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)
* 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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TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX1303AEUP
Active
TSSOP;20 pin;45 mm²
Outline Drawing: 21-0066 (PDF)
Land Pattern: 90-0116 (PDF)
Use pkgcode/variation: U20-2*
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