MAX1277：1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference
The MAX1277/MAX1279 are low-power, high-speed, serial-output, 12-bit, analog-to-digital converters (ADCs) with an internal reference that operates at up to 1.5Msps. These devices feature true-differential inputs, offering better noise immunity, distortion improvements, and a wider dynamic range over single-ended inputs. A standard SPI™/QSPI™/MICROWIRE™ interface provides the clock necessary for conversion. These devices easily interface with standard digital signal processor (DSP) synchronous serial interfaces. The MAX1277/MAX1279 operate from a single +2.7V to +3.6V supply voltage. The MAX1277/MAX1279 include a 2.048V internal reference. The MAX1277 has a unipolar analog input, while the MAX1279 has a bipolar analog input. These devices feature a partial power-down mode and a full power-down mode for use between conversions, which lower the supply current to 2mA (typ) and 1µA (max), respectively. Also featured is a separate power-supply input (VL), which allows direct interfacing to +1.8V to VDD digital logic. The fast conversion speed, low-power dissipation, excellent AC performance, and DC accuracy (±1 LSB INL) make the MAX1277/MAX1279 ideal for industrial process control, motor control, and base-station applications. The MAX1277/MAX1279 come in a 12-pin TQFN package, and are available in the extended (-40°C to +85°C) temperature range.
Key Features
| MAX1277, MAX1279: Typical Operating Circuit Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| MAX1277-MAX1279 Data Sheet | MAX1277-MAX1279.pdf |
Parametrics
| Part Number | Resolution (bits) | Input Chan. | Conv. Rate (ksps) | ADC Architecture | Data Bus | Diff/S.E. Input | Internal VREF (V) | Unipolar VIN (V) | Bipolar VIN (±V) | THD (dB) | INL (±LSB) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADC | max | nominal | max | max | See Notes | ||||||||
| MAX1277 | 12 | 1 | 1500 | SAR | SPI | Diff. Only | 2.048 | 2.048 | 1.024 | -80 | 1 | TQFN/12 | $8.04 @500 |
| MAX1279 | TQFN/12 | $5.11 @500 | |||||||||||
Related Products
- MAX11108：Tiny, 2.1mm x 1.6mm, 3Msps, Low-Power, Serial 12-Bit ADC
- MAX11105：2Msps/3Msps, Low-Power, Serial 12-/10-/8-Bit ADCs
- MAX1279：1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference
- MAX1276：1.8Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX1277ACTC | No Longer Available | MAX1277AETC+ | TQFN,;12 pin;16.8 mm² | 0°C to +70°C | No |
| MAX1277ACTC-T | No Longer Available | MAX1277AETC+ | QFN; | 0°C to +70°C | See data sheet |
| MAX1277AETC+ | Active | TQFN,;12 pin;16.8 mm² | -40°C to +85°C | Lead Free | |
| MAX1277AETC+T | Active | TQFN,;12 pin;16.8 mm² | -40°C to +85°C | Lead Free | |
| MAX1277BCTC | No Longer Available | MAX1277BETC+ | TQFN,;12 pin;16.8 mm² | 0°C to +70°C | No |
| MAX1277BCTC-T | No Longer Available | MAX1277BETC+ | QFN; | 0°C to +70°C | See data sheet |
| MAX1277BETC | No Longer Available | MAX1277BETC+ | TQFN,;12 pin;16.8 mm² | -40°C to +85°C | No |
| MAX1277BETC+ | Active | TQFN,;12 pin;16.8 mm² | -40°C to +85°C | Lead Free | |
| MAX1277BETC+T | Active | TQFN,;12 pin;16.8 mm² | -40°C to +85°C | Lead Free | |
| MAX1277BETC-T | No Longer Available | MAX1277BETC+T | QFN; | -40°C to +85°C | See data sheet |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1277CTC | No Longer Available | THNQFN; | 0°C to +70°C | See data sheet | |
| MAX1277ETC | No Longer Available | THNQFN; | -40°C to +85°C | See data sheet |
- MAX1277-MAX1279.pdf MAX1279
- MAX1277-MAX1279.pdf MAX1279
