ISL28127_12 Datasheet, PDF (36/44 Pages) Intersil Corporation – Providing high-performance solutions for every link in the signal chain

► Low Input Bias Current
Precision Low Input Bias
Current Operational
Amplifier
In an ideal amplifier, there should be no current flow into
the input terminals of an op amp. In general, there are
always two input bias currents, I_B+ and I_B-.
• I_B can vary from few fA to many μA, depending on the input
device.
• Some input structures have well-matched I_B.
• FET op amp’s I_B doubles with every 10°C rise in temperature.
• Some structures have I_B which may flow in either direction.
-- Usually CMOS/JFET amplifiers.
• Intersil’s new JFET amplifier (ISL28210) employs bias cancelling
structure to offer low bias current over temperatures.
• Low I_B amplifiers are ideal for photodiode, high impedance type
applications.
Typical Application
ISL28210 is ideal for Flow Sensors and other
high impedance applications.
Photodiode
-
ISL28210
+
Transimpedance Amp
ISL28210 has Very High
560GΩ Input Impedance
Part Number
Single
Dual
Quad
ISL28110 ISL28210
ISL28113* ISL28213* ISL28413*
ISL28114* ISL28214* ISL28414*
ISL28158 ISL28258
ISL28288 ISL28488
ISL28148 ISL28248
ISL28194*
ISL28133* ISL28233 ISL28433
ISL28130 ISL28230 ISL28430
ISL28107 ISL28207 ISL28407
ISL28134
Supply
Voltage (V)
Min Max
9 40
1.8 5.5
1.8 5.5
2.4 5.5
2.4 5.5
2.4 5.5
1.8 5.5
1.65 5.5
1.65 5.5
4.5 40
2.25 6
Rail-To-Rail
In Out
No No
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
No No
Yes Yes
Vos Max
@ 25°C
mV
0.300
5
5
0.3
1.5
1.8
2
0.006
0.04
0.075
0.0025
TCVos
Typ
µV/°C
1
2
2
0.3
0.9
0.03
1.5
0.05
0.02
0.1
0.0005
Ib Max @
25°C
nA
0.002
0.02
0.02
0.03
0.03
0.03
0.08
0.18
0.25
0.3
0.3
CMRR min
@ 25°C
dB
88
72
72
75
80
75
70
118
110
115
120
PSRR min
@ 25°C
dB
102
71
71
80
85
80
70
110
105
115
120
Is Max @
25°C
mA
2.9
0.13
0.36
0.043
0.156
1.25
0.00045
0.025
0.025
0.29
0.900
GBW
MHz
12.5
2
5
0.2
0.3
4.5
0.0035
0.4
0.4
1
3.5
Slew
Rate
V/µs
23
1
2.5
0.1
0.14
4
0.0012
0.2
0.2
0.32
1.5
Noise
0.1 to 10Hz
µVpp
0.6
14
12
1.4
3
2
10
1
1.1
0.34
0.25
Voltage Noise
@ 1kHz
nV/√Hz
6
55
40
64
48
28
265
65
65
13
10
* Some specifications will differ, please check data sheet for actual parameters and/or conditions
► Current Sense Amplifier
Evalboard
Available!
Current Sense Amplifiers: ISL28005, ISL28006
28V Micro-power, Precision
High Side and Low Side
Current Sense Amplifiers
Only 50µA Current Consumption
VOLTAGE
28V
1% Gain Accuracy Max -40°C to +125°C
ISL28006
G = 20, 50, 100
Key Features
• Supply Independent of Input
-- 2.7V to 28V Supply
-- 0V to 28V V_CM
• Max. 250µV Input V_OS
• Gain Accuracy Max:
-- 0.5% 25°C
• Four Gain Options
-- 20V/V, 50V/V, 100V/V, & ADJ
• -40°C to +125°C Operation
Applications
• Low Ohmic Shunt Sense
• Battery Management
• High-precision Voltage and Current
Measurement
LOW
OHMIC
RAIL
TO
RAIL
0V
V_OUT
G
RAIL
TO
RAIL
• Power Management in Communications,
LOAD
Networking, Industrial
Optional
• Computing and Display Power
Management
250µV Max Offset Voltage
• Alternative Energy (wind, power, solar)
Gain Resistor Option for Adjustable
Gain (ISL28006 only)
Part
Number
ISL28005
Supply
Voltage
Range
V
2.7 to 28
Input
Common
Mode Range
V
0 to 28
Vos Max
@ 25°C
µV
500
Vos Max CMRR min
Temp Temp
µV
dB
500
105
PSRR min
Temp
dB
90
ISL28006 2.7 to 28 0 to 28
250
300
105
90
Gain Range
V/V
20, 50, 100
20, 50, 100,
Adj (20-100)
Gain Accuracy Gain Accuracy Is Max @
@ 25°C
Temp
25°C
%
%
µA
2
3
59
0.7
1
62
Is Max
Temp
µA
59
62
GBW
kHz
180
180
Temp
Range
°C Package
-40 to 125 SOT23
-40 to 125 SOT23
36
Intersil Signal Path Products  2012  www.intersil.com