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參數資料
| 型號： | 1A175 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 隔離放大器 |
| 英文描述： | IA175 ULTR-LINEAR ISOLATION AMPLIFIER |
| 中文描述： | IA175超短絨被線性隔離放大器 |
| 文件頁數： | 1/1頁 |
| 文件大小： | 28K |
| 代理商： | 1A175 |
FEATURES
UL Component Recognized
Provision for External Synchronization
High Linearity: 0.0050% Peak, Typical
High Input/output Isolation: 5000VDC continuous,
3000VAC RMS
1000:1 Programmable Gain
Low Drift: ± 0.01% /
°
C Maximum
126dB Common-Mode Rejection
BLOCK DIAGRAM IA175
The Model IA175 Isolation Amplifier
features very high
linearity, input/output isolation, and common-mode rejection,
very low drift, and externally programmable gain. Its 0.005%
linearity assures compatibility with 12-bit data acquisition
systems, and its ability to operate at common-mode input
voltages up to 5000VDC enables operation with single
sources in high voltage systems and other hazardous
locations. Common-mode rejection is at least 120dB with
source imbalance of up to 5000 ohms. Input voltage noise is
1
μ
V, 10HZ to 1kHz, and current noise is 10pA for the same
range. The gain of the amplifier is programmable from 1V/V to
1000V/V by means of an externally connected resistance
value. The internal oscillator used to provide modulation and
demodulation for input isolation can be synchronized with
those of associated Model IA175 amplifiers by means of an
external trigger, to avoid imposition of beat-frequency
phenomena on the output signals. An independent ±14VDC,
± 5mA supply in the input section, with the same voltage
isolation as the amplifier input, is used to power an external
transducer, or preamplifier.
CHARACTERISTICS
(Typical, @ 25
°
C, Vs = +15 VDC unless otherwise noted.)
GAIN (Non-inverting)
Range
Formula
Deviation from Formula
Vs. Temperature (0 to + 70
°
C)
Vs. Temperature (0 to + 70
°
C)
Nonlinearity, ±5V Output
Nonlinearity, ±10V Output
INPUT VOLTAGE RATINGS
Linear Differential Range
Max. Safe Differential Input rms.
Continuous
Peak Pulse, 5ms Duration, 1 Pulse/Sec
Max. CMV, Inputs to Outputs/Power Common
Peak AC, 60HZ, 1 Minute
Peak DC Continuous
CMR, Inputs to Outputs, 60Hz
Balanced Source Impedance
5K
Source Imbalance
CMR, Inputs to Guard, 60Hz
5K
Source Imbalance
Max. Leakage Current, Inputs to Common
115VAC, 60Hz
INPUT IMPEDANCE
Differential
Overload
Common Mode
INPUT BIAS CURRENT
Initial, @ +25
°
C
Vs. Temperature (0 to + 70
°
C)
INPUT NOISE
Voltage
0.01Hz to 10Hz
10Hz to 1kHz
Current
0.01Hz to 10Hz
FREQUENCY RESPONSE
Small Signal, -3dB Gain = 100V/V
Full Power, 20V p-p Output
Slew Rate
OFFSET VOLTAGE, REFERRED TO INPUT
Initial, @ +25
°
C
Vs. Temperature (0 to + 70
°
C)
Gain = 1 V/V (
μ
V/
°
C max.)
Gain = 100V/V (
μ
V/
°
C max.)
At other Gains (
μ
V/
°
C max.)
Vs. Supply Voltage
RATED OUTPUT
Voltage, 50K
Load
Output Ripple, 20kHz
Output Impedance
Max. CMV, Output Common to Power Common
Peak AC or DC Continuous
ISOLATED POWER CIRCUIT
Voltage, ±15mA Load
Accuracy
Current
Regulation
No Load to Full Load
GAIN
Output Offset
Input Offset
POWER SUPPLY, SINGLE POLARITY
Voltage, for Rated Performance
Voltage, Operating
Current, Quiescent
Current, Full Load
External Sync. Frequency
1 to 1000V/V
1 + (30k
/Rg)
±
1%
±0.005%/
°
C
±0.01%/
°
C max.
±0.01% max
±0.02% max.
±10V min.
125V rms.
±600V
3,000V
±5,000V
126dB
120dB
80dB
8
μ
A max.
10
8
|| 3pF
27K
10
11
|| 20pF
±2nA
±0.01nA/
°
C
3
μ
V p-p
1
μ
V rms.
1pA p-p
1kHz
500HZ
30mV/
μ
S
±(1 + 5/G) mV
±35
±15
±(15 + 20/G)
±(1 + 20/G),
μ
V/V
±10V min.
10mV P-P
1.0k
±50V pk.
±14VDC
±5%
±15mA min.
+0, -2%
±0.005%
±100
μ
V
±5
μ
V
+15VDC, ±0.5V
+12 to + 18VDC
70mA
100mA
7 – 8KHz, 5VDC @
50% duty cycle
TEMPERATURE RANGE
Rated Performance
Storage
CASE DIMENSIONS
MATING SOCKET
NOMINAL WEIGHT
0
°
C to +70
°
C
-55
°
C to +85
°
C
3.5” x 2.5” x .62”
S132
1.3 ounces
CONNECTION NOTES:
1.
Gain adjustment resistor (Rg) is connected between GAIN and LO-IN
pins.
2.
If no output-offset adjustment is required, connect LO-OUT to
COMMON pin. Otherwise, consult factory.
IA175 ULTR-LINEAR
ISOLATION AMPLIFIER WITH
EXTERNAL SYNC CAPABILITY
Fully compatible with 12-Bit Acquisition Systems
HI IN
GAIN
SHIELD
GUARD
LO IN
-VsOUT
INNER
INPUT
OUSHIELD
FMODU-
LATOR
DRIVE
DC-DC
CONVERTER
DEMODU-
LATOR
DLATOR
DRIVE
OSCIL-
FILTER
HI OUT
LO OUT
+Vs
COM
OUTPUT SHIELD
SYNC
GAIN ADJ
SHIELD
GUARD
+Vs
LO IN
4 - 40 N/C
N.C.
(GAIN
ADJ
OPT)
LO OUT
COM
OUT
+15
6
5
4
3
2
1
12
11
10
8
7
9
SYNC
2.53 (64.2)
MAX.
3.53 (89.66)
MAX.
.63 (16.0)
MAX.
.2MIN.
.04 (1.02)
DIA.
MODEL IA175
BOTTOM VIEW
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