MAX1308ECM ,8-/4-/2-Channel / 12-Bit / Simultaneous-Sampling ADCs with 10V / 5V / and 0 to +5V Analog Input RangesFeaturesThe MAX1304–MAX1306/MAX1308–MAX1310/MAX1312– ♦ Up to Eight Channels of Simultaneous Samplin ..
MAX1308ECM ,8-/4-/2-Channel / 12-Bit / Simultaneous-Sampling ADCs with 10V / 5V / and 0 to +5V Analog Input RangesApplications♦ +2.5V Internal Reference or +2.0V to +3.0VExternal ReferenceSIN/COS Position Encoder♦ ..
MAX1308ECM ,8-/4-/2-Channel / 12-Bit / Simultaneous-Sampling ADCs with 10V / 5V / and 0 to +5V Analog Input RangesApplications♦ +2.5V Internal Reference or +2.0V to +3.0VExternal ReferenceSIN/COS Position Encoder♦ ..
MAX1308ECM+ ,8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input RangesElectrical Characteristics(V = +5V, V = +3V, V = V = 0V, V = V = +2.5V (external reference), C = C ..
MAX1308ECM-T ,8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Rangesfeatures include a 20MHz T/H • 1075ksps/Channel for One Channel input bandwidth, internal clock, in ..
MAX1309ECM ,8-/4-/2-Channel / 12-Bit / Simultaneous-Sampling ADCs with 10V / 5V / and 0 to +5V Analog Input Rangesfeatures include a 20MHz T/HEight Channels in 1.98µsinput bandwidth, internal clock, internal (+2.5 ..
MAX391ESE+ ,Precision, Quad, SPST Analog SwitchesMAX391/MAX392/MAX393Precision, Quad, SPST Analog Switches_______________
MAX391EUE ,Precision / Quad / SPST Analog SwitchesFeaturesThe MAX391/MAX392/MAX393 are precision, quad, Low On-Resistance, 20Ω Typicalsingle-pole/s ..
MAX391EUE+ ,Precision, Quad, SPST Analog SwitchesApplicationsMAX391CUE 0°C to +70°C 16 TSSOP U16-2Battery-Operated Systems Sample-and-Hold Circuit ..
MAX391MJE ,Precision / Quad / SPST Analog SwitchesApplicationsMAX391CUE 0°C to +70°C 16 TSSOPMAX391C/D 0°C to +70°C Dice*Battery-Operated Systems Sam ..
MAX392CPE ,Precision / Quad / SPST Analog SwitchesELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +5V ±10%, V- = -5V ±10%, GND = 0V, V = 2.4V, V = 0.8V ..
MAX392CPE+ ,Precision, Quad, SPST Analog SwitchesFeaturesThe MAX391/MAX392/MAX393 are precision, quad, ♦ Low On-Resistance, 20Ω Typicalsingle-pole/s ..
MAX1305ECM-MAX1308ECM-MAX1309ECM-MAX1310ECM-MAX1313ECM
8-/4-/2-Channel / 12-Bit / Simultaneous-Sampling ADCs with 10V / 5V / and 0 to +5V Analog Input Ranges
19-3052; Rev 3; 8/04
General DescriptionThe 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 simul-
taneous 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-tol-
erant 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 pro-
vides 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.
ApplicationsSIN/COS Position Encoder
Multiphase Motor Control
Multiphase Power Monitoring
Power-Grid Synchronization
Power-Factor Monitoring
Vibration and Waveform Analysis
FeaturesUp to Eight Channels of Simultaneous Sampling
8ns Aperture Delay
100ps Channel-to-Channel T/H MatchExtended 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 1.98µsHigh 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, 71dBSINAD,
fIN= 500kHz at 0.4dBFS12-Bit, 20MHz, Parallel InterfaceInternal 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 Modes48-Pin TQFP Package (7mm x 7mm Footprint)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
Ordering Information
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF = VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+ =
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), SHDN = DGND, TA= TMINto TMAX,
unless otherwise noted. Typical values are at TA= +25°C. See Figures 3 and 4.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
AVDD to AGND.........................................................-0.3V to +6V
DVDDto DGND.........................................................-0.3V to +6V
AGND to DGND.....................................................-0.3V to +0.3V
CH0–CH7, I.C. to AGND (MAX1304/MAX1305/MAX1306)....±6V
CH0–CH7, I.C. to AGND (MAX1308/MAX1309/MAX1310)..±16.5V
CH0–CH7, I.C. to AGND (MAX1312/MAX1313/MAX1314)..±16.5V
D0–D11 to DGND....................................-0.3V to (DVDD + 0.3V)
EOC, EOLC, RD, WR, CSto DGND.........-0.3V to (DVDD + 0.3V)
CONVST, CLK, SHDN, CHSHDNto DGND..-0.3V to (DVDD + 0.3V)
INTCLK/EXTCLKto 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
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ELECTRICAL CHARACTERISTICS (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF = VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+ =
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), SHDN = DGND, TA= TMINto TMAX,
unless otherwise noted. Typical values are at TA= +25°C. See Figures 3 and 4.)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ELECTRICAL CHARACTERISTICS (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF = VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+ =
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), SHDN = DGND, TA= TMINto TMAX,
unless otherwise noted. Typical values are at TA= +25°C. See Figures 3 and 4.)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ELECTRICAL CHARACTERISTICS (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF = VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+ =
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), SHDN = DGND, TA= TMINto TMAX,
unless otherwise noted. Typical values are at TA= +25°C. See Figures 3 and 4.)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input RangesMAX1312/MAX1313/MAX1314, VIN= -10V to +10V.
