Описание
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.
- 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
- 10ns Aperture Delay
- 50ps Channel-to-Channel T/H Matching
- One Channel in 1.6µs
- Two Channels in 1.9µs
- Four Channels in 2.5µs
- Eight Channels in 3.7µs
- 526ksps/ch for One Channel
- 455ksps/ch for Two Channels
- 357ksps/ch for Four Channels
- 250ksps/ch for Eight Channels
- 0 to +5V (MAX1316/MAX1317/MAX1318)
- ±5V (MAX1320/MAX1321/MAX1322)
- ±10V (MAX1324/MAX1325/MAX1326)
- 46mA Analog Supply Current (typ)
- 1.6mA Digital Supply Current (max)
- Shutdown and Power-Saving Modes