MAX1304ECM Maxim Integrated, MAX1304ECM Datasheet

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MAX1304ECM

Manufacturer Part Number
MAX1304ECM
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX1304ECM

Number Of Channels
8
Architecture
SAR
Conversion Rate
1075 KSPs
Resolution
12 bit
Input Type
Single-Ended
Snr
71 dB
Interface Type
Parallel
Operating Supply Voltage
2.7 V to 5.25 V, 4.75 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Package / Case
LQFP-48
Maximum Power Dissipation
1818.2 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
2.5 V
8-/4-/2-Channel, 12-Bit, Simultaneous-Sampling ADCs
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 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 LQFP
package and operates over the extended -40°C to
+85°C temperature range.
19-3052; Rev 5; 3/11
Pin Configurations appear at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX1304ECM
MAX1305ECM
MAX1306ECM
MAX1308ECM
MAX1309ECM
MAX1310ECM
MAX1312ECM
MAX1313ECM
MAX1314ECM
with ±10V, ±5V, and 0 to +5V Analog Input Ranges
SIN/COS Position Encoder
Multiphase Motor Control
Multiphase Power Monitoring
Power-Grid Synchronization
Power-Factor Monitoring
Vibration and Waveform Analysis
PART
________________________________________________________________ Maxim Integrated Products
INPUT RANGE (V) CHANNEL COUNT
General Description
0 to +5
0 to +5
0 to +5
±10
±10
±10
±5
±5
±5
Selector Guide
Applications
8
4
2
8
4
2
8
4
2
o Up to Eight Channels of Simultaneous Sampling
o Extended Input Ranges
o Fast Conversion Time
o High Throughput
o ±1 LSB INL, ±0.9 LSB DNL (max)
o 84dBc SFDR, -86dBc THD, 71dB SINAD,
o 12-Bit, 20MHz, Parallel Interface
o Internal or External Clock
o +2.5V Internal Reference or +2.0V to +3.0V
o +5V Analog Supply, +3V to +5V Digital Supply
o 48-Pin LQFP Package (7mm x 7mm Footprint)
+ Denotes a lead(Pb)-free/RoHS-compliant package.
/V denotes an automotive qualified part.
MAX1304ECM+
MAX1304ECM/V+
MAX1305ECM+
MAX1306ECM+
MAX1308ECM+
MAX1308ECM/V+
MAX1309ECM+
MAX1309ECM/V+
MAX1310ECM+
MAX1312ECM+
MAX1313ECM+
MAX1314ECM+
f
External Reference
IN
8ns Aperture Delay
100ps Channel-to-Channel T/H Match
0 to +5V (MAX1304/MAX1305/MAX1306)
-5V to +5V (MAX1308/MAX1309/MAX1310)
-10V to +10V (MAX1312/MAX1313/MAX1314)
One Channel in 0.72µs
Two Channels in 0.9µs
Four Channels in 1.26µs
Eight Channels in 1.98µs
1075ksps/Channel for One Channel
901ksps/Channel for Two Channels
680ksps/Channel for Four Channels
456ksps/Channel for Eight Channels
55mA Analog Supply Current
1.3mA Digital Supply Current
Shutdown and Power-Saving Modes
= 500kHz at 0.4dBFS
PART
Ordering Information
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
Features
PIN-PACKAGE
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
48 LQFP
1

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MAX1304ECM Summary of contents

Page 1

... Internal or External Clock o +2.5V Internal Reference or +2.0V to +3.0V External Reference o +5V Analog Supply, +3V to +5V Digital Supply 55mA Analog Supply Current 1.3mA Digital Supply Current Shutdown and Power-Saving Modes o 48-Pin LQFP Package (7mm x 7mm Footprint) PART MAX1304ECM+ MAX1304ECM/V+ MAX1305ECM+ MAX1306ECM+ MAX1308ECM+ 8 MAX1308ECM/V+ 4 MAX1309ECM+ 2 MAX1309ECM/V+ ...

Page 2

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges ABSOLUTE MAXIMUM RATINGS AVDD to AGND.........................................................-0.3V to +6V DVDD 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. ...

Page 3

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges ELECTRICAL CHARACTERISTICS (continued +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- ...

Page 4

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges ELECTRICAL CHARACTERISTICS (continued +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- ...

Page 5

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges ELECTRICAL CHARACTERISTICS (continued +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- ...

Page 6

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges ELECTRICAL CHARACTERISTICS (continued +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- ...

Page 7

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges (V = +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- devices ...

Page 8

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges (V = +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- devices ...

Page 9

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges (V = +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- devices ...

Page 10

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges (V = +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- devices ...

Page 11

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges (V = +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- devices ...

Page 12

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges (V = +5V +3V AVDD DVDD AGND C = 0.1µ 2.2µF || 0.1µF, C REF- REF+-to-REF- devices ...

Page 13

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges PIN MAX1304 MAX1305 MAX1306 MAX1308 MAX1309 MAX1310 MAX1312 MAX1313 MAX1314 14, 2, ...

Page 14

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges PIN MAX1304 MAX1305 MAX1306 MAX1308 MAX1309 MAX1310 MAX1312 MAX1313 MAX1314 24, 39 24, 39 24, 39 25, ...

