The MAX1302/MAX1303 multirange, low-power, 16-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 MAX1302 provides eight (single-ended) or four (true differential) analog input channels. The MAX1303 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 MAX1302/MAX1303 also accept an external reference voltage between 3.800V and 4.136V.
The MAX1302 is available in a 24-pin TSSOP package and the MAX1303 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 (MAX1302)
Four Single-Ended or Two Differential Analog Inputs (MAX1303)
±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
MAX1302NEW!
16
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
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices:
1-6
of
6
MAX1303
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX1303AEUP
TSSOP;20 pin;45 mm²
Outline Drawing: 21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-2*
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