MAX1110, MAX1111 +2.7V、低功耗、多通道、串行8位ADC

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The MAX1110/MAX1111 are low-power, 8-bit, 8-channel analog-to-digital converters (ADCs) that feature an internal track/hold, voltage reference, clock, and serial interface. They operate from a single +2.7V to +5.5V supply and consume only 85µA while sampling at rates up to 50ksps. The MAX1110's 8 analog inputs and the MAX1111's 4 analog inputs are software-configurable, allowing unipolar/bipolar and single-ended/differential operation.

Successive-approximation conversions are performed using either the internal clock or an external serial-interface clock. The full-scale analog input range is determined by the 2.048V internal reference, or by an externally applied reference ranging from 1V to V_DD. The 4-wire serial interface is compatible with the SPI™, QSPI™, and MICROWIRE™ serial-interface standards. A serial-strobe output provides the end-of-conversion signal for interrupt-driven processors.

The MAX1110/MAX1111 have a software-programmable, 2µA automatic power-down mode to minimize power consumption. Using power-down, the supply current is reduced to 6µA at 1ksps, and only 52µA at 10ksps. Power-down can also be controlled using the SHDN-bar input pin. Accessing the serial interface automatically powers up the device.

The MAX1110 is available in 20-pin SSOP and DIP packages. The MAX1111 is available in small 16-pin QSOP and DIP packages.

关键特性

应用/使用

+2.7V to +5.5V Single Supply
Low Power:
- 85µA at 50ksps
- 6µA at 1ksps
8-Channel Single-Ended or 4-Channel Differential Inputs (MAX1110)
4-Channel Single-Ended or 2-Channel Differential Inputs (MAX1111)
Internal Track/Hold; 50kHz Sampling Rate
Internal 2.048V Reference
SPI/QSPI/MICROWIRE-Compatible Serial Interface
Software-Configurable Unipolar or Bipolar Inputs
Total Unadjusted Error:
- ±1LSB max
- ±0.3LSB typ

	4mA至20mA供电远端数据采集系统
	手持式测量设备
	医疗仪器
	便携式数据记录
	系统诊断

Key Specifications: Precision ADCs (< 5Msps)

Part Number

ADC Resolution (Bits)

Input Channels

Conv. Rate (ksps)

Max. Conv. Time (µs)

Data Bus (Bits)

Ref. (V)

Diff. In

Supply Voltage (V)

Typ. Supply Current (mA)

Typ. Power (mW)

Low Power Mode

Standby Mode

EV-Kit

RoHS Available

Package

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

Operating Temp. Range (°C)

Price^**

MAX1110

Serial

Ext
Int +2.048

Yes

3
3.3
5

0.085

0.2295

Yes

Ceramic DIP/20
DICE SALES/0
PDIP/20
SSOP/20

-40 to +85
-55 to +125
0 to +70

$1.86 @ 1k

MAX1111

Ceramic DIP/16
DICE SALES/0
PDIP/16
QSOP/16

$1.69 @ 1k

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.