Rainbow Electronics MAX1314 User Manual
19-3052; Rev 3; 8/04
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.
Applications
SIN/COS Position Encoder
Multiphase Motor Control
Multiphase Power Monitoring
Power-Grid Synchronization
Power-Factor Monitoring
Vibration and Waveform Analysis
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, 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 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
________________________________________________________________ Maxim Integrated Products 1
For pricing delivery, and ordering information please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Ordering Information
Pin Configurations appear at end of data sheet.
PART TEMP RANGE PIN-PACKAGE
MAX1304ECM -40°C to +85°C 48 TQFP
MAX1305ECM -40°C to +85°C 48 TQFP
MAX1306ECM -40°C to +85°C 48 TQFP
MAX1308ECM -40°C to +85°C 48 TQFP
MAX1309ECM -40°C to +85°C 48 TQFP
MAX1310ECM -40°C to +85°C 48 TQFP
MAX1312ECM -40°C to +85°C 48 TQFP
MAX1313ECM -40°C to +85°C 48 TQFP
MAX1314ECM -40°C to +85°C 48 TQFP
Selector Guide
PART
CHANNEL COUNT
MAX1304ECM 0 to +5 8
MAX1305ECM 0 to +5 4
MAX1306ECM 0 to +5 2
MAX1308ECM ±5 8
MAX1309ECM ±5 4
MAX1310ECM ±5 2
MAX1312ECM ±10 8
MAX1313ECM ±10 4
MAX1314ECM ±10 2
INPUT RANGE (V)
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
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), f
CLK
= 16.67MHz 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, TA= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +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.
AV
DD
to AGND .........................................................-0.3V to +6V
DV
DD
to 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 (DV
DD
+ 0.3V)
EOC, EOLC, RD, WR, CS to DGND.........-0.3V to (DV
DD
+ 0.3V)
CONVST, CLK, SHDN, CHSHDN to DGND ..-0.3V to (DV
DD
+ 0.3V)
INTCLK/EXTCLK to AGND.......................-0.3V to (AV
DD
+ 0.3V)
REF
MS
, REF, MSV to AGND.....................-0.3V to (AV
DD
+ 0.3V)
REF+, COM, REF- to AGND.....................-0.3V to (AV
DD
+ 0.3V)
Maximum Current into Any Pin Except AV
DD
, DVDD, AGND,
DGND ...........................................................................±50mA
Continuous Power Dissipation (T
A
= +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
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
STATIC PERFORMANCE (Note 1)
Resolution N 12 Bits
Integral Nonlinearity INL (Note 2)
LSB
Differential Nonlinearity DNL No missing codes (Note 2)
LSB
Unipolar, 0x000 to 0x001 ±3
Offset Error
Bipolar, 0xFFF to 0x000 ±3
LSB
Unipolar, between all channels ±9
Offset-Error Matching
Bipolar, between all channels ±9
LSB
Unipolar, 0x000 to 0x001 7
Offset-Error Temperature Drift
Bipolar, 0xFFF to 0x000 7
ppm/°C
Gain Error ±2
LSB
Gain-Error Matching Between all channels ±3
LSB
Gain-Error Temperature Drift 4
ppm/°C
DYNAMIC PERFORMANCE at fIN = 500kHz, A
IN
= -0.4dBFS (Note 2)
Signal-to-Noise Ratio SNR 68 71 dB
Signal-to-Noise Plus Distortion
68 71 dB
Total Harmonic Distortion THD -86 -80 dBc
Spurious-Free Dynamic Range
84 dBc
Channel-to-Channel Isolation 80 86 dB
ANALOG INPUTS (CH0 through CH7)
MAX1304/MAX1305/MAX1306 0 +5
MAX1308/MAX1309/MAX1310 -5 +5
Input Voltage V
CH
MAX1312/MAX1313/MAX1314 -10
V
±0.5 ±1.0
