MAX1242：+2.7V to +5.25V, Low-Power, 10-Bit Serial ADCs in SO-8
The MAX1242/MAX1243 are low-power, 10-bit analog-to-digital converters (ADCs) available in 8-pin packages. They operate with a single +2.7V to +5.25V supply and feature a 7.5µs successive-approximation ADC, a fast track/hold (1.5µs), an on-chip clock, and a high-speed, 3-wire serial interface. Power consumption is only 3mW (VDD = 3V) at the 73ksps maximum sampling speed. A 2µA shutdown mode reduces power at slower throughput rates. The MAX1242 has an internal 2.5V reference, while the MAX1243 requires an external reference. The MAX1243 accepts signals from 0V to VREF, and the reference input range includes the positive supply rail. An external clock accesses data from the 3-wire interface, which connects directly to standard microcontroller I/O ports. The interface is compatible with SPI, QSPI™, and MICROWIRE®. Excellent AC characteristics and very low power combined with ease of use and small package size make these converters ideal for remote-sensor and data-acquisition applications, or for other circuits with demanding power consumption and space requirements. The MAX1242/MAX1243 are available in 8-pin PDIP and SO packages.
Key Features
| MAX1242, MAX1243: Functional Diagram Applications/Uses
|
DataSheet
| title | Download file |
|---|---|
| MAX1242-MAX1243 Data Sheet | MAX1242-MAX1243.pdf |
Parametrics
| Part Number | Resolution (bits) | Input Chan. | Conv. Rate (ksps) | ADC Architecture | Data Bus | Diff/S.E. Input | Internal VREF (V) | External VREF (V) | External VREF (V) | Unipolar VIN (V) | SNR (dB) | THD (dB) | INL (±LSB) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADC | max | nominal | min | max | max | See Notes | |||||||||
| MAX1242 | 10 | 1 | 73 | SAR | SPI | S.E. Only | 2.5 | 1 | 5.25 | 2.5 | 66 | -70 | 0.5 | CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $4.24 @1k |
| MAX1243 | - | CDIP(N)/8 PDIP(N)/8 SOIC(N)/8 | $3.68 @1k | ||||||||||||
Related Products
- MAX11647：Low-Power, 1-/2-Channel, I²C, 10-Bit ADCs in Ultra-Tiny 1.9mm x 2.2mm Package
- MAX11606：2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel, 2-Wire Serial 10-Bit ADCs
- MAX1137：2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/12-Channel, 2-Wire Serial 10-Bit ADCs
- MAX157：+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin µMAX
- MAX159：+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin µMAX
- MAX1240：+2.7V, Low-Power, 12-Bit Serial ADCs in 8-Pin SO
Ordering Information
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX1242ACPA | No Longer Available | MAX1242ACPA+ | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | No |
| MAX1242ACPA+ | Active | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | Lead Free | |
| MAX1242ACSA | No Longer Available | MAX1242ACSA+ | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1242ACSA+ | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1242ACSA+T | Active | N.SO;8 pin | 0°C to +70°C | See data sheet | |
| MAX1242ACSA-T | No Longer Available | MAX1242ACSA+T | N.SO;8 pin | 0°C to +70°C | See data sheet |
| MAX1242AEPA | No Longer Available | MAX1242AEPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
| MAX1242AEPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | |
| MAX1242AESA | No Longer Available | MAX1242AESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX1242AESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1242AESA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1242AESA-T | No Longer Available | MAX1242AESA+T | N.SO;8 pin | -40°C to +85°C | See data sheet |
| MAX1242AMJA | No Longer Available | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No | |
| MAX1242BCPA | No Longer Available | MAX1242BCPA+ | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | No |
| MAX1242BCPA+ | Active | PDIP(N),;8 pin;79.7 mm² | 0°C to +70°C | Lead Free | |
| MAX1242BCSA | No Longer Available | MAX1242BCSA+ | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1242BCSA+ | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1242BCSA+T | Active | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | Lead Free | |
| MAX1242BCSA-T | No Longer Available | MAX1242BCSA+T | SOIC(N),;8 pin;30.9 mm² | 0°C to +70°C | No |
| MAX1242BEPA | No Longer Available | MAX1242BEPA+ | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | No |
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
| MAX1242BEPA+ | Active | PDIP(N),;8 pin;79.7 mm² | -40°C to +85°C | Lead Free | |
| MAX1242BESA | No Longer Available | MAX1242BESA+ | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | No |
| MAX1242BESA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1242BESA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1242BESA-T | No Longer Available | MAX1242BESA+T | N.SO;8 pin | -40°C to +85°C | See data sheet |
| MAX1242BESA/V+ | Active | N.SO; | -40°C to +85°C | See data sheet | |
| MAX1242BESA/V+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +85°C | Lead Free | |
| MAX1242BMJA | No Longer Available | CDIP(N),;8 pin;82.6 mm² | -55°C to +125°C | No |
- MAX1242-MAX1243.pdf MAX1243
- MAX1242-MAX1243.pdf MAX1243
