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PDF ADA4505-4 Data sheet ( Hoja de datos )
| Número de pieza | ADA4505-4 | |
| Descripción | (ADA4505-2/-4) Zero Input Crossover Distortion Amplifiers | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ADA4505-4 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
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FEATURES
PSRR: 100 dB minimum
CMRR: 105 dB typical
Very low supply current: 10 μA per amplifier maximum
1.8 V to 5 V single-supply or ±0.9 V to ±2.5 V dual-supply
operation
Rail-to-rail input and output
3 mV offset voltage maximum
Very low input bias current: 0.5 pA typical
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APPLICATIONS
Pressure and position sensors
Remote security
Medical monitors
Battery-powered consumer equipment
Hazard detectors
10 μA, Rail-to-Rail I/O, Zero Input
Crossover Distortion Amplifiers
ADA4505-2/ADA4505-4
PIN CONFIGURATIONS
OUT A 1
–IN A 2
+IN A 3
V– 4
ADA4505-2
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 1. 8-Lead MSOP (RM-8)
BALL A1
CORNER
OUT B V+ OUT A
A1 A2 A3
–IN B
B1
–IN A
B3
+IN B V– +IN A
C1 C2 C3
ADA4505-2
TOP VIEW
(BALL SIDE DOWN)
Figure 2. 8-Ball WLCSP (CB-8-2)
OUT A 1
14 OUT D
–IN A 2
13 –IN D
+IN A 3 ADA4505-4 12 +IN D
V+ 4
TOP VIEW
(Not to Scale)
11 V–
+IN B 5
10 +IN C
–IN B 6
9 –IN C
OUT B 7
8 OUT C
Figure 3. 14-Lead TSSOP (RU-14)
GENERAL DESCRIPTION
The ADA4505-2/ADA4505-4 are dual and quad micropower
amplifiers featuring rail-to-rail input and output swings while
operating from a single 1.8 V to 5 V power supply or from dual
±0.9 V to ±2.5 V power supplies.
Employing a new circuit technology, these low cost amplifiers
offer zero input crossover distortion (excellent PSRR and CMRR
performance) and very low bias current, while operating with a
supply current of less than 10 μA per amplifier.
This combination of features makes the ADA4505-2/ADA4505-4
amplifiers ideal choices for battery-powered applications because
they minimize errors due to power supply voltage variations
over the lifetime of the battery, and maintain high CMRR even
for a rail-to-rail op amp.
Remote battery-powered sensors, handheld instrumentation
and consumer equipment, hazard detectors (for example, smoke,
fire, and gas), and patient monitors can benefit from the features
of the ADA4505-2/ADA4505-4 amplifiers.
The ADA4505-2/ADA4505-4 are specified for both the industrial
temperature range (−40°C to +85°C) and the extended industrial
temperature range (−40°C to +125°C). The ADA4505-2 dual
amplifier is available in standard 8-lead MSOP and 8-ball WLCSP
packages. The ADA4505-4 quad amplifier is available in a 14-lead
TSSOP package.
The ADA4505-2/ADA4505-4 are members of a growing series
of zero crossover op amps offered by Analog Devices, Inc.,
including the AD8506/AD8508, which also operate from a
single 1.8 V to 5 V power supply or from dual ±0.9 V to ±2.5 V
power supplies.
Rev. A
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2008 Analog Devices, Inc. All rights reserved.
1 page  
ABSOLUTE MAXIMUM RATINGS
Table 3.
Parameter
Supply Voltage
Input Voltage
Input Current1
Differential Input Voltage2
Output Short-Circuit Duration to GND
Storage Temperature Range
Operating Temperature Range
Junction Temperature Range
Lead Temperature (Soldering, 60 sec)
Rating
5.5 V
±VSY ± 0.1 V
±10 mA
±VSY
Indefinite
−65°C to +150°C
−40°C to +125°C
−65°C to +150°C
300°C
www.D1aIntpauSthpeinesth4aUv.eccolammp diodes to the supply pins. Input current should be
limited to 10 mA or less whenever the input signal exceeds the power
supply rail by 0.5 V.
2 Differential input voltage is limited to 5 V or the supply voltage, whichever
is less.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ADA4505-2/ADA4505-4
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages. This
was measured using a standard 2-layer board, unless otherwise
specified.
Table 4. Thermal Resistance
Package Type
θJA
θJB1
θJC
Unit
8-Lead MSOP (RM-8)
206 N/A 44
°C/W
8-Ball WLCSP (CB-8-2)
2-Layer PCB (1SOP)
178 42
N/A °C/W
4-Layer PCB (2SOP)
82 23 N/A °C/W
14-Lead TSSOP (RU-14)
180 N/A 35
°C/W
1 Junction-to-board thermal resistance.
ESD CAUTION
Rev. A | Page 5 of 20
5 Page 
TA = 25°C, unless otherwise noted.
80 VSY = 1.8V
70
VIN = 10mV p-p
RL = 100kΩ
60
50
40
30
20
OS+
OS–
10
0
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100
CAPACITANCE (pF)
1000
Figure 34. Small Signal Overshoot vs. Load Capacitance
T
LOAD = 100kΩ || 100pF
VSY = 1.8V
1.490V p-p
ADA4505-2/ADA4505-4
80 VSY = 5V
70
VIN = 10mV p-p
RL = 100kΩ
60
50
40
30
20
OS+
10 OS–
0
10 100 1000
CAPACITANCE (pF)
Figure 37. Small Signal Overshoot vs. Load Capacitance
T
LOAD = 100kΩ || 100pF
VSY = 5V
3.959V p-p
TIME (200µs/DIV)
Figure 35. Large Signal Transient Response
T LOAD = 100kΩ || 100pF
VSY = 1.8V
TIME (200µs/DIV)
Figure 38. Large Signal Transient Response
T LOAD = 100kΩ || 100pF
VSY = 5V
TIME (200µs/DIV)
Figure 36. Small Signal Transient Response
TIME (200µs/DIV)
Figure 39. Small Signal Transient Response
Rev. A | Page 11 of 20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet ADA4505-4.PDF ] | |
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