±0.3 ±0.9
±16
±16
±20
±20
±16
±14
+10
SINAD
SFDR
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
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), f
CLK
= 16.67MHz 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, TA= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C. See Figures 3 and 4.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX1304/MAX1305/MAX1306
MAX1308/MAX1309MAX1310
Input Resistance
(Note 3)
R
CH
MAX1312/MAX1313/MAX1314
kΩ
VCH = 0V
VCH = -5V
Input Current
(Note 3)
I
CH
mA
Input Capacitance C
CH
15 pF
TRACK/HOLD
One channel selected for conversion
Two channels selected for conversion 901
Four channels selected for conversion 680
External-Clock Throughput Rate
(Note 4)
f
TH
Eight channels selected for conversion 456
ksps
One channel selected for conversion 983
Two channels selected for conversion 821
Four channels selected for conversion 618
Internal-Clock Throughput Rate
(Note 4, Table 1)
f
TH
Eight channels selected for conversion 413
ksps
Small-Signal Bandwidth 20
MHz
Full-Power Bandwidth 20
MHz
Aperture Delay t
AD
8ns
Aperture-Delay Matching 100 ps
Aperture Jitter t
AJ
50
ps
RMS
INTERNAL REFERENCE
REF Output Voltage V
REF
V
Reference Output-Voltage
Temperature Drift
30
ppm/°C
REFMS Output Voltage
V
REF+ Output Voltage
V
COM Output Voltage
V
REF- Output Voltage
V
Differential Reference Voltage
V
REF+
V
7.58
8.66
14.26
MAX1304/MAX1305/MAX1306
MAX1308/MAX1309/MAX1310
MAX1312/MAX1313/MAX1314
VCH = +5V 0.54 0.72
-0.157 -0.12
VCH = +5V 0.29 0.39
-1.16 -0.87
VCH = +10V 0.56 0.74
= -10V -1.13 -0.85
V
CH
1075
V
REFMS
V
REF+
V
COM
V
REF-
V
-
REF
2.475 2.500 2.525
2.475 2.500 2.525
3.850
2.600
1.350
2.500
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
4 _______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
EXTERNAL REFERENCE (REF and REFMS are externally driven)
REF Input Voltage Range V
REF
2.0 2.5 3.0 V
REF Input Resistance R
REF
(Note 5) 5 kΩ
REF Input Capacitance 15 pF
REFMS Input Voltage Range
2.0 2.5 3.0 V
REFMS Input Resistance
(Note 6) 5 kΩ
REFMS Input Capacitance 15 pF
REF+ Output Voltage
V
REF
= +2.5V
V
COM Output Voltage
V
REF
= +2.5V
V
REF- Output Voltage
V
REF
= +2.5V
V
Differential Reference Voltage
V
REF+
V
REF
= +2.5V
V
DIGITAL INPUTS (D0–D7, RD, WR, CS, CLK, SHDN, CHSHDN, CONVST)
Input-Voltage High V
IH
0.7 x DV
DD
V
Input-Voltage Low V
IL
V
Input Hysteresis 20 mV
Input Capacitance C
IN
15 pF
Input Current I
IN
VIN = 0 or DV
DD
±1 µA
CLOCK-SELECT INPUT (INTCLK/EXTCLK)
Input-Voltage High V
IH
0.7 x AV
DD
V
Input-Voltage Low V
IL
V
DIGITAL OUTPUTS (D0–D11, EOC, EOLC)
Output-Voltage High V
OHISOURCE
= 0.8mA, Figure 1 DV
DD
- 0.6 V
Output-Voltage Low V
OLISINK
= 1.6mA, Figure 1 0.4 V
RD = high or CS = high
1µA
D 0–D 11 Tr i - S tate Outp ut
C ap aci tance
RD = high or CS = high 15 pF
POWER SUPPLIES
Analog Supply Voltage
V
Digital Supply Voltage
V
MAX1304/MAX1305/MAX1306,
all channels selected
55 60
MAX1308/MAX1309/MAX1310,
all channels selected
54 60
Analog Supply Current
MAX1312/MAX1313/MAX1314,
all channels selected
54 60
mA
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), f
CLK
= 16.67MHz 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, TA= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C. See Figures 3 and 4.)
