LT1997I-3 ................................................–40 to 85°C
LT1997H-3 ............................................. –40 to 125°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range ......................–65 to 150°C
MSOP Lead Temperature (Soldering, 10 sec)........ 300°C
pin conFiguraTion
TOP VIEW
+INA
+INB
NC
+INC
SHDN
REF
1
3
4
5
6
7
15
V–
14 –INA
12 –INB
11 NC
10 –INC
9 V+
8
OUT
TOP VIEW
+INA 1
+INB 3
+INC
REF1
REF2
V–
5
6
7
8
16 –INA
14 –INB
12
11
10
9
–INC
V+
SHDN
OUT
MS PACKAGE
VARIATION: MS16 (12)
16-LEAD PLASTIC MSOP
T
JMAX
= 150°C,
θ
JA
= 130°C/W
DF PACKAGE
14(12)-LEAD (4mm
×
4mm) PLASTIC DFN
T
JMAX
= 150°C,
θ
JA
= 45°C/W ,
θ
JC
= 3°C/W
EXPOSED PAD (PIN 15) IS V
–
, MUST BE SOLDERED TO PCB
orDer inForMaTion
LEAD FREE FINISH
LT1997IDF-3#PBF
LT1997HDF-3#PBF
LT1997IMS-3#PBF
LT1997HMS-3#PBF
TAPE AND REEL
LT1997IDF-3#TRPBF
LT1997HDF-3#TRPBF
LT1997IMS-3#TRPBF
LT1997HMS-3#TRPBF
http://www.linear.com/product/LT1997-3#orderinfo
PART MARKING*
19973
19973
19973
19973
PACKAGE DESCRIPTION
14-Lead (4mm × 4mm) Plastic DFN
14-Lead (4mm × 4mm) Plastic DFN
16-Lead Plastic MSOP
16-Lead Plastic MSOP
SPECIFIED
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 125°C
–40°C to 85°C
–40°C to 125°C
*The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for parts specified with wider operating temperature ranges.
Parts ending with PBF are RoHS and WEEE compliant.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/.
2
19973f
For more information
www.linear.com/LT1997-3
LT1997-3
The
l
denotes the specifications which apply over the full operating
temperature range, –40°C < T
A
< 85°C for I-grade parts, –40°C < T
A
< 125°C for H-grade parts, otherwise specifications are at
T
A
= 25°C. Difference Amplifier Configuration, V
+
= 15V, V
–
= –15V, V
CM
= V
OUT
= V
REF
= V
REF1
= V
REF2
= 0V. V
CMOP
is the common
mode voltage of the internal op amp.
SYMBOL PARAMETER
∆G
Gain Error
CONDITIONS
V
OUT
= ±10V
G = 1
l
elecTrical characTerisTics
MIN
TYP
±0.001
±0.001
MAX
±0.006
±0.012
±0.015
±0.02
±0.03
±0.04
±1
±2
±3
±60
±200
±1.5
5
15
3
10
26
17.4
14.5
52
17.4
5.8
UNITS
%
%
%
%
%
%
ppm/°C
ppm
ppm
µV
µV
µV/°C
nA
nA
nA
nA
kΩ
kΩ
kΩ
kΩ
kΩ
kΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
V
G = 3
l
G = 9
l
±0.002
l
l
∆G/∆T
GNL
V
OS
∆V
OS
/∆T
I
B
I
OS
R
IN
Gain Drift vs Temperature (Note 6)
Gain Nonlinearity
Op Amp Offset Voltage (Note 9)
Op Amp Offset Voltage Drift (Note 6)
Op Amp Input Bias Current
Op Amp Input Offset Current
Input Impedance (Note 8)
V
OUT
= ±10V
V
OUT
= ±10V
V
–
< V
CMOP
< V
+
– 1.75V
±0.2
±1
±20
l
V
–
< V
CMOP
< V
+
– 1.75V
V
–
+ 0.25V < V
CMOP
< V
+
– 1.75V
l
l
±0.5
–5
–15
–3
–10
19
12.6
10.5
38
12.6
4.2
91
87
90
86
96
94
91
87
83
80
81
77
81
78
90
86
96
94
–30
–160
–15
–15
±2
±0.5
22.5
15
12.5
45
15
5
106
99
112
101
94
91
91
98
103
V
–
+ 0.25V < V
CMOP
< V
+
– 1.75V
l
CMRR
Common Mode Rejection Ratio,
MS16 Package
Common Mode
G = 1
G = 3
G = 9
Differential
G = 1
G = 3
G = 9
G = 1, V
CM
= –28V to +26.5V
G = 3, V
CM
= –15V to +17.6V
l
l
l
l
l
l
l
l
G = 9, V
CM
= –15V to +14.7V
l
CMRR
Common Mode Rejection Ratio,
DF14 Package
G = 1, V
CM
= –28V to +26.5V
l
G = 1, V
CM
= –90V to +90V, +INB = –INB = 0V,
V
S
= ±25V
G = 1, V
CM
= –120V to +120V, +INC = –INC = 0V,
V
S
= ±25V, T
A
= –40°C to 125°C
G = 1, V
CM
= –160V to +160V, +INC = –INC = 0V,
V
S
= ±25V, T
A
= –40°C to 85°C
G = 3, V
CM
= –15V to +17.6V
G = 9, V
CM
= –15V to +14.7V
l
l
l
l
l
V
CM
Input Voltage Range (Note 7)
+INA/–INA
+INA/–INA, +INC/–INC Connected to Ground
+INB/–INB
+INC/–INC
l
l
l
l
26.5
160
17.6
14.7
19973f
For more information
www.linear.com/LT1997-3
3
LT1997-3
The
l
denotes the specifications which apply over the full operating
temperature range, –40°C < T
A
< 85°C for I-grade parts, –40°C < T
A
< 125°C for H-grade parts, otherwise specifications are at
T
A
= 25°C. Difference Amplifier Configuration, V
+
= 15V, V
–
= –15V, V
CM
= V
OUT
= V
REF
= V
REF1
= V
REF2
= 0V. V
CMOP
is the common
mode voltage of the internal op amp.
