Low-Power, Low-Distortion 10-Bit ADCs Deliver 61dB SNR
The MAX1426 10-bit, monolithic analog-to-digital converter (ADC) is capable of a 10Msps sampling rate. This device features an internal track-and-hold (T/H) amplifier for excellent dynamic performance; at the same time, it minimizes the number of external components. Low input capacitance of only 8pF minimizes input drive requirements. A wide input bandwidth (up to 150MHz) makes this device suitable for digital RF/IF downconverter applications employing undersampling techniques. The MAX1426 employs a differential pipelined architecture with a wideband T/H amplifier to maximize throughput while limiting power consumption to only 156mW. The MAX1426 generates an internal +2.5V reference that supplies three additional reference voltages (+3.25V, +2.25V, and +1.25V). These reference voltages provide a differential input range of +2V to -2V. The analog inputs are biased internally to correct the DC level, eliminating the need for external biasing on AC-coupled applications. A separate +3V digital logic supply input allows for separation of digital and analog circuitry. The output data is in two's complement format. The MAX1426 is available in the space-saving 28-pin SSOP package. For a pin-compatible version at a higher data rate, refer to the MAX1424 or MAX1425.
title | Download file |
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MAX1426 Data Sheet | MAX1426.pdf |
Part Number | Input Chan. | Resolution (bits) | Sample Rate (Msps) | SFDR (dBc) | ENOB (bits) | SINAD (dB) | SNR (dB) | THD (dB) | DNL (±LSB) | INL (±LSB) | Full Pwr. BW (MHz) | ICC (mA) | Data Bus Interface | Package/Pins | Budgetary Price |
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max ≥ | min | min | min | typ | See Notes | ||||||||||
MAX1426 | 1 | 10 | 10 | 72 | 9.7 | 60 | 61 | -70 | 1 | 1.5 | 400 | 32.3 | µP/10 | SSOP/28 | $3.17 @1k |
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
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MAX1426EAI | No Longer Available | MAX1426EAI+ | SSOP,;28 pin;81.6 mm² | -40°C to +85°C | See data sheet |
MAX1426EAI+ | Active | SSOP,;28 pin;81.6 mm² | -40°C to +85°C | Lead Free | |
MAX1426EAI+T | Active | SSOP; | -40°C to +85°C | See data sheet | |
MAX1426EAI-T | No Longer Available | MAX1426EAI+T | SSOP,;28 pin;81.6 mm² | -40°C to +85°C | See data sheet |