V
REFMS
R
REFMS
V
REF+
V
V
COM
REF-
V
-
REF
3.850
2.600
1.350
2.500
0.02
0.3 x DV
0.3 x AV
DD
DD
D0–D11 Tri-State Leakage Current
0.06
AV
DD
DV
DD
I
AVDD
4.75 5.25
2.70 5.25
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
_______________________________________________________________________________________ 5
PARAMETER
CONDITIONS
MAX1304/MAX1305/MAX1306,
all channels selected
1.3 2.6
MAX1308/MAX1309/MAX1310,
all channels selected
1.3 2.6
Digital Supply Current
(C
LOAD
= 100pF) (Note 7)
I
DVDD
MAX1312/MAX1313/MAX1314,
all channels selected
1.3 2.6
mA
SHDN = DVDD, VCH = float 0.6 10
Shutdown Current
(Note 8)
I
DVDD
SHDN = DVDD, RD = WR = high
1
µA
Power-Supply Rejection Ratio PSRR AVDD = +4.75V to +5.25V 50 dB
TIMING CHARACTERISTICS (Figure 1)
Internal clock, Figure 7 800
ns
Time to First Conversion Result t
CONV
External clock, Figure 8 12
CLK
Internal clock, Figure 7 200
ns
Time to Subsequent Conversions t
NEXT
External clock, Figure 8 3
CLK
CONVST Pulse-Width Low
(Acquisition Time)
t
ACQ
(Note 9) Figures 6–10 0.1
µs
CS Pulse Width t
CS
Figure 6 30 ns
RD Pulse-Width Low t
RDL
Figures 7, 8, 9 30 ns
RD Pulse-Width High t
RDH
Figures 7, 8, 9 30 ns
WR Pulse-Width Low t
WRL
Figure 6 30 ns
CS to WR t
CTW
Figure 6 (Note 10) ns
WR to CS t
WTC
Figure 6 (Note 10) ns
CS to RD t
CTR
Figures 7, 8, 9 (Note 10) ns
RD to CS t
RTC
Figures 7, 8, 9 (Note 10) ns
Data Access Time
(RD Low to Valid Data)
t
ACC
Figures 7, 8, 9 30 ns
Bus Relinquish Time (RD High) t
REQ
Figures 7, 8, 9 5 30 ns
CLK Rise to EOC Delay t
EOCD
Figure 8 20 ns
CLK Rise to EOLC Fall Delay
Figure 8 20 ns
CONVST Fall to EOLC Rise Delay
Figures 7, 8, 9 20 ns
Internal clock, Figure 7 50 ns
EOC Pulse Width t
EOC
External clock, Figure 8 1
CLK
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), f
CLK
= 16.67MHz 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, TA= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C. See Figures 3 and 4.)
SYMBOL
I
AVDD
MIN TYP MAX UNITS
0.02
900
225
1000.0
Cycles
Cycles
t
EOLCD
t
CVEOLCD
Cycle
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
6 _______________________________________________________________________________________
Note 1: For the MAX1304/MAX1305/MAX1306, V
IN
= 0 to +5V. For the MAX1308/MAX1309/MAX1310, VIN= -5V to +5V. For the
MAX1312/MAX1313/MAX1314, V
IN
= -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 V
CH
within the input voltage range.
Note 4: Throughput rate is given per channel. Throughput rate is a function of clock frequency (f
CLK
). The external clock through-
put rate is specified with f
CLK
= 16.67MHz and the internal clock throughput rate is specified with f
CLK
= 15MHz. See the
Data Throughput section 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 V
REF
within the input voltage range.
Note 6: The REF
MS
input resistance is terminated to an internal +2.5V bias point (Figure 2). Calculate the REFMSinput current using:
for V
REFMS
within 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: CS to WR and CS to RD are 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 EOLC to a maximum of 1ms.
I
VV
R
REFMS
REFMS
REFMS
=
− 25.
I
VV
R
REF
REF
REF
=
− 25.
