MAX1193EVKIT Datasheet, PDF (5/13 Pages) Maxim Integrated Products – MAX1193 Evaluation Kit

MAX1193 Evaluation Kit
Table 1. Single-Ended/Differential, AC-/DC-Coupled Jumper Configuration (continued)
JUMPER SHUNT POSITION
PIN CONNECTION
EV KIT OPERATION
JU3
1 and 2
INB+ pin DC-coupled to SMA connector
S/E_INB+ through R13 and R6
Analog input signal is applied to channel B.
Differential input, DC-coupled.
JU4
Not installed
INB- pin DC-coupled to SMA connector
S/E_INB- through R14
• R6 shorted (0Ω)
• C3 opened (removed)
JU6
Not installed
INB+ pin assumes the DC offset from the • R3 opened (removed)
analog input source
Table 2. Power-Down/Standby/Idle/Operating Mode Configurations
JUMPER
JU7
JU8
JU7
JU8
JU7
JU8
JU7
JU8
SHUNT POSITION
1 and 2
1 and 2
1 and 2
2 and 3
2 and 3
1 and 2
2 and 3
2 and 3
PIN CONNECTION
PD0 connected to OGND
PD1 connected to OGND
PD0 connected to OGND
PD1 connected to VODUT
PD0 connected to VODUT
PD1 connected to OGND
PD0 connected to VODUT
PD1 connected to VODUT
JU7, JU8
None
PD0, PD1 pads connected to external
control source (TTL/CMOS compatible)
EV KIT OPERATION
MAX1193 in power-down mode—ADC off, Ref off,
output Three-stated
MAX1193 in standby mode—ADC off, Ref on,
output Three-stated
MAX1193 in idle mode—ADC on, Ref on,
output Three-stated
MAX1193 in operating mode—ADC on, Ref on,
output enabled
PD0, PD1 = 00; power-down mode
PD0, PD1 = 01; standby mode
PD0, PD1 = 10; idle mode
PD0, PD1 = 11; operting mode
Power-Down/Standby/
Idle/Operating Modes
The MAX1193 EV kit also features jumpers that allow
the user to enable or disable certain functions of the
data converter. Jumpers JU7 and JU8 control the
power-down, standby, idle, and operating modes of the
MAX1193 EV kit. See Table 2 for jumper settings.
Reference Modes
The MAX1193 EV kit provides three modes of operation
for the reference: internal reference, buffered external
reference, and unbuffered external reference modes. In
internal reference mode, the REFIN pad is connected
to VADUT. In buffered external reference mode, an
external user-provided reference voltage of 1.024V may
be connected at the REFIN pad. In unbuffered external
reference mode, REFIN is connected to GND, and
three external reference voltages should be used to
drive REFP, REFN, and COM. Jumper JU11 selects the
reference modes of the MAX1193 EV kit. See Table 3
for jumper settings.
Table 3. Reference Modes Configuration
(Jumper JU11)
SHUNT
POSITION
1 and 2
REFIN PIN
CONNECTION
Connected to
VADUT
EV KIT OPERATION
Internal reference mode.
V_REF = V_REFP - V_REFN =
0.512V
2 and 3
None
Connected to GND
Unbuffered external
reference mode.
REFP, REFN, COM pins
driven by external sources
Connected to
external reference
source (1.024V)
Buffered external
reference mode.
V_REF = V_REFP - V_REFN =
0.512V
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