ADC Single 2.8Msps 12-bit Parallel 48-Pin LQFP T/R

The MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314 12-bit, analog-to-digital converters (ADCs) offer eight, four, or two independent input channels. Independent track-and-hold (T/H) circuitry provides simultaneous sampling for each channel. The MAX1304/MAX1305/MAX1306 provide a 0 to +5V input range with ±6V fault-tolerant inputs. The MAX1308/MAX1309/MAX1310 provide a ±5V input range with ±16.5V fault-tolerant inputs. The MAX1312/MAX1313/MAX1314 have a ±10V input range with ±16.5V fault-tolerant inputs. These ADCs convert two channels in 0.9µs, and up to eight channels in 1.98µs, with an 8-channel throughput of 456ksps per channel. Other features include a 20MHz T/H input bandwidth, internal clock, internal (+2.5V) or external (+2.0V to +3.0V) reference, and power-saving modes. A 20MHz, 12-bit, bidirectional parallel data bus provides the conversion results and accepts digital inputs that activate each channel individually. All devices operate from a +4.75V to +5.25V analog supply and a +2.7V to +5.25V digital supply and consume 57mA total supply current when fully operational. Each device is available in a 48-pin 7mm x 7mm LQFP package and operates over the extended -40°C to +85°C temperature range.

• Up to Eight Channels of Simultaneous Sampling
  • 8ns Aperture Delay
  • 100ps Channel-to-Channel T/H Match

Extended Input Ranges

• 0 to +5V (MAX1304/MAX1305/MAX1306)
• -5V to +5V (MAX1308/MAX1309/MAX1310)
• -10V to +10V (MAX1312/MAX1313/MAX1314)

Fast Conversion Time

• One Channel in 0.72µs
• Two Channels in 0.9µs
• Four Channels in 1.26µs
• Eight Channels in 1.98µs

High Throughput

• 1075ksps/Channel for One Channel
• 901ksps/Channel for Two Channels
• 680ksps/Channel for Four Channels
• 456ksps/Channel for Eight Channels

±1 LSB INL, ±0.9 LSB DNL (max)

84dBc SFDR, -86dBc THD, 71dB SINAD, f_IN = 500kHz at 0.4dBFS

12-Bit, 20MHz, 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

• 55mA Analog Supply Current
• 1.3mA Digital Supply Current
• Shutdown and Power-Saving Modes

48-Pin LQFP Package (7mm x 7mm Footprint)