MAX4208AUA+ by Analog Devices

Ultra-Low Offset/Drift, Precision Instrumentation Amplifiers with REF Buffer

Status: Active
Series: MAX4208
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX4208/MAX4209 ultra-low offset and drift instrumentation amplifiers feature exceptional precision specifications, low power consumption, rail-to-rail output, excellent gain-bandwidth product, and buffered REFIN/MODE input in a very small µMAX® 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 20µV offset voltage, allows ground-sensing capability, provides 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 750µA of quiescent current (when the internal buffer is off) and only 1.4µA 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 µMAX packages and are specified over the automotive operating temperature range (-40°C to +125°C).

Where to Buy

Prices starting from US$1.95

Distributor Stock
Logo for Newark
Newark Electronics
from US$1.95
171
in stock
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Logo for element14 Singapore
element14
from US$3.58
91
in stock
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Farnell
from US$3.60
91
in stock
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Logo for TME
TME
from US$3.31
0
in stock
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Features

Spread-Spectrum, Auto-Zero Instrumentation Amplifiers Improve DC Characteristics to Maximize Sensor Performance Input Offset Voltage: ±20µV (max) at +25°C ±0.25% (max) Gain Error Low 0.2µV/°C Offset Voltage Drift 1pA CMOS Input Bias Current True Ground Sensing with Rail-to-Rail Output 750kHz Gain-Bandwidth Product
Input Offset Voltage: ±20µV (max) at +25°C
±0.25% (max) Gain Error
Low 0.2µV/°C Offset Voltage Drift
1pA CMOS Input Bias Current
True Ground Sensing with Rail-to-Rail Output
750kHz Gain-Bandwidth Product
Buffered REF Input for High Accuracy and Bipolar Operation
Low Power Operation Supports Remote Sensing and Battery-Powered Applications 2.85V to 5.5V Single-Supply Operation (or ±1.425V to ±2.75V Dual Supplies) 750µA Supply Current 1.4µA Shutdown Mode
2.85V to 5.5V Single-Supply Operation (or ±1.425V to ±2.75V Dual Supplies)
750µA Supply Current
1.4µA Shutdown Mode
Adjustable (MAX4208) and Fixed Gain of 100 (MAX4209) Provide Design Flexibility

Specifications

Architecture Indirect Current-Feedback
# Amplifiers 1
VCMVR (to Neg. Rail) Yes
Rail to Rail Output Only
AV (V/V) Adj.
ICC per Amp. (mA) (typ) 0.75
VOS (µV) (max) 20
CMRR @DC (dB) (typ) 135
PSRR @DC (dB) (typ) 125
Input IBIAS (nA) (max) 0.01
Unity Gain BW (MHz) (typ) 0.75
Oper. Temp. (°C) -40 to +125
Package/Pins UMAX/8
BudgetaryPrice (See Notes) 1.83

Last 6 months Inventory & Pricing History

MAX4208AUA+ Amplifiers & Comparators by Analog Devices

INSTR AMPLIFIER 750KHZ 135DB UMAX-8

Semiconductors - ICs
> Amplifiers & Comparators
> Instrumentation Amplifiers
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

No. of Amplifiers 1 Amplifier, 1Amplifiers
Input Offset Voltage 20µV
Slew Rate 80V/ms
Bandwidth 750kHz
Supply Voltage Range ± 1.425V to ± 2.75V 2.85V to 5.5V
Amplifier Case Style µMAX
No. of Pins 8Pins
Amplifier Output Rail to Rail
CMRR 135dB
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History

Alternative Descriptions

Instr Amplifier, 750Khz, 135Db, Umax-8 | Newark Electronics
INSTR AMPLIFIER, 750KHZ, 135DB, UMAX-8 | element14
IC: instrumentation amplifier | TME

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This part has not been flagged as RoHS Compliant.

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