![](http://datasheet.mmic.net.cn/390000/LT1319_datasheet_16816611/LT1319_3.png)
3
LT1319
SYMBOL
PARAMETER
Threshold Transimpedance
Threshold External Voltage
Shutdown Input High Voltage
Shutdown Input Low Voltage
Shutdown Input High Current
Shutdown Input Low Current
Supply Current
Supply Current in Shutdown
CONDITIONS
100
μ
A Into Pin 11 (Note 5)
100
μ
A Into Pin 11, V (Pin 11)
MIN
TYP
2
0.9
MAX
UNITS
k
V
TH
V
IH
V
IL
I
IH
I
IL
I
S
I
SHDN
0.8
2
1.2
V
V
V
0.8
–10
–130
18
800
V (Pin 14) = 2.4V
V (Pin 14) = 0.4V
V (Pin 14) = 2V
V (Pin 14) = 0.8V, V (Pin 6) = V (Pin 8) = 0V
–140
–400
10
300
–60
–260
14
500
μ
A
μ
A
mA
μ
A
ELECTRICAL C
T
A
= 25
°
C, V
15
= 5V, V
1
= V
12
= 0V, V
6
= V
8
= V
14
= 2V, unless otherwise specified.
HARA TERISTICS
0
°
C
≤
T
A
≤
70
°
C, V
15
= 5V, V
1
= V
12
= 0V, V
6
= V
8
= V
14
= 2V, unless otherwise specified.
SYMBOL
V
OS
PARAMETER
Preamp Input Offset Voltage
Preamp Output Offset Voltage
Preamp Loop Offset Voltage
High Gain Loop Offset Voltage
Low Gain Loop Offset Voltage
Preamp Transimpedance
Preamp Output Swing, Positive
Preamp Output Swing, Negative
Preamp Loop Rejection, Positive
Preamp Loop Rejection, Negative
Preamp Loop Output Current, Positive
Preamp Loop Output Current, Negative
Bias Voltage
Bypass Voltage
Filter Buffer Input Bias Current
Gain Stage Loop Rejection, Positive
Gain Stage Loop Rejection, Negative
Fast Comparator Output High Voltage
Slow Comparator Output High Voltage
Fast Comparator Output Low Voltage
Slow Comparator Output Low Voltage
Threshold External Voltage
Shutdown Input High Voltage
Shutdown Input Low Voltage
Shutdown Input High Current
Shutdown Input Low Current
Supply Current
Supply Current in Shutdown
CONDITIONS
V (Pin 2) – V (Pin 5)
V (Pin 4) – V (Pin 5)
V (Pin 3) – V (Pin 5)
V (Pin 9) – V (Pin 5)
V (Pin 7) – V (Pin 5)
±
10
μ
A Into Pin 2, Measure
V (Pin 4)
100
μ
A Out of Pin 2, Measure
V (Pin 4)
100
μ
A Into Pin 2, Measure
V (Pin 4)
50
μ
A Into Pin 2, Measure
V (Pin 4)
50
μ
A Out of Pin 2, Measure
V (Pin 4)
100
μ
A Out of Pin 2, Measure I (Pin 3), (Note 1)
100
μ
A Into Pin 2, Measure I (Pin 3), (Note 1)
V (Pin 5)
V (Pin 16)
I (Pin 6), I (Pin 8)
V = 50mV (Pin 6, Pin 8), Measure
V (Pin 7, Pin 9)
V = –50mV (Pin 6, Pin 8), Measure
V (Pin 7, Pin 9)
V (Pin 9) = –200mV, 1mA Out of Pin 10 (Note 4)
V (Pin 7) = –200mV, 0.1mA Out of Pin 13 (Note 4)
V (Pin 9) = 200mV, 800
μ
A Into Pin 10
V (Pin 7) = 200mV, 800
μ
A Into Pin 13
100
μ
A Into Pin 11, V (Pin 11)
MIN
TYP
4
10
150
800
800
15
0.4
–0.4
–1
1
–100
100
1.9
4.9
0.5
0.45
–0.45
3.5
3.9
0.35
0.39
0.9
MAX
17
27
350
1200
1200
18.5
0.6
–0.2
3.5
3.5
–40
160
2.3
4.97
1.6
0.6
–0.3
UNITS
mV
mV
mV
mV
mV
30
400
400
8.5
0.2
–0.6
–3.5
–3.5
–160
40
1.5
4.7
0.05
0.3
–0.6
2.4
2.4
A
VP
k
V
V
mV
mV
μ
A
μ
A
V
BIAS
V
BYPASS
I
B
V
V
μ
A
V
V
V
V
V
V
V
V
V
μ
A
μ
A
mA
μ
A
V
OH
V
OL
0.5
0.5
1.3
V
TH
V
IH
V
IL
I
IH
IL
I
S
I
SHDN
0.7
2
0.8
0
–80
20
900
V (Pin 14) = 2.4V
V (Pin 14) = 0.4V
V (Pin 14) = 2V
V (Pin 14) = 0.8V, V (Pin 6) = V (Pin 8) = 0V
–160
–450
9
200
–60
–260
14
500
Note 1:
Measure V (Pin 3) without input current for Pin 2. Force Pin 3 to
this measured voltage (which disables the preamp loop). Measure the
current into and out of Pin 3 when Pin 2 is driven.
Note 2:
The gain is the differential voltage at the comparator inputs divided
by the differential voltage between the filter buffer output and V
BIAS
. This
parameter is not tested.
Note 3:
Hysteresis is the difference in comparator trip point measured
when the output is high and when the output is low. This parameter is
not tested.
Note 4:
Measure V (Pin 7) and V (Pin 9). Force these voltages to 200mV
below their nominal value to switch the comparators high.
Note 5:
The current into Pin 11 is multiplied by 4 and then applied to a
500
resistor on the positive comparator inputs. The threshold is
I (Pin 11) 4 500
.