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PDF MAX4199ESA Data sheet ( Hoja de datos )
| Número de pieza | MAX4199ESA | |
| Descripción | Micropower / Single-Supply / Rail-to-Rail Precision Differential Amplifiers | |
| Fabricantes | Maxim Integrated | |
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19-1445; Rev 0; 4/99
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
General Description
The MAX4198/MAX4199 low-power, Rail-to-Rail® differ-
ential amplifiers are ideal for single-supply applications
that benefit from a low 0.01% gain error. The MAX4198
is factory trimmed to a fixed gain of +1V/V, and the
MAX4199 is trimmed to a fixed gain of +10V/V. Capable
of operating from a single +2.7V to +7.5V supply or
from dual ±1.35V to ±3.75V supplies, they consume
only 42µA while achieving -3dB bandwidths of 175kHz
(MAX4198) and 45kHz (MAX4199). These amplifiers
feature a shutdown mode that reduces the supply cur-
rent to 6.5µA.
The MAX4198/MAX4199 can drive 5kΩ loads to within
100mV from each rail. The standard differential amplifi-
er configurations provide common-mode rejection of
90dB for the MAX4198 and 110dB for the MAX4199.
The input common-mode voltage range for the
MAX4198 extends 100mV Beyond-the-Rails™.
The MAX4198/MAX4199 are offered in a space-saving
8-pin µMAX package. For complete micropower, rail-to-
rail instrumentation amplifiers, see the MAX4194–
MAX4197 data sheet.
Applications
Instrumentation Amplifier Building Block
Differential Voltage Amplifiers
Data-Acquisition Systems
Portable/Battery-Powered Equipment
Transducer Interface
Current-Sense Amplifiers
Functional Diagram
IN- 2
IN+ 3
MAX4198
MAX4199
25k
25k
( ) ARE FOR MAX4199 ONLY.
7 VCC
25k (250k)
25k (250k)
4 VEE
5 FB
6 OUT
1 REF
Features
o Low 0.01% Gain Error
o High Common-Mode Rejection: 110dB (MAX4199)
o 10µV Input Offset Voltage (MAX4199)
30µV Input Offset Voltage (MAX4198)
o +2.7V to +7.5V Single-Supply Operation
o 42µA Supply Current
o 175kHz (MAX4198) and 45kHz (MAX4199)
-3dB Bandwidth
o 6.5µA Shutdown Current
o Rail-to-Rail Outputs Drive 5kΩ Loads
o Input Voltage Range Extends 100mV Beyond-the-
Rails (MAX4198)
o Available in Space-Saving 8-Pin µMAX Package
Ordering Information
PART
TEMP. RANGE
MAX4198EUA
MAX4198ESA
MAX4199EUA
MAX4199ESA
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
8 µMAX
8 SO
8 µMAX
8 SO
GAIN
(V/V)
1
1
10
10
Pin Configuration
TOP VIEW
REF 1
IN- 2
IN+ 3
VEE 4
MAX4198
MAX4199
8 SHDN
7 VCC
6 OUT
5 FB
µMAX/SO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Beyond-the-Rails is a trademark of Maxim Integrated Products.
________________________________________________________________ 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 408-737-7600 ext. 3468.
