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MAX1325：8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges

8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V and 0 to +5V Analog Input Ranges

The MAX1316–MAX1318/MAX1320–MAX1322/MAX1324–MAX1326 14-bit, analog-to-digital converters (ADCs) offer two, four, or eight independent input channels. Independent track/hold (T/H) circuitry provides simultaneous sampling for each channel. The MAX1316/MAX1317/MAX1318 have a 0 to +5V input range with ±6.0V fault-tolerant inputs. The MAX1320/MAX1321/MAX1322 have a ±5V input range with ±16.5V fault-tolerant inputs. The MAX1324/MAX1325/MAX1326 have a ±10V input range with ±16.5V fault-tolerant inputs. These ADCs convert two channels in 2µs, and up to eight channels in 3.8µs, and have an 8-channel throughput of 250ksps per channel. Other features include a 10MHz T/H input bandwidth, internal clock, internal (+2.5V) or external (+2.0V to +3.0V) reference, and power-saving modes. A 16.6MHz, 14-bit, bidirectional, parallel interface provides the conversion results and accepts digital configuration inputs. These devices operate from a +4.75V to +5.25V analog supply and a separate +2.7V to +5.25V digital supply, and consume less than 50mA total supply current. These devices come in a 48-pin TQFP package and operate over the extended -40°C to +85°C temperature range.

Key Features 8-/4-/2-Channel, 14-Bit ADCs ±1.5 LSB INL, ±1 LSB DNL, No Missing Codes 90dBc SFDR, -86dBc THD, 76.5dB SINAD, 77dB SNR at 100kHz Input On-Chip T/H Circuit for Each Channel 10ns Aperture Delay 50ps Channel-to-Channel T/H Matching Fast Conversion Time One Channel in 1.6µs Two Channels in 1.9µs Four Channels in 2.5µs Eight Channels in 3.7µs High Throughput 526ksps/ch for One Channel 455ksps/ch for Two Channels 357ksps/ch for Four Channels 250ksps/ch for Eight Channels Flexible Input Ranges 0 to +5V (MAX1316/MAX1317/MAX1318) ±5V (MAX1320/MAX1321/MAX1322) ±10V (MAX1324/MAX1325/MAX1326) No Calibration Needed 14-Bit, High-Speed, Parallel Interface Internal or External Clock +2.5V Internal Reference or +2.0V to +3.0V External Reference +5V Analog Supply, +3V to +5V Digital Supply 46mA Analog Supply Current (typ) 1.6mA Digital Supply Current (max) Shutdown and Power-Saving Modes 48-Pin TQFP Package (7mm x 7mm Footprint)

MAX1316, MAX1317, MAX1318, MAX1320, MAX1321, MAX1322, MAX1324, MAX1325, MAX1326: Functional Diagram Applications/Uses Multiphase Motor Control Power-Factor Monitoring and Correction Power-Grid Synchronization Vibration and Waveform Analysis

DataSheet

Parametrics

Design kits & evaluation modules

• MAX1320EVKIT

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