OUT
= 100µA
1
140
MHz
kHz
t
r
Input Step Response (to 50% of
Final Output Voltage)
V
+
= 2.7V, V
SENSE
= 24mV Step, Output Rising Edge
V
+
= 12V to 60V, V
SENSE
= 100mV Step, Output Rising Edge
500
500
ns
ns
t
SETTLE
Settling Time to 1% V
SENSE
= 10mV to 100mV, R
OUT
= 2k 2 µs