MAX115EVKIT Maxim Integrated Products, MAX115EVKIT Datasheet - Page 6

• Manufacturer Part Number: MAX115EVKIT
• Description: EVAL KIT FOR MAX115
• Manufacturer: Maxim Integrated Products

Specifications of MAX115EVKIT

• 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

2x4-Channel, Simultaneous-Sampling
12-Bit ADCs
6
Figure 1. Load Circuit for Access Time and Bus Relinquish Time
______________________________________________________________Pin Description
_______________________________________________________________________________________
19, 20
21, 22
23, 24
32, 33
34, 35
8, 36
9–16
PIN
1, 2
3, 4
17
18
25
26
27
28
29
30
31
5
6
7
TO OUTPUT
120pF
PIN
D1/A3, D0/A2
CH2B, CH2A
CH1B, CH1A
CH4A, CH4B
CH3A, CH3B
CONVST
REFOUT
D11–D4
D3, D2
NAME
DGND
A1, A0
REFIN
AGND
AV
DV
AV
CLK
WR
INT
RD
CS
DD
DD
SS
1.6mA
1.0mA
Channel 2 Multiplexed Inputs (single-ended)
Channel 1 Multiplexed Inputs (single-ended)
Analog Supply Voltage
External reference input/internal reference output. Bypass with a 0.1µF capacitor to AGND.
Reference-Buffer output. Bypass with a 4.7µF capacitor to AGND.
Analog ground. Both pins must be connected to ground.
Data Bits. D11 = MSB.
Digital Supply Voltage
Digital Ground
Data Bits
Bidirectional Data Bits/Address Bits
Address Bits
Clock Input (duty cycle must be 30% to 70%). Connect CLK to DV
Chip-Select Input (active-low)
Write Input (active-low)
Read Input (active-low)
Conversion-Start input. Rising edge initiates sampling and conversion sequence.
Interrupt output. Falling edge indicates the end of a conversion sequence.
Analog Supply Voltage
Channel 4 Multiplexed Inputs (single-ended)
Channel 3 Multiplexed Inputs (single-ended)
1.6V
The MAX115/MAX116 use a successive-approximation
conversion technique and four simultaneous-sampling
track/hold (T/H) amplifiers to convert analog signals into
12-bit digital outputs. Each T/H has two multiplexed
inputs, allowing a total of eight inputs. Each T/H output
is converted and stored in memory to be accessed
sequentially by the parallel interface with successive
read cycles. The MAX115/MAX116 internal micro-
sequencer can be programmed to digitize one, two,
three, or four inputs sampled simultaneously from either
of the two banks of four inputs (Figure 2). The
MAX115/MAX116 can operate with either an external or
internal clock. For internal operation, connect CLK to
DV
_______________Detailed Description
DD
.
FUNCTION
DD
to activate internal clock.