|
|
PDF MAX4075EUA Data sheet ( Hoja de datos )
| Número de pieza | MAX4075EUA | |
| Descripción | Micropower / SOT23 / Rail-to-Rail / Fixed-Gain / GainAmp/Open-Loop Op Amps | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MAX4075EUA (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
|
No Preview Available !
19-1526; Rev 1; 10/99
Micropower, SOT23, Rail-to-Rail,
Fixed-Gain, GainAmp/Open-Loop Op Amps
General Description
The MAX4074–MAX4078 GainAmp™ op amp family
combines low-cost Rail-to-Rail® op amps with precision
internal gain-setting resistors. Factory-trimmed on-chip
resistors decrease design size, cost, and layout, and
provide 0.1% gain accuracy. Fixed inverting gains from
-0.25V/V to -100V/V or noninverting gains from +1.25V/V
to +101V/V are available. These devices operate from a
single +2.5V to +5.5V supply and consume just 34µA.
GainAmp amplifiers are optimally compensated for each
gain version, achieving gain bandwidth (GBW) products
up to 4MHz (AV = +25V/V to +101V/V). High-voltage
fault protection withstands ±17V at either input without
damage or excessive current draw (MAX4074/MAX4075
only).
Two versions are available in this amplifier family. The
MAX4076/MAX4077/MAX4078 are single/dual/quad
open-loop, unity-gain-stable op amps, and the
MAX4074/MAX4075 are single/dual fixed-gain op
amps. The input common-mode voltage range of the
open-loop amplifiers extends from 150mV below the
negative supply to within 1.2V of the positive supply.
The GainAmp outputs can swing rail-to-rail and drive a
1kΩ load while maintaining excellent DC accuracy
(MAX4074/MAX4075 only). The amplifiers are stable for
capacitive loads up to 100pF.
For space-critical applications, the MAX4074/MAX4076
are available in space-saving SOT23-5 packages.
Applications
Portable Battery-Powered Equipment
Instruments, Terminals, and Bar-Code Readers
Keyless Entry
Photodiode Preamps
Smart-Card Readers
Infrared Receivers for Remote Controls
Low-Side Current-Sense Amplifiers
Gain Selector Guide appears at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
†Patent pending.
GainAmp is a trademark of Maxim Integrated Products.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Features
o Internal Gain-Setting Resistors in SOT23
Packages (MAX4074)
o 0.1% Gain Accuracy (RF/RG) (MAX4074/75)
o 54 Standard Gains Available (MAX4074/75)
o Open-Loop, Unity-Gain-Stable Op Amps
(MAX4076/77/78)
o Rail-to-Rail Outputs Drive 1kΩ Load (MAX4074/75)
o +2.5V to +5.5V Single Supply
o 34µA Supply Current (MAX4074/75)
o Up to 4MHz GBW Product
o Fault-Protected Inputs Withstand ±17V
(MAX4074/75)
o 200pA max Input Bias Current (MAX4076/77/78)
o Stable with Capacitive Loads up to 100pF
with No Isolation Resistor
Ordering Information
PART
TEMP. RANGE
PIN-
PACKAGE
TOP
MARK
MAX4074__EUK-T -40°C to +70°C 5 SOT23-5
MAX4074__ESA -40°C to +70°C 8 SO
**
—
Ordering Information continued at end of data sheet.
Note: Insert the desired gain code in the blank to complete the
part number (see the Gain Selector Guide).
**See the Gain Selector Guide for a list of preferred gains and
top marks.
Pin Configurations/
Functional Diagrams
TOP VIEW
MAX4074
OUT 1
5 VCC
RF
VEE 2
RG
IN+ 3
4 IN-
SOT23-5
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
1 page  
Micropower, SOT23, Rail-to-Rail,
Fixed-Gain, GainAmp/Open-Loop Op Amps
Typical Operating Characteristics
(VCC = +5.0V, RL = 100kΩ to VCC/2, TA = +25°C, unless otherwise noted.)