Page 15

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges PIN MAX1304 MAX1305 MAX1306 MAX1308 MAX1309 MAX1310 MAX1312 MAX1313 MAX1314 ...

Page 16

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges AVDD CH0 T/H CH7 T/H MSV * REF+ COM REF- REF REF MS AGND *SWITCH CLOSED ON UNIPOLAR DEVICES, OPEN ON BIPOLAR DEVICES Figure 2. Functional ...

Page 17

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges +5V 0.1µF 0.1µF 0.1µF BIPOLAR CONFIGURATION 0.01µF 0.1µF 2.2µF 0.1µF 2.2µF 0.1µF GND BIPOLAR ANALOG INPUTS Figure 3. Typical Bipolar Operating Circuit ______________________________________________________________________________________ 1 AVDD 15 ...

Page 18

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges +5V 0.1µF 0.1µF 0.1µF 2.2µF 0.1µF 0.01µF UNIPOLAR CONFIGURATION 0.01µF 0.1µF 2.2µF 0.1µF 2.2µF 0.1µF GND UNIPOLAR ANALOG INPUTS Figure 4. Typical Unipolar Operating Circuit 18 ...

Page 19

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges MAX1304–MAX1306 MAX1308–MAX1310 MAX1312–MAX1314 AV DD OVERVOLTAGE PROTECTION CLAMP *R R1 SOURCE CH_ ANALOG UNDERVOLTAGE SIGNAL R2 PROTECTION SOURCE CLAMP V BIAS *MINIMIZE R TO AVOID GAIN ...

Page 20

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Data Throughput The data throughput ( the MAX1304–MAX1306/ TH MAX1308–MAX1310/MAX1312–MAX1314 is a function of the clock speed ( internal clock mode, f ...

Page 21

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Applications Information The bidirectional parallel digital interface allows for setting the 8-bit configuration register (see the Configuration Register section) and reading the 12-bit conversion result. The ...

Page 22

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges SAMPLE INSTANT t ACQ CONVST TRACK EOC EOLC CS* RD D0–D11 *CS CAN BE LOW AT ALL TIMES, LOW DURING THE RD CYCLES, OR THE SAME ...

Page 23

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges SAMPLE INSTANT t ACQ CONVST TRACK t CNTC 1 2 CLK EOC EOLC CS* RD D0–D11 *CS CAN BE LOW AT ALL TIMES, LOW DURING THE ...

Page 24

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges CONVST EOC ONLY LAST PULSE SHOWN EOLC CS* t CTR RD D0–D11 * CS CAN BE LOW AT ALL TIMES, LOW DURING THE RD CYCLES, OR ...

Page 25

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges CS* t ACQ CONVST CONFIGURATION REGISTER UPDATES WR CONFIGURATION REGISTER POWERS UP ONE OR MORE CHANNELS DATA D0–D7 IN CLK EOC EOLC *CS CAN BE LOW ...

Page 26

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges To avoid the timing requirements associated with pow- ering up an analog channel, force CHSHDN high. With CHSHDN high, each analog input is powered up regardless ...

Page 27

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Transfer Functions Unipolar 0 to +5V Devices Table 5 and Figure 12 show the offset binary transfer function for the MAX1304/MAX1305/MAX1306 with +5V ...

Page 28

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Bipolar ±5V Devices Table 6 and Figure 13 show the two’s complement trans- fer function for the ±5V input range MAX1308/MAX1309/ MAX1310. The FSR is four ...

Page 29

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Bipolar ±10V Devices Table 7 and Figure 14 show the two’s complement trans- fer function for the ±10V input range MAX1312/ MAX1313/MAX1314. The FSR is eight ...

Page 30

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges 3-Phase Motor Controller The MAX1304–MAX1306/MAX1308–MAX1310/MAX1312– MAX1314 are ideally suited for motor-control systems (Figure 15). The devices’ simultaneously sampled inputs eliminate the need for complicated DSP algo- ...

Page 31

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges 3-Phase Power-Monitoring System The 8-channel devices are well suited for use in 3-phase power monitoring (Figure 16). The simultane- BUFFERS AND INPUT PROTECTION ...

Page 32

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Layout, Grounding, and Bypassing For best performance use PC boards. Board layout must ensure that digital and analog signal lines are separated from each other. Do ...

Page 33

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Gain error is a figure of merit that indicates how well the slope of the actual transfer function matches the slope of the ideal transfer function. ...

Page 34

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Aperture Jitter ( the sample-to-sample variation in AJ aperture delay. Jitter is a concern when considering an ADC’s dynamic performance, e.g., SNR. To reconstruct ...

Page 35

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges TOP VIEW + AVDD 1 AGND 2 AGND 3 CH0 4 CH1 5 MSV 6 MAX1304 CH2 7 MAX1308 CH3 8 MAX1312 CH4 9 CH5 10 ...

Page 36

Simultaneous-Sampling ADCs with ±10V, ±5V, and 0 to +5V Analog Input Ranges Chip Information PROCESS: 0.6µm BiCMOS 36 ______________________________________________________________________________________ Package Information For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, ...

Page 37

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 37 © 2011 Maxim Integrated Products ...

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