1 page  
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
ELECTRICAL CHARACTERISTICS—MAX4199 (+5V Supply) (continued)
(VCC = +5V, VEE = 0V, RL = 25kΩ tied to VCC / 2, VREF = VCC / 2, V SHDN = VCC - 1.5V, typical values are at TA = +25°C,
TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Input Logic Voltage High
(Note 3)
VIH
VCC - 1.5
V
Input Logic Voltage Low
(Note 3)
VIL
VCC - 2.5 V
SHDN Input Bias Current
VSHDN = VCC - 1.5V or VSHDN = VEE
-0.1
0.1 µA
Enable/Disable Settling Time
Power-Up Delay
tON/OFF
VSHDN = VCC - 2.5V to VCC - 1.5V,
VOUT = 3.5V, settled to within 0.1%
VOUT = 3.5V, settled to within 0.1%
35 µs
800 µs
ELECTRICAL CHARACTERISTICS—MAX4199 (+3V Supply)
(VCC = +3V, VEE = 0V, RL = 25kΩ tied to VCC / 2, VREF = VCC / 2, V SHDN = VCC - 1.5V, values are at TA = +25°C,
TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER
Input Offset Voltage
Input Offset Voltage Drift
Input Voltage Range
DC Common-Mode Rejection
SYMBOL
VOS
TCO
VIN
CMRDC
CONDITIONS
TA = +25°C,
VCM = VCC / 2
MAX4199ESA
MAX4199EUA
TA = TMIN to TMAX, MAX4199ESA
VCM = VCC / 2
MAX4199EUA
MAX4199ESA
MAX4199EUA
Guaranteed by CMR test
VCM = VEE - 0.1
to VCC - 1.1
MAX4199ESA
MAX4199EUA
MIN TYP
±15
±100
VEE - 0.1
84
80
±0.25
±0.75
110
110
MAX
±400
±700
±600
±1675
±5
±15
VCC - 1.1
UNITS
µV
µV/°C
V
dB
Output Voltage Swing
Short-Circuit Current
RL = 25kΩ, ±10mV input overdrive
RL = 5kΩ, ±10mV input overdrive
Sink/source
VEE + 0.1 VEE + 0.02 to
to VCC - 0.1 VCC - 0.02
VEE + 0.2 VEE + 0.1 to
to VCC - 0.2 VCC - 0.1
±4.5
V
mA
Gain Error
VCM = VCC / 2,
TA = +25°C
RL = 25kΩ, VEE + 0.1V ≤
VOUT ≤ VCC - 0.1V
RL = 5kΩ, VEE + 0.2V ≤
VOUT ≤ VCC - 0.2V
±0.01
±0.01
±0.3
±0.3
%
Gain Temperature Coefficient
VEE + 0.1V ≤
VOUT ≤ VCC -
0.1V
MAX4199ESA
MAX4199EUA
±1 ±5
ppm/°C
±2 ±10
Supply Current
Shutdown Supply Current
Input Logic High Voltage (Note 3)
Input Logic Low Voltage (Note 3)
ICC
I S HDN
VIH
VIL
VCM = VCC / 2, VDIFF = 0
VCC - 1.5
42
6.5
VCC - 2.5
µA
µA
V
V
Note 1: The MAX4198EUA and the MAX4199EUA are 100% production tested at +25°C. All temperature limits are guaranteed
by design.
Note 2: Guaranteed by PSR test.
Note 3: When shutdown input is at logic high, the part is active; when at logic low, the part is in shutdown.
_______________________________________________________________________________________ 5
5 Page 
Micropower, Single-Supply, Rail-to-Rail
Precision Differential Amplifiers
Instrumentation Amplifier Applications
For applications that require a complete low-power
instrumentation amplifier, refer to the MAX4194–
MAX4197 data sheet. Some differential to single-ended
voltage amplifier applications that don’t require a high
input impedance can use the MAX4198/MAX4199 for
gains of +1V/V or +10V/V. The MAX4198/MAX4199 can
also be used as an instrumentation amplifier building
block. The circuit of Figure 7 takes advantage of the
10pA (max), 0.1pA (typ) bias current of the MAX406A
to form an instrumentation amplifier similar to the
MAX4194 family, except with lower input bias currents.
The MAX406A's low 1.2µA supply current maintains a
low overall supply current.
IN- 2
IN+
VA
3
REF 1
VCC
VEE
MAX4198
5 FB
6 OUT
VOUT
VOUT = 2VA
VA IN-
VCC
IN+
REF
VCC
MAX4198
FB
OUT VOUT
VOUT = -VA
Figure 4. Precision Gain of Two Amplifiers
Figure 5. Single-Supply Inverting Amplifier Biased at VCC / 2
VA 2
IN-
MAX4544
6
NO
53
COM IN+
4
NC
1
REF
IN 1
FB 5
VCC
6
OUT
VOUT
VEE
MAX4198
LOGIC
IN
0
1
VOUT
-VA
+VA
VA
A1
R2
R1
R2
A2
VB
IN-
IN+
FB
MAX4198
OUT VOUT
REF
NOTE: MAX4544 PINOUT FOR 6-PIN SOT23-6
A1, A2 = MAX406A
VOUT = (1 + 2R2 / R1) (VB - VA)
Figure 6. Digitally Controlled Precision Gain of ±1 Amplifier
Figure 7. Ultra-Low Input Bias Current (0.1pA) Instrumentation
Amplifiers with 47µA Supply-Current Consumption
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX4199ESA.PDF ] | |
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