I
VV
R
CH
CH BIAS
CH
_
_
_
=
−
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input-Data Setup Time t
DTW
Figure 6 10 ns
Input-Data Hold Time t
WTD
Figure 6 10 ns
External CLK Period t
CLK
Figures 8, 9
µs
External CLK High Period t
CLKH
Logic sensitive to rising edges,
Figures 8, 9
20 ns
External CLK Low Period t
CLKL
Logic sensitive to rising edges,
Figures 8, 9
20 ns
External Clock Frequency f
CLK
(Note 11) 0.1 20
MHz
Internal Clock Frequency f
INT
15
MHz
CONVST High to CLK Edge t
CNTC
Figures 8, 9 20 ns
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipo-
lar devices), f
CLK
= 16.67MHz 50% duty cycle, INTCLK/EXTCLK = AGND (external clock), SHDN = DGND, TA= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C. See Figures 3 and 4.)
0.05 10.00
Typical Operating Characteristics
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), f
CLK
= 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
_______________________________________________________________________________________ 7
INTEGRAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX1304 toc01
DIGITAL OUTPUT CODE
INL (LSB)
358430722048 25601024 1536512
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
04096
DIFFERENTIAL NONLINEARITY
vs. DIGITAL OUTPUT CODE
MAX1304 toc02
DIGITAL OUTPUT CODE
DNL (LSB)
358430722048 25601024 1536512
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
04096
MAX1304 toc03
AVDD (V)
OFFSET ERROR (LSB)
5.25.15.04.94.8
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1.0
-1.0
4.7 5.3
OFFSET ERROR
vs. ANALOG SUPPLY VOLTAGE
OFFSET ERROR
vs. TEMPERATURE
MAX1304 toc04
TEMPERATURE (°C)
OFFSET ERROR (LSB)
6035-15 10
-12
-8
-4
0
4
8
12
16
-16
-40 85
MAX1304 toc05
AVDD (V)
GAIN ERROR (LSB)
5.25.15.04.94.8
-4
-3
-2
-1
0
1
-5
4.7 5.3
GAIN ERROR
vs. ANALOG SUPPLY VOLTAGE
GAIN ERROR
vs. TEMPERATURE
MAX1304 toc06
TEMPERATURE (°C)
GAIN ERROR (LSB)
6035-15 10
-12
-8
-4
0
4
8
12
16
-16
-40 85
Typical Operating Characteristics (continued)
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), f
CLK
= 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
8 _______________________________________________________________________________________
OUTPUT HISTOGRAM (DC INPUT)
MAX1304 toc10
DIGITAL OUTPUT CODE
COUNTS
2048204720462045
1000
2000
3000
4000
5000
6000
0
2044
00
1084
5497
1611
SMALL-SIGNAL BANDWIDTH
vs. ANALOG INPUT FREQUENCY
MAX1304 toc07
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
101
-10
-8
-6
-4
-2
0
2
-12
0.1 100
AIN = -20dBFS
LARGE-SIGNAL BANDWIDTH
vs. ANALOG INPUT FREQUENCY
MAX1304 toc08
ANALOG INPUT FREQUENCY (MHz)
GAIN (dB)
101
-10
-8
-6
-4
-2
0
2
-12
0.1 100
AIN = -0.5dBFS
FFT PLOT
(2048-POINT DATA RECORD)
MAX1304 toc09
FREQUENCY (kHz)
AMPLITUDE (dBFS)
300
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-110
0
100 200 400 500
fTH = 1.04167Msps
f
IN
= 500kHz
A
IN
= -0.05dBFS
SNR = 70.7dB
SINAD = 70.6dB
THD = -87.5dBc
SFDR = 87.1dBc
Typical Operating Characteristics (continued)
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), f