SYMBOL PARAMETER
∆R/R
Reference Divider Matching Error
∆R R
REF1
– R
REF2
=
R
⎛
R
REF1
+R
REF2
⎞
⎜
⎟
⎝
⎠
2
Power Supply Rejection Ratio
Input Referred Noise Voltage Density
CONDITIONS
Available in MS16 Package Only
l
elecTrical characTerisTics
MIN
TYP
±0.001
MAX
±0.006
±0.012
UNITS
%
%
PSRR
e
ni
Input Referred Noise Voltage
V
OL
V
OH
I
SC
SR
BW
t
S
Output Voltage Swing Low (Referred
to V
–
)
Output Voltage Swing High (Referred
to V
+
)
Short-Circuit Output Current
Slew Rate
Small Signal –3dB Bandwidth
Settling Time
V
S
= ±1.65V to ±25V, V
CM
= V
OUT
= Mid-Supply
(Note 9)
f = 1kHz
G = 1
G = 3
G = 9
f = 0.1Hz to 10Hz
G = 1
G = 3
G = 9
No Load
I
SINK
= 5mA
No Load
I
SOURCE
= 5mA
50Ω to V
+
50Ω to V
–
∆V
OUT
= ±5V
G = 1
G = 3
G = 9
G = 1
0.1%, ∆V
OUT
= 10V
0.01%, ∆V
OUT
= 10V
G = 3
0.1%, ∆V
OUT
= 10V
0.01%, ∆V
OUT
= 10V
G = 9
0.1%, ∆V
OUT
= 10V
0.01%, ∆V
OUT
= 10V
l
114
124
50
30
22
1.4
1
0.8
100
280
100
530
28
30
0.75
1100
700
300
14.6
95
13.6
29
13.8
29
dB
nV/√Hz
nV/√Hz
nV/√Hz
µV
P-P
µV
P-P
µV
P-P
mV
mV
mV
mV
mA
mA
V/µs
kHz
kHz
kHz
µs
µs
µs
µs
µs
µs
V
V
µs
V
V
µA
µA
µA
µA
µA
l
l
l
l
l
l
l
150
500
180
900
10
10
0.45
V
S
t
ON
V
IL
V
IH
I
SHDN
I
S
Supply Voltage
l
3
3.3
16
50
50
–2.5
Turn-On Time
SHDN
Input Logic Low (Referred to V
+
)
SHDN
Input Logic High (Referred to V
+
)
SHDN
Pin Current
Supply Current
Active, V
SHDN
≥ V
+
– 1.2V
Active, V
SHDN
≥ V
+
– 1.2V
Shutdown, V
SHDN
≤ V
+
– 2.5V
Shutdown, V
SHDN
≤ V
+
– 2.5V
l
l
l
l
–1.2
–10
350
20
–15
400
600
25
70
l
4
19973f
For more information
www.linear.com/LT1997-3
LT1997-3
The
l
denotes the specifications which apply over the full operating
temperature range, –40°C < T
A
< 85°C for I-grade parts, –40°C < T
A
< 125°C for H-grade parts, otherwise specifications are at
据国外媒体报道，英特尔将处理器价格最高下调31%，但降价整体来说是有限的。 根据英特尔7月20日的新定价单来看，Core 2 Duo E8500(3.16GHz)价格降幅最高，从266美元下调至183美元，降幅达31%；Core 2 Duo E7200 (2.53GHz)次之，从133美元下调至113美元，降幅15%。 其他降价处理器还有四核Q6600(2.4GHz)，从224美...[详细]
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
