MAX115EVB16 Maxim Integrated Products, MAX115EVB16 Datasheet

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MAX115EVB16

Manufacturer Part Number
MAX115EVB16
Description
EVAL KIT FOR MAX115
Manufacturer
Maxim Integrated Products
Datasheets

Specifications of MAX115EVB16

Number Of Adc's
1
Number Of Bits
12
Sampling Rate (per Second)
116k
Data Interface
Parallel
Inputs Per Adc
8 Single Ended
Input Range
±5 V
Power (typ) @ Conditions
17mW @ 116kSPS
Voltage Supply Source
Analog and Digital
Operating Temperature
0°C ~ 70°C
Utilized Ic / Part
MAX115
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
________________General Description
The MAX115/MAX116 are high-speed, multichannel,
12-bit data-acquisition systems (DAS) with simultane-
ous track/holds (T/Hs). These devices contain a 12-bit,
2µs, successive-approximation analog-to-digital con-
verter (ADC), a +2.5V reference, a buffered reference
input, and a bank of four simultaneous-sampling T/H
amplifiers that preserve the relative phase information
of the sampled inputs. The MAX115/MAX116 have two
multiplexed inputs for each T/H, allowing a total of eight
inputs. In addition, the converter is overvoltage tolerant
to ±17V. A fault condition on any channel will not dam-
age the IC. Available input ranges are ±5V (MAX115)
and ±2.5V (MAX116).
The parallel interface’s data access and bus release
timing specifications are compatible with most popular
digital signal processors and 16-bit/32-bit microproces-
sors. The MAX115/MAX116 conversion results can be
accessed without resorting to wait-states.
________________________Applications
19-1928; Rev 0; 1/01
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
TOP VIEW
Multiphase Motor Control
Power-Grid Synchronization
Power-Factor Monitoring
Digital Signal Processing
Vibration and Waveform Analysis
D11 (MSB)
REFOUT
DGND
REFIN
AGND
CH2B
CH2A
CH1B
CH1A
DV
AV
D10
DD
D9
D8
D7
D6
D5
D4
DD
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
________________________________________________________________ Maxim Integrated Products
MAX115
MAX116
SSOP
2x4-Channel, Simultaneous-Sampling
Pin Configuration
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
AGND
CH3B
CH3A
CH4B
CH4A
AV
INT
CONVST
RD
WR
CS
CLK
A0
A1
D0/A2 (LSB)
D1/A3
D2
D3
SS
o Four Simultaneous-Sampling T/H Amplifiers with
o 2µs Conversion Time per Channel
o Throughput: 390ksps (1 Channel)
o Input Range: ± 5V (MAX115)
o Fault-Protected Input Multiplexer (±17V)
o Internal +2.5V or External Reference Operation
o Programmable On-Board Sequencer
o High-Speed Parallel DSP Interface
o Internal 10MHz Clock
____________________________Features
MAX115CAX
MAX115EAX
MAX116CAX
MAX116EAX
Two Multiplexed Inputs (Eight Single-Ended
Inputs Total)
PART
0.1µF
0.1µF
0.1µF
4.7µF
+5V
-5V
16MHz
Typical Operating Circuit
218ksps (2 Channels)
152ksps (3 Channels)
116ksps (4 Channels)
± 2.5V (MAX116)
AV
AGND
AV
REFIN
REFOUT
CLK
CH1A
CH1B
CH2A
CH2B
CH3A
CH3B
CH4A
CH4B
-40°C to +85°C
-40°C to +85°C
DD
SS
TEMP. RANGE
0°C to +70°C
0°C to +70°C
Ordering Information
CONVST
CONTROL INTERFACE
12-Bit ADCs
MAX115
MAX116
INT
CS
RD
D0/A2
D1/A3
WR
DGND
DV
D10
D11
PIN-PACKAGE
36 SSOP
36 SSOP
36 SSOP
36 SSOP
D2
D3
D4
D5
D6
D7
D8
D9
DD
A0
A1
+5V
0.1µF
1

Related parts for MAX115EVB16

MAX115EVB16 Summary of contents

Page 1

... DGND 18 SSOP ________________________________________________________________ Maxim Integrated Products For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. ____________________________Features o Four Simultaneous-Sampling T/H Amplifiers with Two Multiplexed Inputs (Eight Single-Ended Inputs Total) o 2µs Conversion Time per Channel o Throughput: 390ksps (1 Channel) o Input Range: ± ...

