8-/4-/2-Channel / 12-Bit / Simultaneous-Sampling ADCs - Maxim
Description
19-3052; Rev 3; 8/04
8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges
General Description
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 TQFP package and operates over the extended -40°C to +85°C temperature range.
Features
♦ 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, fIN = 500kHz at 0.
4dBFS ♦ 12-Bit, 20MHz, Parall...
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