MAX1011EVKIT Maxim Integrated Products, MAX1011EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX1011EVKIT
• Description: Power Management Modules & Development Tools
• Manufacturer: Maxim Integrated Products

Specifications of MAX1011EVKIT

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5) Connect a 250mVp-p, 20MHz sine-wave source to
6) Connect a logic analyzer to connector J1 to monitor
7) Turn on all power supplies and signal sources.
8) Observe the digitized analog input signals with the
The MAX1011 EV kit contains several jumpers that con-
trol board and part options. The following sections
describe the different jumpers and their purposes.
Table 1 lists the jumpers on the EV kit and their default
positions.
The MAX1011 requires a +5V at approximately 37mA for
the analog V
jumper sites JU1, JU2, and JU6 and can be removed to
sense device power-supply currents with an ammeter.
The MAX1011 requires +3.3V for the V
current requirement from the power supply is a function
of the sampling clock and analog input frequencies, as
well as the capacitive loading on the digital outputs.
With 15pF loads and a 20MHz analog input frequency
sampled at 90Msps, the current draw is approximately
8.5mA.
The analog inputs to the ADC are provided through
BNC connectors IN+, and IN-. The connectors are ter-
minated with 49.9Ω to ground and are AC coupled to
the converter’s analog inputs, which are internally self-
biased at 2.35V DC. A typical application circuit drives
the IN+ noninverting analog input using AC-coupled
signals. The nominal 20kΩ input resistance of the ana-
MAX1011 Evaluation Kit
Table 1. EV Kit Jumpers and Default
Positions
2
_______________Detailed Description
JUMPER(S)
JU1, JU2,
the analog input at BNC J3. The analog input is ter-
minated in 50Ω (R4).
the digital outputs.
logic analyzer.
JU3, JU4
_______________________________________________________________________________________
JU6
JU5
Analog Supply Power Requirements
CC
Power-supply current-
sense ports
Offset-correction
amplifier enabled
ADC full-scale range
selection
supply. 0Ω resistors are installed at
FUNCTION
Digital Outputs Supply
EV Kit Jumpers
Analog Inputs
CCO
Shorted with 0Ω
POSITION
DEFAULT
resistors
supply. The
Open
Open
log inputs, plus the 0.1µF AC-coupling capacitor value,
sets the low-frequency corner at approximately 80Hz.
You can drive the analog inputs either single-ended or
differentially using AC- or DC-coupled inputs. Either the
inverting or the noninverting input can be driven single-
ended. If the inverting input is driven, then the digital
output codes are inverted (complemented). Refer to the
MAX1011 data sheet for typical circuits.
The single GAIN-select pin on the MAX1011 controls
the full-scale input range. Jumper JU5 is used to manu-
ally select the desired gain range as shown in Table 2.
The EV kits are shipped with the mid-gain range select-
ed (jumper pins open).
Table 3 lists the possible input-drive combinations
for the mid-gain (250mVp-p) full-scale range selection.
Drive levels are referenced to the open-circuit,
common-mode voltage of the analog inputs (typically
Table 2. Gain-Selection Jumper JU5
Settings
Table 3. Typical Input-Drive Requirements
for Mid-Gain
JU5 SETTING
INPUT DRIVE
Single-Ended
Single-Ended
Noninverting
Differential
Inverting
JU5
1
2
3
JU5
JU5
1
2
3
1
2
3
Open Circuit
Open Circuit
Open Circuit
+62.5mV
MAX1011 GAIN
+125mV
-62.5mV
CONTROL PIN
-125mV
IN+
0
0
OPEN
GND
V
CC
ADC Gain Selection
Open Circuit
Open Circuit
Open Circuit
+62.5mV
+125mV
-62.5mV
-125mV
IN-
0
0
High-gain, 125mVp-p
Low-gain, 500mVp-p
Mid-gain, 250mVp-p
ADC GAIN RANGE
OUTPUT
111111
100000
000000
000000
011111
111111
111111
100000
000000
CODE