The MAX1304MAX1306/MAX1308MAX1310/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.
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SIN/COS Position Encoder Multiphase Motor Control Multiphase Power Monitoring Power-Grid Synchronization Power-Factor Monitoring Vibration and Waveform Analysis
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♦ Up to Eight Channels of Simultaneous Sampling8ns 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 TimeOne Channel in 0.72µs Two Channels in 0.9µsFour Channels in 1.26µsEight Channels in 1.98µs♦ High Throughput 1075ksps/Channel for One Channel 901ksps/Channel for Two Channels680ksps/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, 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 CurrentShutdown and Power-Saving Modes♦ 48-Pin TQFP Package (7mm x 7mm Footprint)
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AVDD to AGND .........................................................-0.3V to +6V
DVDD to DGND.........................................................-0.3V to +6V
AGND to DGND......................................................-0.3V to +0.3V
CH0CH7, I.C. to AGND (MAX1304/MAX1305/MAX1306).......±6V
CH0CH7, I.C. to AGND (MAX1308/MAX1309/MAX1310)..±16.5V
CH0CH7, I.C. to AGND (MAX1312/MAX1313/MAX1314)..±16.5V
D0D11 to DGND ....................................-0.3V to (DVDD + 0.3V)
EOC, EOLC, RD, WR, CS to DGND............-0.3V to (DVDD + 0.3V)
CONVST, CLK, SHDN, CHSHDN to DGND ..-0.3V to (DVDD + 0.3V)
INTCLK/EXTCLK to AGND..........................-0.3V to (AVDD + 0.3V)
REFMS, REF, MSV to AGND........................-0.3V to (AVDD + 0.3V)
REF+, COM, REF- to AGND........................-0.3V to (AVDD + 0.3V)
Maximum Current into Any Pin Except AVDD, DVDD, AGND,
DGND ..............................................................................±50mA
Continuous Power Dissipation (TA = +70°C)
TQFP (derate 22.7mW/°C above +70°C)...................1818.2mW
Operating Temperature Range .........................-40°C to +85°C
Junction Temperature.....................................................+150°C
Storage Temperature Range ...........................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
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