MAX1149
PRODUCTIONMultichannel, True-Differential, Serial, 14-Bit ADCs
- Part Models
- 3
- 1ku List Price
- Starting From $15.41
Part Details
- 8-Channel Single-Ended or 4-Channel Differential Inputs (MAX1148/MAX1149)
- 4-Channel Single-Ended or 2-Channel Differential Inputs (MAX1146/MAX1147)
- Internal Multiplexer and T/H
- Single-Supply Operation
- 4.75V to 5.25V Supply (MAX1146/MAX1148)
- 2.7V to 3.6V Supply (MAX1147/MAX1149)
- Internal Reference
- +4.096V (MAX1146/MAX1148)
- +2.500V (MAX1147/MAX1149)
- 116ksps Sampling Rate
- Low Power
- 1.1mA (116ksps)
- 120µA (10ksps)
- 12µA (1ksps)
- 300nA (Power-Down Mode)
- SPI-/QSPI-/MICROWIRE Compatible
- 20-Pin TSSOP
The MAX1146–MAX1149 low-power, 14-bit, multichannel, analog-to-digital converters (ADCs) feature an internal track/hold (T/H), voltage reference, and clock. The MAX1146/MAX1148 operate from a single +4.75V to +5.25V supply, and the MAX1147/MAX1149 operate from a single +2.7V to +3.6V supply. All analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation.
The 4-wire serial interface connects directly to SPI™/QSPI™/MICROWIRE™ devices without external logic. The serial strobe output (SSTRB) allows convenient connection to digital signal processors. The MAX1146–MAX1149 use an internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions.
The MAX1146/MAX1148 include an internal +4.096V reference, while the MAX1147/MAX1149 include an internal +2.500V reference. All devices accept an external reference from 1.5V to VDD.
The MAX1146–MAX1149 provide a hardware shutdown and two software power-down modes. Using the software power-down modes allows the devices to be powered down between conversions. When powered down, accessing the serial interface automatically powers up the devices. The quick turn-on time allows power-down between all conversions. This technique reduces supply current to under 120µA for quick turn-on. The MAX1146–MAX1149 are available in a 20-pin TSSOP package.
Applications
- Battery-Powered Instruments
- Data Acquisition
- Medical Instruments
- Portable Data Logging
- Process Control
Documentation
Data Sheet 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX1149BCUP+ | Thin Shrink Small-Outline Package | ||
| MAX1149BEUP+ | Thin Shrink Small-Outline Package | ||
| MAX1149BEUP+T | Thin Shrink Small-Outline Package |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Dec 11, 2018 - 1754N ASSEMBLY |
||
| MAX1149BCUP+ | PRODUCTION | |
| MAX1149BEUP+ | PRODUCTION | |
| MAX1149BEUP+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Multiplexed A/D Converters 7 | ||
| MAX1246 | PRODUCTION | +2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16 |
| MAX1247 | PRODUCTION | +2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16 |
| MAX1248 | PRODUCTION | +2.7V to +5.25V, Low-Power, 4-Channel, Serial, 10-Bit ADCs in QSOP-16 |
| MAX1249 | PRODUCTION | +2.7V to +5.25V, Low-Power, 4-Channel, Serial, 10-Bit ADCs in QSOP-16 |
| MAX1067 | PRODUCTION | Multichannel, 14-Bit, 200ksps Analog-to-Digital Converters |
| MAX1035 | PRODUCTION | 8-/4-Channel, ±VREF Multirange Inputs, Serial 14-Bit ADCs |
| MAX1033 | PRODUCTION | 8- and 4-Channel, ±3 x VREF Multirange Inputs, Serial 14-Bit ADCs |
| Single Channel A/D Converters 1 | ||
| MAX11101 | PRODUCTION | 14-Bit, +5V, 200ksps ADC with 10µA Shutdown |
Tools & Simulations
Software Development 1
Evaluation Kits
Evaluation Kit/Evaluation System for the MAX1149
Evaluation Kit/Evaluation System for the MAX1149
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