AMP04ESZ Analog Devices Inc, AMP04ESZ Datasheet - Page 9
![IC AMP INST PREC 30MA LP 8SOIC](/photos/5/66/56684/505-8-soic_sml.jpg)
AMP04ESZ
Manufacturer Part Number
AMP04ESZ
Description
IC AMP INST PREC 30MA LP 8SOIC
Manufacturer
Analog Devices Inc
Type
Instrumentation Ampr
Datasheet
1.AMP04FSZ.pdf
(16 pages)
Specifications of AMP04ESZ
Amplifier Type
Instrumentation
Number Of Circuits
1
-3db Bandwidth
700kHz
Current - Input Bias
22nA
Voltage - Input Offset
30µV
Current - Supply
750µA
Current - Output / Channel
30mA
Voltage - Supply, Single/dual (±)
5 V ~ 30 V, ±2.5 V ~ 15 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Number Of Channels
1
Number Of Elements
2
Power Supply Requirement
Single/Dual
Common Mode Rejection Ratio
90dB
Voltage Gain Db
60dB
Input Resistance
4000@5VMohm
Input Offset Voltage
0.15@5VmV
Input Bias Current
0.03@5VnA
Single Supply Voltage (typ)
9/12/15/18/24/28V
Dual Supply Voltage (typ)
±3/±5/±9/±12V
Power Supply Rejection Ratio
105dB
Rail/rail I/o Type
No
Single Supply Voltage (min)
5V
Single Supply Voltage (max)
30V
Dual Supply Voltage (min)
±2.5V
Dual Supply Voltage (max)
±15V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC
No. Of Amplifiers
2
Bandwidth
700kHz
Amplifier Output
Single Ended
Cmrr
85dB
Supply Voltage Range
± 2.5V To ± 15V
Supply Current
750µA
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Output Type
-
Slew Rate
-
Gain Bandwidth Product
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AMP04ESZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AMP04ESZ-R7
Manufacturer:
MP
Quantity:
213
Power Supply Considerations
In dual supply applications (for example ± 15 V) if the input is
connected to a low resistance source less than 100 Ω, a large
current may flow in the input leads if the positive supply is
applied before the negative supply during power-up. A similar
condition may also result upon a loss of the negative supply. If
these conditions could be present in you system, it is recom-
mended that a series resistor up to 1 kΩ be added to the input
leads to limit the input current.
This condition can not occur in a single supply environment
as losing the negative supply effectively removes any current
return path.
Offset Nulling in Dual Supply
Offset may be nulled by feeding a correcting voltage at the V
pin (Pin 5). However, it is important that the pin be driven with
a low impedance source. Any measurable resistance will degrade
the amplifier’s common-mode rejection performance as well as
its gain accuracy. An op amp may be used to buffer the offset
null circuit as in Figure 8.
INPUT
–
+
–5V
100
90
10
0%
OP90 FOR LOW POWER
OP113 FOR LOW DRIFT
1
2
3
4
V–
1mV
AMP04
R
G
REF
V+
8
7
6
5
+5V
–5V
5V
OUTPUT
2s
RANGE
ADJ
5mV
+5V
–5V
50k
100
50k
REF
Offset Nulling in Single Supply
Nulling the offset in single supply systems is difficult because
the adjustment is made to try to attain zero volts. At zero volts
out, the output is in saturation (to the negative rail) and the
output voltage is indistinguishable from the normal offset error.
Consequently the offset nulling circuit in Figure 9 must be used
with caution.
First, the potentiometer should be adjusted to cause the output
to swing in the positive direction; then adjust it in the reverse
direction, causing the output to swing toward ground, until
the output just stops changing. At that point the output is at
the saturation limit.
Alternative Nulling Method
An alternative null correction technique is to inject an offset
current into the summing node of the output amplifier as in
Figure 10. This method does not require an external op amp.
However, the drawback is that the amplifier will move off its
null as the input common-mode voltage changes. It is a less
desirable nulling circuit than the previous method.
IN(–)
IN(+)
INPUT
INPUT BUFFERS
REF
1
2
3
4
100k
11k
AMP04
V+
R
R
G
GAIN
11k
8
7
6
5
V–
OP113
100k
5V
OUTPUT
100
50k
AMP04
V
OUT
5V