The INA134 and INA2134 are differential line receiv-
ers consisting of high performance op amps with on-
chip precision resistors. They are fully specified for
high performance audio applications and have excel-
lent ac specifications, including low distortion
(0.0005% at 1kHz) and high slew rate (14V/µs), assur-
ing good dynamic response. In addition, wide output
voltage swing and high output drive capability allow
use in a wide variety of demanding applications. The
dual version features completely independent circuitry
for lowest crosstalk and freedom from interaction,
even when overdriven or overloaded.
The INA134 and INA2134 on-chip resistors are laser
trimmed for accurate gain and optimum
common-mode rejection. Furthermore, excellent TCR
tracking of the resistors maintains gain accuracy and
common-mode rejection over temperature. Operation
is guaranteed from
±4V
to
±18V
(8V to 36V total
supply).
The INA134 is available in 8-pin DIP and SO-8
surface-mount packages. The INA2134 comes in
14-pin DIP and SO-14 surface-mount packages. Both
are specified for operation over the extended industrial
temperature range, –40°C to +85°C.
–In
2
5
Sense
6
Output
+In
3
25kΩ
25kΩ
1
Ref
V+
11
25kΩ
25kΩ
INA134
4
V–
–In A
2
12
Sense A
A
13
Out A
+In A
3
25kΩ
25kΩ
14
Ref A
–In B
6
25kΩ
25kΩ
10
Sense B
B
9
Out B
+In B
5
25kΩ
25kΩ
8
Ref B
INA2134
4
V–
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
= 2kΩ, and Ref Pin connected to Ground, unless otherwise noted.
INA134PA, UA
INA2134PA, UA
PARAMETER
AUDIO PERFORMANCE
Total Harmonic Distortion + Noise, f = 1kHz
Noise Floor
(1)
Headroom
(1)
FREQUENCY RESPONSE
Small-Signal Bandwidth
Slew Rate
Settling Time: 0.1%
0.01%
Overload Recovery Time
Channel Separation (dual), f = 1kHz
OUTPUT NOISE VOLTAGE
(2)
f = 20Hz to 20kHz
f = 1kHz
OFFSET VOLTAGE
(3)
Input Offset Voltage
vs Temperature
vs Power Supply
INPUT
Common-Mode Voltage Range: Positive
Negative
Differential Voltage Range
Common-Mode Rejection
Impedance
(4)
Differential
Common-Mode
GAIN
Initial
Error
vs Temperature
Nonlinearity
OUTPUT
Voltage Output, Positive
Negative
Current Limit, Continuous to Common
Capacitive Load (Stable Operation)
POWER SUPPLY
Rated Voltage
Voltage Range
Quiescent Current (per Amplifier)
TEMPERATURE RANGE
Specification Range
Operation Range
Storage Range
Thermal Resistance,
θ
JA
8-Pin DIP
SO-8 Surface-Mount
14-Pin DIP
SO-14 Surface-Mount
V
CM
= 0V
Specified Temperature Range
V
S
=
±4V
to
±18V
V
O
= 0V
V
O
= 0V
V
CM
=
±31V,
R
S
= 0Ω
2(V+)–5
2(V–)+5
74
CONDITIONS
MIN
TYP
MAX
UNITS
V
IN
= 10Vrms
20kHz BW
THD+N < 1%
0.0005
–100
+23
3.1
14
2
3
3
117
7
52
±100
±2
±5
2(V+)–4
2(V–)+2
See Typical Curve
90
50
50
1
±0.02
±1
0.0001
(V+)–2
(V–)+2
(V+)–1.8
(V–)+1.6
±60
500
±18
±2.4
±1000
±60
%
dBu
dBu
MHz
V/µs
µs
µs
µs
dB
µVrms
nV/√HZ
µV
µV/°C
µV/V
V
V
dB
kΩ
kΩ
V/V
%
ppm/°C
%
V
V
mA
pF
V
V
mA
°C
°C
°C
°C/W
°C/W
°C/W
°C/W
10V Step, C
L
= 100pF
10V Step, C
L
= 100pF
50% Overdrive
V
O
= –16V to 16V
V
O
= –16V to 16V
±0.1
±10
±4
I
O
= 0
–40
–55
–55
±18
±2.9
85
125
125
100
150
80
100
NOTES: (1) dBu = 20log (Vrms /0.7746). (2) Includes effects of amplifier’s input current noise and thermal noise contribution of resistor network.
(3) Includes effects of amplifier’s input bias and offset currents. (4) 25kΩ resistors are ratio matched but have
±25%
absolute value.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
INA134/2134
2
PIN CONFIGURATIONS
Top View
8-Pin DIP/SO-8
Top View
14-Pin DIP/SO-14
Ref
1
8
NC
NC
1
14
Ref A
–In
2
7
V+
–In A
2
A
13
Out A
+In
3
6
Output
+In A
3
12
Sense A
V–
4
5
Sense
V–
4
11
V+
+In B
NC = No Connection
5
B
10
Sense B
–In B
6
9
Out B
ABSOLUTE MAXIMUM RATINGS
(1)
Supply Voltage, V+ to V– .................................................................... 40V
Input Voltage Range ..........................................................................
引言
本文讲述了能够帮助汽车照明行业实现最佳热管理的方法。我们就选择和测量 LED 热特性以及为特定应用选择最合适的 LED 进行了讨论。由于温度过热可能破坏 LED 系统的稳定性，我们还讨论了车前灯和车尾灯等形状复杂照明系统的热模拟，以及使用同步计算流体力学技术来设计更高品质的产品并以更快、更高效、更经济的方式开发汽车照明系统。
行业趋势
根据麦肯锡公司 (McKinsey & Co...[详细]
Microchip MCU
