MAX196EVKIT-DIP Maxim Integrated, MAX196EVKIT-DIP Datasheet - Page 2

• Manufacturer Part Number: MAX196EVKIT-DIP
• Description: Data Conversion IC Development Tools Programmers, Development Systems
• Manufacturer: Maxim Integrated
• Series: MAX196, MAX198r

Specifications of MAX196EVKIT-DIP

• Interface Type: Parallel
• Factory Pack Quantity: 1

MAX196 Evaluation Kit
The MAX196 EV kit is fully assembled and tested.
Follow these steps to verify board operation. Do not
turn on the power supply until all connections are
completed.
1) Connect a +5V supply to the pad labeled +5V, and
2) Connect ±15V supplies to the pads labeled, respec-
3) Set configuration jumpers as shown in Table 1. This
4) Apply an input signal to the “high-Z” channel 0 input
5) Turn on the power supplies.
6) Observe binary readout on the twelve LEDs.
2
_________________________Quick Start
____________________Component List
DESIGNATION
JU4, JU6–JU11
connect the ground return to the pad labeled GND.
tively, OPAMPV+ and OPAMPV-. Connect the power
supply’s common terminal to the EV kit’s GND pad.
selects channel 0 with a ±10V input range and puts
the device in no power-down/internal clock mode.
pad located at the far-right side of the board.
U3, U8, U9
_______________________________________________________________________________________
JU3, JU12
JU1, JU2,
C9–C16
D0–D11
R4–R15
C2, C4,
C3, C5
R1, R2
U4, U5
U6, U7
R16
R17
C1
C6
C7
C8
H1
U1
U2
R3
QTY
10
12
12
1
2
1
1
1
1
0
7
2
1
1
1
1
1
3
2
2
100pF ceramic capacitor
0.1µF ceramic capacitors
10µF ceramic capacitors
0.01µF ceramic capacitor
0.22µF ceramic capacitor
1µF ceramic capacitor
18-pin header
Open
2-pin jumpers
LEDs
10kΩ, 5% resistors
470kΩ, 5% resistor
620Ω, 5% resistors
10kΩ, 9-pin SIP resistor
100kΩ, 9-pin SIP resistor
Maxim MAX196BCNI
74HC74 dual flip-flop
74HC04 hex inverter
Maxim MXL1014CN quad
op amps
74HC574 octal latch
DESCRIPTION
The demo circuit is a state-machine driven by a 1kHz
system clock that generates the RD, WR, and INT puls-
es. The circuit runs continuously, writing the command
word programmed by the jumpers, and displaying the
results on the LEDs.
At power-up, R3 and C8 reset flip-flop, U2, generating a
WR pulse. On the rising edge of WR, the MAX196 latches
the command word selected by JU4–JU11. The rising
edge of the system clock sets WR high, initiating a con-
version. When the MAX196 completes the conversion, the
MAX196 drives INT low. After INT falls, RD goes low at
the next rising edge of the system clock, placing the data
onto the data bus. When RD goes low, INT goes high, so
that the next system clock cycle drives RD high. RD’s ris-
ing edge latches the data into U6 and U7. U8 and U9
drive the LED display. After RD returns high, WR goes
low, and the cycle repeats (Figure 1).
Table 1. Default Jumper Settings
Figure 1. MAX196 Stand-Alone Demo Circuit Timing Diagram
_______________Detailed Description
SYSTEM
CLOCK
WR
INT
RD
Stand-Alone Demo Circuit Operation
JU7 (RNG)
JU4 (PD1)
JU5 (PD0)
JU10 (A1)
JU11 (A0)
JU8 (BIP)
JUMPER
JU9 (A2)
JU12
JU1
JU2
JU3
t
CONV
Short (default trace)
Short (default trace)
Short (default trace)
Short (default trace)
SETTING
Open
Open
Open
Short
Short
Short
Short