QuickView - MAX1098, MAX1098A, MAX1098B, MAX1098C, MAX1099, MAX1099A, MAX1099B, MAX1099C 10-Bit Serial-Output Temperature Sensor with 5-Channel ADC

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Description

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The MAX1098/MAX1099 implement both local and remote temperature sensing with 10-bit resolution, using +5V and +3V supply voltages, respectively. Accuracy is ±1°C from 0°C to +70°C, with no calibration needed. The devices feature an algorithmic switched-capacitor analog-to-digital converter (ADC), on-chip clock, and 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™.

The MAX1098/MAX1099 also perform fully differential voltage measurements with 10-bit resolution and separate track-and-hold (T/N) for positive and negative inputs. Both devices accept versatile input modes consisting of two 3-channel signal pairs, five 1-channel signals relative to a floating common, or V_DD/4 relative to ground. An external reference may be used for more accurate voltage measurements.

Typical power consumption is only 1.3mW (MAX1099). A shutdown mode and two standby modes provide multiple strategies for prolonging battery life in portable applications that require limited sampling throughput.

The MAX1098/MAX1099 are available in 16-pin SSOP packages.

Key Features

Applications/Uses

Local and Remote Temperature Sensing
12-Bit Resolution for Temperature and 10-Bit Resolution for Voltage Inputs
±1°C Accuracy from -40°C to +85°C
Fully Differential Inputs
Single-Supply Operation
- +4.75V to +5.25V (MAX1098)
- +2.7V to +3.6V (MAX1099)
3-Wire SPI/QSPI/MICROWIRE-Compatible Interface
Internal Precision Voltage Reference
- 2.50V (MAX1098)
- 1.20V (MAX1099)
Space-Saving 16-Pin SSOP Package

	Communication Systems
	Handheld Instruments (PDAs, Palmtops)
	Industrial Process Controls
	Medical Equipment

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)

Standby Mode

Package

Price^**

MAX1098

0.9

1100

Serial

Int.+2.5

±2

Yes

0.44

2.2

Yes

SSOP/16

$2.68 @ 1k

See All Precision ADCs (< 5Msps) (375)

Key Specifications: Temperature Sensors

Part Number

Sensor Type

Interface

Accuracy (±°C)

Parasite Power

Temperature Resolution (Bits)

Operating Temp. Range (°C)

Smallest Available Package (max w/pins) (mm²)

Price^**

MAX1099

Local

3-Wire/SPI

-40 to +85

$2.68 @ 1k

See All Temperature Sensors (99)

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.