CLK
= 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
_______________________________________________________________________________________ 9
-100
-95
-90
-85
-80
-75
-70
-65
-60
05101520 25
TOTAL HARMONIC DISTORTION
vs. CLOCK FREQUENCY
MAX1304 toc13
f
CLK
(MHz)
THD (dBc)
60
65
70
75
80
85
90
95
100
051015 20 25
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK FREQUENCY
MAX1304 toc14
f
CLK
(MHz)
SFDR (dBc)
60
66
64
62
68
70
72
74
76
78
80
0105152025
SIGNAL-TO-NOISE RATIO
vs. CLOCK FREQUENCY
MAX1304 toc11
f
CLK
(MHz)
SNR (dB)
60
66
64
62
68
70
72
74
76
78
80
0105152025
SIGNAL-TO-NOISE PLUS DISTORTION
vs. CLOCK FREQUENCY
MAX1304 toc12
f
CLK
(MHz)
SINAD (dB)
Typical Operating Characteristics (continued)
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), f
CLK
= 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
10 ______________________________________________________________________________________
SIGNAL-TO-NOISE RATIO
vs. REFERENCE VOLTAGE
MAX1304 toc15
V
REF
(V)
SNR (dB)
2.82.62.42.2
66
67
68
69
70
71
72
73
74
75
65
2.0 3.0
SIGNAL-TO-NOISE PLUS DISTORTION
vs. REFERENCE VOLTAGE
MAX1304 toc16
V
REF
(V)
SINAD (dB)
2.82.62.42.2
66
67
68
69
70
71
72
73
74
75
65
2.0 3.0
TOTAL HARMONIC DISTORTION
vs. REFERENCE VOLTAGE
MAX1304 toc17
V
REF
(V)
THD (dBc)
2.82.62.42.2
-88
-86
-84
-82
-80
-78
-76
-74
-72
-70
-90
2.0 3.0
SPURIOUS-FREE DYNAMIC RANGE
vs. REFERENCE VOLTAGE
MAX1304 toc18
V
REF
(V)
SFDR (dBc)
2.82.62.42.2
75
80
85
90
95
100
70
2.0 3.0
Typical Operating Characteristics (continued)
(AVDD= +5V, DVDD= +3V, AGND = DGND = 0, V
REF
= V
REFMS
= +2.5V (external reference), C
REF
= C
REFMS
= 0.1µF, C
REF+
=
C
REF-
= 0.1µF, C
REF+-to-REF-
= 2.2µF || 0.1µF, C
COM
= 2.2µF || 0.1µF, C
MSV
= 2.2µF || 0.1µF (unipolar devices), MSV = AGND (bipolar
devices), f
CLK
= 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
______________________________________________________________________________________ 11
DIGITAL SUPPLY CURRENT
vs. DIGITAL SUPPLY VOLTAGE
MAX1304 toc20
DVDD (V)
I
DVDD
(mA)
5.04.54.03.53.0
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0.6
2.5 5.5
TA = +85°C
TA = +25°C
TA = -40°C
C
LOAD
= 50pF
MAX1304 toc21
AVDD (V)
I
AVDD
(nA)
5.25.15.04.94.8
520
540
560
580
600
620
640
660
680
700
500
4.7 5.3
ANALOG SHUTDOWN CURRENT
vs. ANALOG SUPPLY VOLTAGE
DIGITAL SHUTDOWN CURRENT
vs. DIGITAL SUPPLY VOLTAGE
MAX1304 toc22
DVDD (V)
I
DVDD
(nA)
5.04.54.03.53.0
12
14
16
18
20
22
10
2.5 5.5
ANALOG SUPPLY CURRENT
vs. NUMBER OF CHANNELS SELECTED
MAX1304 toc23
NUMBER OF CHANNELS SELECTED
I
AVDD
(mA)
87654321
40
35
45
50
55
60
30
0
CHSHDN = 0
ANALOG SUPPLY CURRENT
vs. ANALOG SUPPLY VOLTAGE
MAX1304 toc19
AVDD (V)
I
AVDD
(mA)
5.25.15.04.94.8
52
53
54
55
56
57
51
4.7 5.3
TA = +85°C
TA = +25°C
TA = -40°C
DIGITAL SUPPLY CURRENT
vs. NUMBER OF CHANNELS SELECTED
MAX1304 toc24
NUMBER OF CHANNELS SELECTED
I
DVDD
(mA)
87654321
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.9
1.0
0.1
0
CHSHDN = 0
Loading...