參數(shù)資料
型號(hào)： MAX4209HAUA+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/17頁(yè)
文件大?。?/td> 0K
描述： IC INSTRUMENT AMP PREC 8-UMAX
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
放大器類(lèi)型： 儀表
電路數(shù)： 1
輸出類(lèi)型： 滿擺幅
轉(zhuǎn)換速率： 0.055 V/µs
-3db帶寬： 7.5kHz
電流 - 輸入偏壓： 1pA
電壓 - 輸入偏移： 3µV
電流 - 電源： 1.4mA
電流 - 輸出 / 通道： 25mA
電壓 - 電源，單路/雙路(±)： 2.85 V ~ 5.5 V，±1.425 V ~ 2.25 V
工作溫度： -40°C ~ 125°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）
供應(yīng)商設(shè)備封裝： 8-uMAX
包裝： 帶卷 (TR)
General Description
The MAX4208/MAX4209 ultra-low offset and drift instru-
mentation amplifiers feature exceptional precision specifi-
cations, low power consumption, rail-to-rail output,
excellent gain-bandwidth product, and buffered
REFIN/MODE input in a very small MAX package.
These devices use a spread-spectrum, autozeroing
technique that constantly measures and corrects the
input offset, eliminating drift over time and temperature and
the effect of 1/f noise. This technique achieves less than
20V offset voltage, allows ground-sensing capability, pro-
vides ultra-low CMOS input bias current and increased
common-mode rejection performance.
The MAX4208/MAX4209 provide high-impedance inputs
optimized for small-signal differential voltages (±100mV).
All devices provide a gain-bandwidth product of 750kHz.
The MAX4208 provides an adjustable gain with two
external resistors or unity gain with FB connected to OUT.
The MAX4209 is available with a fixed gain of 100V/V with
±0.03% (typ) accuracy. Both devices include a reference
input (REF) to level-shift the output, allowing for bipolar
signals in single-supply applications. In both devices,
REFIN/MODE is an input to a precision unity-gain buffer,
which sets the REF voltage to level-shift the output. The
internal REF buffer allows the reference to be set by a
simple resistive divider or an ADC reference without any
loading error.
The MAX4208/MAX4209 operate with a 2.85V to 5.5V
single-supply voltage and consume only 750A
of quiescent current (when the internal buffer is off) and
only 1.4A in shutdown mode. These amplifiers
also operate with ±2.5V dual supplies with REF
connected to ground and REFIN/MODE to VSS.
The MAX4208/MAX4209 are available in space-saving
8-pin MAX packages and are specified over the auto-
motive operating temperature range (-40°C to +125°C).
Applications
Automotive Transducer Applications
Strain-Gauge Amplifiers
Industrial Process Control
Battery-Powered Medical Equipment
Precision Low-Side Current Sense
Notebook Computers
Differential Voltage Amplification
Features
Ultra-Low Input Offset Voltage
±20V (max) at +25°C
±0.25% (max) Gain Error
Low 0.2V/°C Offset Voltage Drift
1pA CMOS Input Bias Current
True Ground Sensing with Rail-to-Rail Output
Buffered REF Input for High Accuracy and
Bipolar Operation
2.85V to 5.5V Single-Supply Operation
(or ±1.425V to ±2.75V Dual Supplies)
750A Supply Current
1.4A Shutdown Mode
750kHz Gain-Bandwidth Product
Operate Over the -40°C to +125°C Automotive
Temperature Range
Tiny 8-Pin MAX Package
Note: All 8-pin MAX packages have package code U8-1.
+Denotes a lead(Pb)-free/RoHS-compliant package.
MAX4208/MAX4209
Ultra-Low Offset/Drift, Precision
Instrumentation Amplifiers with REF Buffer
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-0924; Rev 1; 4/09
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION
KIT
AVAILABLE
PART
TEMP RANGE
PIN-
PACKAGE
GAIN
(V/V)
MAX4208AUA+T
-40°C to +125°C
8 MAX
ADJ
MAX4209HAUA+T
-40°C to +125°C
8 MAX
100
MAX is a registered trademark of Maxim Integrated Products, Inc.
IN-
IN+
REFIN/MODE
REF
FB
MAX4208
R4
R3
VDD
VSS
CFB
5V
OUT
REF
R2
FB
R1
G = 1 + R2
R1
BUFFER OUT =
VDD/2
Typical Application Circuit
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