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MAX4249, MAX4250, MAX4251, MAX4252, MAX4253, MAX4254, MAX4255, MAX4256, MAX4257
UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
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Status
| Part Number |
Status |
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MAX4249
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Active: In Production. |
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MAX4250
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Active: In Production. |
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MAX4251
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Active: In Production. |
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MAX4252
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Active: In Production. |
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MAX4253
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Active: In Production. |
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MAX4254
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This product is No Longer Available. See Ordering Information for recommended replacements. |
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MAX4255
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Active: In Production. |
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MAX4256
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Active: In Production. |
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MAX4257
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Active: In Production. |
Description
The MAX4249–MAX4257 low-noise, low-distortion operational amplifiers offer rail-to-rail outputs and single-supply operation down to 2.4V. They draw 400µA of quiescent supply current per amplifier while featuring ultra-low distortion (0.0002% THD), as well as low input voltage-noise density (7.9nV per root-Hz ) and low input current-noise density (0.5fA per root-Hz). These features make the devices an ideal choice for portable/battery-powered applications that require low distortion and/or low noise.
For additional power conservation, the MAX4249/MAX4251/MAX4253/MAX4256 offer a low-power shutdown mode that reduces supply current to 0.5µA and puts the amplifiers' outputs into a high-impedance state. The MAX4249–MAX4257's outputs swing rail-to-rail and their input common-mode voltage range includes ground. The MAX4250–MAX4254 are unity-gain stable with a gain-bandwidth product of 3MHz. The MAX4249/MAX4255/MAX4256/MAX4257 are internally compensated for gains of 10V/V or greater with a gain-bandwidth product of 22MHz. The single MAX4250/MAX4255 are available in space-saving 5-pin SOT23 packages. The MAX4252 is available in an 8-bump chip-scale package (UCSP™) and the MAX4253 is available in a 10-bump UCSP. The MAX4250AAUK comes in a 5-pin SOT23 package and is specified for operation over the automotive (-40°C to +125°C) temperature range.
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Data Sheet
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Key Features
- Available in Space-Saving UCSP, SOT23, and µMAX® Packages
- Low Distortion: 0.0002% THD (1kΩ load)
- 400µA Quiescent Supply Current per Amplifier
- Single-Supply Operation from 2.4V to 5.5V
- Input Common-Mode Voltage Range Includes Ground
- Outputs Swing Within 8mV of Rails with a 10kΩ Load
- 3MHz GBW Product, Unity-Gain Stable (MAX4250-MAX4254)
- 22MHz GBW Product, Stable with AV ≥ 10V/V (MAX4249/MAX4255/MAX4256/MAX4257)
- Excellent DC Characteristics
- VOS = 70µV
- IBIAS = 1pA
- Large-Signal Voltage Gain = 116dB
- Low-Power Shutdown Mode
- Reduces Supply Current to 0.5µA
- Places Outputs in a High-Impedance State
- 400pF Capacitive-Load Handling Capability
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Applications/Uses
- ADC Buffers
- Automatic Test Equipment (ATE)
- Cardiac Monitor
- Digital Scales/Strain Gauges
- Displays: Industrial, Front Panel, and Instrumentation
- Industrial: Process Measurement and Control
- Medical Instrumentation
- PA Control
- Panel Meters
- Portable Battery-Powered Equipment
- Power Meters
- Programmable Logic Controllers (PLCs)
- Wireless Communications Devices
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Key Specifications:
| Operational Amplifiers |
| Part Number |
Amps. |
Rail to Rail |
AVCL |
VSUPPLY (Total)
(V) |
VSUPPLY (Total)
(V) |
ICC per Amp.
(µA) |
ICC per Amp.
(µA) |
VOS
(µV) |
CMRR @DC
(dB) |
PSRR @DC
(dB) |
Input IBIAS
(nA) |
Unity Gain BW
(MHz) |
Slew Rate
(V/µs) |
en
(nV/√Hz) |
in
(pA/√Hz) |
Low Pwr. Shutdn |
Package/Pins |
Budgetary Price |
| min |
min |
max |
typ |
max |
max |
typ |
typ |
max |
typ |
typ |
See Notes |
| MAX4249 |
2 |
Output Only |
10 |
2.4 |
5.5 |
420 |
575 |
750 |
115 |
100 |
0.1 |
22 |
2.1 |
8.9 |
0.0005 |
Yes |
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$0.90 @1k |
| MAX4250 |
1 |
1 |
3 |
0.3 |
No |
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$1.28 @1k |
| MAX4251 |
1 |
1 |
3 |
0.3 |
Yes |
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$1.12 @1k |
| MAX4252 |
2 |
1 |
3 |
0.3 |
No |
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$0.82 @1k |
| MAX4253 |
2 |
1 |
3 |
0.3 |
Yes |
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$0.90 @1k |
| MAX4255 |
1 |
10 |
22 |
2.1 |
No |
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$1.40 @1k |
| MAX4256 |
1 |
10 |
22 |
2.1 |
No |
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$1.12 @1k |
| MAX4257 |
2 |
10 |
22 |
2.1 |
No |
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$0.82 @1k |
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See All Operational Amplifiers (160)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
More Information
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Information Index
Document Ref.: 19-1295
Rev 8;
2011-11-15
This page last modified: 2011-11-15
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