The MAX1034/MAX1035 multirange, low-power, 14-bit,
successive-approximation, analog-to-digital converters
(ADCs) operate from a single +5V supply and achieve
throughput rates up to 115ksps. A separate digital supply
allows digital interfacing with 2.7V to 5.25V systems
using the SPI™-/QSPI™-/MICROWIRE™-compatible
serial interface. Partial power-down mode reduces the
supply current to 1.3mA (typ). Full power-down mode
reduces the power-supply current to 1µA (typ).
The MAX1034 provides eight (single-ended) or four (true
differential) analog input channels. The MAX1035 provides
four (single-ended) or two (true differential) analog
input channels. Each analog input channel is independently
software programmable for seven single-ended
input ranges (0 to +VREF/2, -VREF/2 to 0, 0 to +VREF, -VREF to 0, ±VREF/4, ±VREF/2, and ±VREF), and three
differential input ranges (±VREF/2, ±VREF, ±2 x VREF).
An on-chip +4.096V reference offers a small convenient
ADC solution. The MAX1034/MAX1035 also accept an
external reference voltage between 3.800V and 4.136V.
The MAX1034 is available in a 24-pin TSSOP package
and the MAX1035 is available in a 20-pin TSSOP package.
Each device is specified for operation from -40°C
to +85°C.
Key Features
Applications/Uses
Software-Programmable Input Range for Each Channel
Single-Ended Input Ranges
0 to +VREF/2, -VREF/2 to 0, 0 to +VREF, -VREF to 0, ±VREF/4, ±VREF/2, and ±VREF
Differential Input Ranges
±VREF/2, ±VREF, and ±2 x VREF
Eight Single-Ended or Four Differential Analog Inputs (MAX1034)
Four Single-Ended or Two Differential Analog Inputs (MAX1035)
±6V Overvoltage Tolerant Inputs
Internal or External Reference
115ksps Maximum Sample Rate
Single +5V Power Supply
20-/24-Pin TSSOP Package
Avionics
Data Acquisition Systems
Industrial Control Systems
Robotics
Key Specifications:
Precision ADCs (< 5Msps)
Part Number
ADC Resolution (Bits)
Input Channels
Conv. Rate (ksps)
Data Bus (Bits)
Ref. (V)
Input Range (V)
Diff. In
Supply Voltage (V)
Typ. Supply Current (mA)
Typ. Power (mW)
Standby Mode
Package
MAX1034NEW!
14
4
8
115
Serial
Ext.
Int.+4.096
±2Vref
±Vref
±Vref/2
±Vref/4
-Vref to 0
-Vref/2 to 0
0 to Vref/2
0 to Vref
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