AD8667 [ADI]
16V, 250 A Low Power, Low Noise Dual Precision CMOS Rail-to-Rail Output Operational Amplifiers; 16V ， 250低功耗，低噪声双精密CMOS轨到轨输出运算放大器
| 型号： | AD8667 |
| 厂家： | 
ADI |
| 描述： | 16V, 250 A Low Power, Low Noise Dual Precision CMOS Rail-to-Rail Output Operational Amplifiers |
| 文件： | 总4页 (文件大小：178K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
16V, 250 A Low Power, Low Noise
Dual Precision CMOS Rail-to-Rail Output
Operational Amplifiers
Preliminary Technical Data
AD8667
FEATURES
Lower Power at High voltage: 250 μA typ
Low Offset Voltage: 100 μV
Voltage Noise: 20 nV/√Hz
Low Input Bias Currents 1pA Max
04
PIN CONFIGURATIONS
8-Lead MSOP
(RM-8)
Single-Supply Operation: 5 to 16 Volts
Dual-Supply Operation: +/- 2.5 to +/-8 Volts
Output drive: 10mA
AD8667
Unity Gain Stable
APPLICATIONS
Medical Equipment
Physiological Measurement
Precision References
Buffer / Level Shifting
Portable Operated Systems
High density Power Budget Systems
Multi-pole Filters
8-Lead SO
(R-8)
AD8667
Sensors
Photodiode amplification
ADC driver
04
GENERAL DESCRIPTION
The AD8667 is a dual rail-to-rail output single supply and dual
supply amplifiers that use Analog Devices’ patented
DigiTrim® trimming technique to achieve low offset voltage,
300μV over the common mode range. The AD8667 family
features an extended operating range with supply voltages up
to 16 V for low power operation with ISY of < 325 μΑ over the
extended industrial temperature. These devices are designed
for low noise at higher voltages, 20 nV/√Hz at 10 kHz and 23
nV/√Hz at 1 kHz. They also feature low input bias currents of
1pA and 10mA output drive.
The combination of low supply currents, low offsets, very low
input bias currents, and wide supply range make these
amplifiers useful in a wide variety of low power applications.
Systems utilizing DC to low frequency measurements, or high
impedance sensors, such as photo-diodes benefit from the
combination of low input bias current, low noise, low offset
and drive current. The wide operating voltage range matches
today’s high performance ADCs and DACs. Medical
monitoring equipment can take advantage of the low voltage
noise, high input impedance, low voltage and current noise,.
The AD8667 is specified over the extended industrial (-40° to
+125°C) temperature range.
REV. PrA
08/31/2006
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its use,
nor for any infringements of patents or other rights of third parties that may
result from its use. No license is granted by implication or otherwise under any
patent or patent rights of Analog Devices. Trademarks and registered
trademarks are the property of their respective companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
www.analog.com
© 2006 Analog Devices, Inc. All rights reserved.
