+2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin µMAX
DescriptionThe MAX144/MAX145 low-power, 12-bit analog-to-digital converters (ADCs) are available in 8-pin µMAX® and DIP packages. Both devices operate with a single +2.7V to +5.25V supply and feature a 7.4µs successive- approximation ADC, automatic power-down, fast wake-up (2.5µs), an on-chip clock, and a high-speed, 3-wire serial interface.
Power consumption is only 3.2mW (VDD = +3.6V) at the maximum sampling rate of 108ksps. At slower throughput rates, the automatic shutdown (0.2µA) further reduces power consumption.
The MAX144 provides 2-channel, single-ended operation and accepts input signals from 0 to VREF. The MAX145 accepts pseudo-differential inputs ranging from 0 to VREF. An external clock accesses data-through the 3-wire serial interface, which is SPI, QSPI, and MICROWIRE-compatible.
Excellent dynamic performance and low power, combined with ease of use and small package size, make these converters ideal for battery-powered and data-acquisition applications, or for other circuits with demanding power-consumption and space requirements. For pin-compatible 10-bit ADCs, see the MAX157 and MAX159 data sheets.
- Single-Supply Operation (+2.7V to +5.25V)
- Two Single-Ended Channels (MAX144) One Pseudo-Differential Channel (MAX145)
- Low Power
- 0.9mA (108ksps, +3V Supply)
- 100µA (10ksps, +3V Supply)
- 10µA (1ksps, +3V Supply)
- 0.2µA (Power-Down Mode)
- Internal Track/Hold
- 108ksps Sampling Rate
- SPI/QSPI/MICROWIRE-Compatible 3-Wire Serial Interface
- Space-Saving 8-Pin µMAX Package
- Pin-Compatible 10-Bit Versions Available
- Battery-Powered Applications
- Isolated Data Acquisition
- Medical Instruments
- Portable Data Logging
- Process Control Monitoring
- System Supervision
- Test Equipment
|Input Chan.||Conv. Rate|
|ADC Architecture||Data Bus||Diff/S.E. Input||External VREF|
|See All Precision ADCs (< 5Msps) (440)|
| Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|