MAX1358, MAX1359, MAX1360 16-Bit Data-Acquisition Systems with ADC, DACs, UPIOs, RTC, Voltage Monitors, and Temp Sensor

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The MAX1358/MAX1359/MAX1360 smart data-acquisition systems (DAS) are each based on a 16-bit, sigma-delta analog-to-digital converter (ADC) and system-support functionality for a microprocessor (µP)-based system. These devices integrate an ADC, DACs, operational amplifiers, internal 1.25V/2.048V/2.5V selectable reference, temperature sensors, analog switches, a 32kHz oscillator, a real-time clock (RTC) with alarm, a high-frequency-locked loop (FLL) clock, four user-programmable I/Os, an interrupt generator, and 1.8V and 2.7V voltage monitors in a single chip.

The MAX1358/MAX1359/MAX1360 have dual 10:1 differential input multiplexers (muxes) that accept signal levels from 0 to AV_DD. An on-chip 1x to 8x programmable- gain amplifier (PGA) measures low-level signals and reduces external circuitry required.

The MAX1358/MAX1359/MAX1360 operate from a single +1.8V to +3.6V supply and consume only 1.4mA in normal mode and only 6.1µA in sleep mode.

The MAX1358 has two DACs with one uncommited op amp; the MAX1359 has one DAC with two uncommited op amps; and the MAX1360 has three uncommited op amps.

The serial interface is compatible with either SPI™/QSPI™ or MICROWIRE™, and is used to power up, configure, and check the status of all functional blocks. The MAX1358/MAX1359/MAX1360 are available in a space-saving 40-pin TQFN package and are specified over the commercial (0°C to +70°C) and the extended (-40°C to +85°C) temperature ranges.

Key Features

Applications/Uses

+1.8V to +3.6V Single-Supply Operation
Multichannel 16-Bit Sigma-Delta ADC
- 10sps to 512sps Programmable Conversion Rate
- Self and System Offset and Gain Calibration
- PGA with Gains of 1, 2, 4, or 8
- Unipolar and Bipolar Modes 10-Input Differential Multiplexer
10-Bit Force-Sense DACs
Uncommited Op Amps
Dual SPDT Analog Switches
1.25V, 2.048V, or 2.5V Selectable Voltage Reference
Internal Charge Pump
System Support
- Real Time Clock and Alarm Register
- Internal/External Temperature Sensor
- Internal Oscillator with Clock Output
- User-Programmable I/O and Interrupt Generator
- V_DD Monitors
SPI/QSPI/MICROWIRE, 4-Wire Serial Interface
Space-Saving (6mm x 6mm x 0.8mm) 40-Pin TQFN Package

	Battery-Powered and Portable Devices
	Data Acquisition Systems
	Electrochemical and Optical Sensors
	Industrial Control
	Medical Instruments

Key Specifications: Precision ADCs (< 5Msps)

Part Number

ADC Resolution (Bits)

Input Channels

Conv. Rate (ksps)

Max. Conv. Time (µs)

Data Bus (Bits)

Ref. (V)

Input Range (V)

Diff. In

Supply Voltage (V)

Typ. Supply Current (mA)

Typ. Power (mW)

Low Power Mode

Standby Mode

EV-Kit

RoHS Available

Package

Operating Temp. Range (°C)

Price^**

MAX1358

0.512

1953

Serial

Ext
Int +1.25
Int +2.048
Int +2.5

-0.05 to Vref/Gain
-Vref/Gain to Vref/Gain

Yes

1.8
2.5
3
3.3

1.36

2.45

Yes

THIN QFN/40

-40 to +85
0 to +70

$8.88 @ 1k

MAX1359

Yes

THIN QFN/40

$8.20 @ 1k

MAX1360

See Data Sheet

See All Precision ADCs (< 5Msps) (301)

Notes:
^**This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.