AD8667
Preliminary Technical Data
ELECTRICAL CHARACTERISTICS
(VS=+5.0V, VCM = VS/2, TA=+25°C unless otherwise noted)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
INPUT CHARACTERISTICS
Offset Voltage
V
VSY = 8V, VCM = 3V
VCM = - 0.1V to 3.0V
100
μV
OS
30
300
650
μV
μV
-40°< T < +85°C
A
-40°< T < +125°C
750
μV
A
Input Bias Current
Input Offset Current
I
I
0.3
0.2
1
pA
pA
pA
B
-40°< T < +85°C
50
A
-40°< T < +125°C
300
A
pA
pA
pA
OS
-40°< T < +85°C
20
75
3
A
-40°< T < +125°C
A
Input Voltage Range
Common-Mode Rejection Ratio
IVR
CMRR
-0.1
80
V
dB
V
= -0.1V to 3.0V
95
85
4
CM
= 2 kΩ V = 0.5V to 4.5V
Large Signal Voltage Gain
Offset Voltage Drift
A
R
70
V/mV
O
VO
L
ΔV /ΔT
OS
μV/°C
OUTPUT CHARACTERISTICS
Output Voltage High
V
V
I
= 1mA
L
4.8
V
V
OH
-40°C < T < +125°C
4.6
A
Output Voltage Low
I
= 1mA
L
200
mV
mV
mA
Ω
OL
-40°C < T < +125°C
250
A
Short Circuit Current
I
±
5
100
SC
Closed Loop Output Impedance
Z
f=100kHz, A = 1
OUT
V
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
V
V
= 5 V to 16 V
= 0V
80
95
dB
μA
μA
S
Supply Current/Amplifier
I
250
325
SY
O
-40°< T < +125°C
A
DYNAMIC PERFORMANCE
Slew Rate
SR
R
=2 kΩ
0.2
V/μs
μs
L
Settling Time
t
To 0.1%, 0 V to 1V step
s
Gain Bandwidth Product
Phase Margin
GBP
Øo
550
60
kHz
degrees
NOISE PERFORMANCE
Peak-to-Peak Noise
Voltage Noise Density
en p-p
f=0.1Hz to 10 Hz
f=10kHz
3.5
20
23
μV p-p
nV/√Hz
e
n
n
Voltage Noise Density
Current Noise Density
e
nV/√Hz
pA/√Hz
f=1kHz
i
n
f=1kHz
Rev. PrA | Page 2 of 4
Preliminary Technical Data
AD8667
ELECTRICAL CHARACTERISTICS
(VS=16V, VCM = VS/2, TA=+25°C unless otherwise noted)
Parameter
Symbol
Conditions
Min
Typ
Max
Units
INPUT CHARACTERISTICS
Offset Voltage
V
VSY = 8V, VCM = 3V
100
μV
OS
VCM = -0.1V to +14.0V
30
300
650
μV
μV
-40°< T < +85°C
A
-40°< T < +125°C
750
μV
A
Input Bias Current
Input Offset Current
I
I
0.3
0.2
1
pA
pA
pA
B
-40°< T < +85°C
50
A
-40°< T < +125°C
300
A
pA
pA
pA
OS
-40°< T < +85°C
20
75
14
A
-40°< T < +125°C
A
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
IVR
CMRR
A
-0.1
80
70
V
dB
V/mV
VCM = -0.1V to +14.0V
95
85
R =2 kΩ V = 0.5V to+15.5V
O
VO
L
Offset Voltage Drift
ΔV /ΔT
OS
3
μV/°C
OUTPUT CHARACTERISTICS
Output Voltage High
V
V
I
I
= 1mA
15.8
15
15.9
15.2
V
V
V
OH
OL
L
= 10mA
L
-40°C < T < +125°C
14.7
A
Output Voltage Low
I
I
= 1mA
51
80
mV
mV
mV
mA
Ω
L
= 10mA
550
900
L
-40°C < T < +125°C
A
Short Circuit Current
I
±
10
100
SC
Closed Loop Output Impedance
Z
f=100 kHz, A = 1
OUT
V
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
V
V
= 5V to 16V
= 0V
80
95
dB
μA
μA
S
Supply Current/Amplifier
I
250
325
SY
O
-40°< T < +125°C
A
DYNAMIC PERFORMANCE
Slew Rate
SR
R
=2 kΩ
0.3
V/μs
μs
L
Settling Time
t
To 0.1%, 0 V to 1V step
s
Gain Bandwidth Product
Phase Margin
GBP
Øo
550
60
kHz
degrees
NOISE PERFORMANCE
Peak-to-Peak Noise
Voltage Noise Density
en p-p
f=0.1Hz to 10 Hz
f=1kHz
3.5
23
20
μV p-p
nV/√Hz
e
n
n
Voltage Noise Density
Current Noise Density
e
nV/√Hz
pA/√Hz
f=10kHz
f=1kHz
in
Rev. PrA | Page 3 of 4
AD8667
Preliminary Technical Data
Notes
Rev. PrA | Page 4 of 4
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