Note 2:All channel performance is guaranteed by correlation to a single channel test.
Note 3:The analog input resistance is terminated to an internal bias point (Figure 5). Calculate the analog input current using:
for VCHwithin the input voltage range.
Note 4:Throughput rate is given per channel. Throughput rate is a function of clock frequency (fCLK). The external clock through-
put rate is specified with fCLK= 16.67MHz and the internal clock throughput rate is specified with fCLK= 15MHz. See the
Data Throughputsection for more information.
Note 5:The REF input resistance is terminated to an internal +2.5V bias point (Figure 2). Calculate the REF input current using:
for VREFwithin the input voltage range.
Note 6:The REFMSinput resistance is terminated to an internal +2.5V bias point (Figure 2). Calculate the REFMSinput current using:
for VREFMSwithin the input voltage range.
Note 7:All analog inputs are driven with a -0.4dBFS 500kHz sine wave.
Note 8:Shutdown current is measured with the analog input floating. The large amplitude of the maximum shutdown current speci-
fication is due to automated test equipment limitations.
Note 9:CONVST must remain low for at least the acquisition period. The maximum acquisition time is limited by internal capacitor droop.
Note 10:CSto WRand CSto RDare internally AND together. Setup and hold times do not apply.
Note 11:Minimum CLK frequency is limited only by the internal T/H droop rate. Limit the time between the rising edge of CONVST
and the falling edge of EOLCto a maximum of 1ms.
ELECTRICAL CHARACTERISTICS (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF = VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+ =
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), SHDN = DGND, TA= TMINto TMAX,
unless otherwise noted. Typical values are at TA= +25°C. See Figures 3 and 4.)
Typical Operating Characteristics(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF= VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+=
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), fIN= 500kHz, AIN= -0.4dBFS. TA= +25°C,
unless otherwise noted.) (Figures 3 and 4)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ypical Operating Characteristics (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF= VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+=
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), fIN= 500kHz, AIN= -0.4dBFS. TA= +25°C,
unless otherwise noted.) (Figures 3 and 4)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ypical Operating Characteristics (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF= VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+=
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), fIN= 500kHz, AIN= -0.4dBFS. TA= +25°C,
unless otherwise noted.) (Figures 3 and 4)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
Typical Operating Characteristics (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF= VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+=
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), fIN= 500kHz, AIN= -0.4dBFS. TA= +25°C,
unless otherwise noted.) (Figures 3 and 4)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ypical Operating Characteristics (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF= VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+=
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), fIN= 500kHz, AIN= -0.4dBFS. TA= +25°C,
unless otherwise noted.) (Figures 3 and 4)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
ypical Operating Characteristics (continued)(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, VREF= VREFMS= +2.5V (external reference), CREF= CREFMS= 0.1µF, CREF+=
CREF-= 0.1µF, CREF+-to-REF-= 2.2µF || 0.1µF, CCOM= 2.2µF || 0.1µF, CMSV= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), fCLK= 16.67MHz 50% duty cycle, INTCLK/EXTCLK= AGND (external clock), fIN= 500kHz, AIN= -0.4dBFS. TA= +25°C,
unless otherwise noted.) (Figures 3 and 4)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
Pin Description
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
Detailed DescriptionThe MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–
MAX1314 are 12-bit ADCs. The devices offer 8, 4, or 2
independently selectable input channels, each with
dedicated T/H circuitry. Simultaneous sampling of all
active channels preserves relative phase information
making these devices ideal for motor control and power
monitoring. Three input ranges are available, 0 to +5V,
±5V and ±10V. The 0 to +5V devices provide ±6V fault-
tolerant inputs. The ±5V and ±10V devices provide
±16.5V fault-tolerant inputs. Two-channel conversion
results are available in 0.9µs. Conversion results from
all eight channels are available in 1.98µs. The 8-chan-
nel throughput is 456ksps per channel. Internal or
external reference and clock capability offer great flexi-
bility, and ease of use. A write-only configuration regis-
ter can mask out unused channels and a shutdown
feature reduces power. A 20MHz, 12-bit, parallel data
bus outputs the conversion results. Figure 2 shows the
functional diagram of these ADCs.
Pin Description (continued)
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input RangesFigure 2. Functional Diagram
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input RangesFigure 3. Typical Bipolar Operating Circuit
MAX1304–MAX1306/MAX1308–MAX1310/MAX1312–MAX1314
8-/4-/2-Channel,12-Bit,Simultaneous-Sampling ADCs
with ±10V, ±5V, and 0 to +5V Analog Input RangesFigure 4. Typical Unipolar Operating Circuit