Page 2

Simultaneous-Sampling 12-Bit ADCs ABSOLUTE MAXIMUM RATINGS AV to AGND ...........................................................-0. AGND ............................................................0. DGND ...........................................................-0. AGND to DGND .......................................................-0.3V to 0.3V CH_ _ to AGND....................................................................±17V REFIN, REFOUT ...

Page 3

Simultaneous-Sampling ELECTRICAL CHARACTERISTICS (continued) (AV = +5V ±5 -5V ±5 from REFOUT to AGND, 0.1µF capacitor from REFIN to AGND, f unless otherwise noted. Typical values are at T PARAMETER SYMBOL ANALOG INPUT Input ...

Page 4

Simultaneous-Sampling 12-Bit ADCs ELECTRICAL CHARACTERISTICS (continued) (AV = +5V ±5 -5V ±5 from REFOUT to AGND, 0.1µF capacitor from REFIN to AGND, f unless otherwise noted. Typical values are at T PARAMETER SYMBOL DIGITAL ...

Page 5

Simultaneous-Sampling TIMING CHARACTERISTICS (continued) (See Figure +5V -5V unless otherwise noted.) PARAMETER SYMBOL Conversion Time t CONV Conversion Rate Startup Time Note +5V -5V ...

Page 6

Simultaneous-Sampling 12-Bit ADCs ______________________________________________________________Pin Description PIN NAME 1, 2 CH2B, CH2A Channel 2 Multiplexed Inputs (single-ended CH1B, CH1A Channel 1 Multiplexed Inputs (single-ended Analog Supply Voltage DD 6 REFIN External reference input/internal reference output. Bypass ...

Page 7

Simultaneous-Sampling CH1A A MUX T/H B CH1B CH2A A T/H MUX B CH2B CH3A A T/H MUX B CH3B CH4A A MUX T/H B CH4B AV DD AGND AV SS MAX115 MAX116 Figure 2. Functional Diagram _______________________________________________________________________________________ BANDGAP REFERENCE ...

Page 8

Simultaneous-Sampling 12-Bit ADCs R1 R2 CH_A S1A S1B R2 CH_B S3B MAX115 ∞ 5kΩ MAX116 5kΩ ∞ Figure 3. Equivalent ...

Page 9

Simultaneous-Sampling t CW CONVST INT t CWH t CWS DATA DATA Figure 4. Timing Diagram (LSB Figure 5. Programming a Four-Channel Conversion, Input ...

Page 10

Simultaneous-Sampling 12-Bit ADCs Table 1. Modes of Operation ...

Page 11

Simultaneous-Sampling REFOUT 7 TO DAC REFIN 6 MAX115 MAX116 10k 2.5V Figure 7. External Reference Internal and External Reference The MAX115/MAX116 can be used with an internal or external reference voltage. An external +2.5 reference ...

Page 12

Simultaneous-Sampling 12-Bit ADCs 1/2 HC74 PRE CLR V CC INT EXTERNAL CLOCK V Figure 9. Output Demultiplexer Circuit (LSB) values. Output coding is two-complement binary with 1LSB = 2.44mV for the MAX115 ...

Page 13

Simultaneous-Sampling EXTERNAL SETPOINTS CONTROLLER 12 DSP µC Figure 10. Vector Motor Control part of the current (torque) feedback loop. The MAX115/MAX116 digitize the currents and deliver raw data to the following DSP and controller stages, where the vector processing ...

Page 14

... 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2001 Maxim Integrated Products ...

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