MAX1061 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – 250ksps, +3V, 8-/4-Channel, 10-Bit ADCs with +2.5V Reference and Parallel Interface

19-2724; Rev 1; 3/09
250ksps, +3V, 8-/4-Channel, 10-Bit ADCs
with +2.5V Reference and Parallel Interface
General Description
The MAX1061/MAX1063 low-power, 10-bit analog-to-
digital converters (ADCs) feature a successive-approxi-
mation ADC, automatic power-down, fast wake-up
(2µs), an on-chip clock, +2.5V internal reference, and a
high-speed, byte-wide parallel interface. They operate
with a single +3V analog supply and feature a V_LOGIC
pin that allows them to interface directly with a +1.8V to
+3.6V digital supply.
Power consumption is only 5.7mW (V_DD = V_LOGIC) at
the maximum sampling rate of 250ksps. Two software-
selectable power-down modes enable the MAX1061/
MAX1063 to be shut down between conversions;
accessing the parallel interface returns them to normal
operation. Powering down between conversions can
cut supply current to under 10µA at reduced sampling
rates.
Both devices offer software-configurable analog inputs
for unipolar/bipolar and single-ended/pseudo-differen-
tial operation. In single-ended mode, the MAX1061 has
eight input channels and the MAX1063 has four input
channels (four and two input channels, respectively,
when in pseudo-differential mode).
Excellent dynamic performance and low power, com-
bined with ease of use and small package size, make
these converters ideal for battery-powered and data-
acquisition applications or for other circuits with demand-
ing power consumption and space requirements.
The MAX1061 is available in a 28-pin QSOP package,
while the MAX1063 is available in a 24-pin QSOP. For
pin-compatible +5V, 10-bit versions, refer to the
MAX1060/MAX1064 data sheet.
Industrial Control Systems
Applications
Data Logging
Energy Management
Patient Monitoring
Data-Acquisition Systems Touch Screens
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
INL
(LSB)
MAX1061ACEI+ 0°C to +70°C 28 QSOP
±0.5
MAX1061BCEI+ 0°C to +70°C 28 QSOP
±1
MAX1061AEEI+ -40°C to +85°C 28 QSOP
±0.5
MAX1061BEEI+ -40°C to +85°C 28 QSOP
±1
+Denotes a lead(Pb)-free/RoHS-compliant package.
Ordering Information continued at end of data sheet.
Features
♦ 10-Bit Resolution, ±0.5 LSB Linearity
♦ +3V Single-Supply Operation
♦ User-Adjustable Logic Level (+1.8V to +3.6V)
♦ Internal +2.5V Reference
♦ Software-Configurable, Analog Input Multiplexer
8-Channel Single Ended/
4-Channel Pseudo-Differential (MAX1061)
4-Channel Single Ended/
2-Channel Pseudo-Differential (MAX1063)
♦ Software-Configurable, Unipolar/Bipolar Inputs
♦ Low Power
1.9mA (250ksps)
1.0mA (100ksps)
400µA (10ksps)
2µA (Shutdown)
♦ Internal 3MHz Full-Power Bandwidth Track/Hold
♦ Byte-Wide Parallel (8 + 2) Interface
♦ Small Footprint: 28-Pin QSOP (MAX1061)
24-Pin QSOP (MAX1063)
Pin Configurations
TOP VIEW
HBEN 1
D7 2
D6 3
D5 4
D4 5
D3 6
MAX1063
24 V_LOGIC
23 V_DD
22 REF
21 REFADJ
20 GND
19 COM
D2 7
D1/D9 8
18 CH0
17 CH1
D0/D8 9
INT 10
RD 11
WR 12
16 CH2
15 CH3
14 CS
13 CLK
QSOP
Pin Configurations continued at end of data sheet.
Typical Operating Circuits appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.