MAX4074/MAX4075
SMALL-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 100mVp-p
2
1
0
-1 AV = +10V/V
-2 AV = +21V/V
-3
-4
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
SMALL-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 100mVp-p
2
1
0
-1 AV = +25V/V
-2 AV = +50V/V
-3
-4
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
SMALL-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 100mVp-p
2
1
0
AV = +51V/V
-1
-2 AV = +101V/V
-3
-4
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
LARGE-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 1Vp-p
2
1
0 AV = +1.25V/V
-1
-2 AV = +2.25V/V
-3
-4
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
LARGE-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 1Vp-p
2
1
0
AV = +2.5V/V
-1
-2 AV = +4V/V
-3
-4
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
LARGE-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 1Vp-p
2
1
0
-1
-2 AV = +9V/V
-3
-4
AV = +5V/V
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
LARGE-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 1Vp-p
2
1
0
AV = +10V/V
-1
-2 AV = +21V/V
-3
-4
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
LARGE-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 1Vp-p
2
1
0
AV = +25V/V
-1
-2 AV = +50V/V
-3
-4
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
LARGE-SIGNAL GAIN vs. FREQUENCY
4
3 VOUT = 1Vp-p
2
1
0
-1 AV = +51V/V
-2 AV = +101V/V
-3
-4
-5
-6
1k
10k 100k
FREQUENCY (Hz)
1M
_______________________________________________________________________________________ 5
5 Page 
Micropower, SOT23, Rail-to-Rail,
Fixed-Gain, GainAmp/Open-Loop Op Amps
GainAmp Bandwidth
GainAmp fixed-gain amplifiers feature factory-trimmed
precision resistors to provide fixed inverting gains from
-0.25V/V to -100V/V or noninverting gains from +1.25V/V
to +101V/V. The op amp core is decompensated strate-
gically over the gain-set options to maximize band-
width. Open-loop decompensation increases GBW
product, ensuring that usable bandwidth is maintained
with increasing closed-loop gains. A GainAmp with a
fixed gain of AV = +25V/V has a -3dB bandwidth of
120kHz. By comparison, a unity-gain-stable op amp con-
figured for AV = +25V/V would yield a -3dB bandwidth
of only 8kHz. Decompensation is performed at five inter-
mediate gain sets, as shown in the Gain Selector
Guide.
High-Voltage (±17V)
Input Fault Protection
The MAX4074/MAX4075 family includes ±17V input
fault protection. For normal operation, see the input
voltage range specification in the Electrical Character-
istics. Overdriven inputs up to ±17V will not cause out-
put phase reversal. A back-to-back SCR structure at
the input pins allows either input to safely swing ±17V
relative to VEE (Figure 2). Additionally, the internal op
amp inputs are diode clamped to both supply rails for
the protection of sensitive input stage circuitry. Current
through the clamp diodes is limited by a 5kΩ resistor at
the noninverting input, and by RG at the inverting input.
An IN+ or IN- fault voltage as high as ±17V causes less
than 3.5mA to flow through the input pin, protecting
both the GainAmp and the signal source from damage.
Applications Information
GainAmp fixed-gain amplifiers offer a precision, fixed-
gain amplifier in a small package that can be used in a
variety of circuit board designs. GainAmp fixed-gain
amplifiers can be used in many op amp circuits that
use resistive negative feedback to set gain, and do not
require other connections to the op amp inverting input.
Both inverting and noninverting op amp configurations
can be implemented easily using a GainAmp.
GainAmp Input Voltage Range
The MAX4074/MAX4075 combine both an op amp and
gain-setting feedback resistors on the same IC. The
inverting input voltage range is different from the nonin-
verting input voltage range because the inverting input
pin is connected to the RG input series resistor. Just as
with a discrete design, take care not to saturate the
inputs/output of the core op amp to avoid signal distor-
tions or clipping.
RF
IN- RG
17V
SCR
VEE
IN+
VCC
5k
OUT
17V
SCR
VEE
VEE
MAX4074
MAX4075
Figure 2. Input Protection
NOTE: INPUT STAGE PROTECTION INCLUDES TWO 17V SCRs
AND TWO DIODES AT THE INPUT STAGE.
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet MAX4075EUA.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MAX4075EUA | Micropower / SOT23 / Rail-to-Rail / Fixed-Gain / GainAmp/Open-Loop Op Amps | Maxim Integrated |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |