MAX1225：1.5Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs
The MAX1224/MAX1225 low-power, high-speed, serial-output, 12-bit, analog-to-digital converters (ADCs) operate 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 MAX1224/MAX1225 operate from a single +2.7V to +3.6V supply voltage and require an external reference. The MAX1224 has a unipolar analog input, while the MAX1225 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 1mA (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, good AC performance, and DC accuracy (±1.5 LSB INL) make the MAX1224/MAX1225 ideal for industrial process control, motor control, and base-station applications. The MAX1224/MAX1225 come in a 12-pin TQFN package, and are available in the extended (-40°C to +85°C) temperature range.
Key Features
| MAX1224, MAX1225: Typical Operating Circuit Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| MAX1224-MAX1225 Data Sheet | MAX1224-MAX1225.pdf |
Parametrics
| Part Number | Resolution (bits) | Input Chan. | Conv. Rate (ksps) | ADC Architecture | Data Bus | Diff/S.E. Input | External VREF (V) | External VREF (V) | Unipolar VIN (V) | Bipolar VIN (±V) | SNR (dB) | THD (dB) | INL (±LSB) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADC | max | min | max | max | max | See Notes | |||||||||
| MAX1224 | 12 | 1 | 1500 | SAR | SPI | Diff. Only | 1 | 3.6 | 3.6 | 1.8 | 69 | -80 | 1.5 | TQFN/12 | $7.63 @500 |
| MAX1225 | TQFN/12 | - | |||||||||||||
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
- MAX1277：1.5Msps, 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 |
|---|---|---|---|---|---|
| MAX1225CTC | No Longer Available | TQFN,;12 pin;16.8 mm² | 0°C to +70°C | No | |
| MAX1225CTC+ | No Longer Available | TQFN,;12 pin;16.8 mm² | 0°C to +70°C | Lead Free | |
| MAX1225CTC+T | No Longer Available | QFN;12 pin | 0°C to +70°C | See data sheet | |
| MAX1225CTC-T | No Longer Available | QFN;12 pin | 0°C to +70°C | See data sheet | |
| MAX1225ETC | No Longer Available | TQFN,;12 pin;16.8 mm² | -40°C to +85°C | No | |
| MAX1225ETC+ | No Longer Available | MAX1224ETC+ | TQFN,;12 pin;16.8 mm² | -40°C to +85°C | Lead Free |
| MAX1225ETC+T | Active | TQFN,;12 pin;16.8 mm² | -40°C to +85°C | Lead Free | |
| MAX1225ETC-T | No Longer Available | QFN;12 pin | -40°C to +85°C | See data sheet |
- MAX1224-MAX1225.pdf MAX1225
- MAX1224-MAX1225_cn.pdf MAX1225
- MAX1224-MAX1225_cn.pdf MAX1225
