MAX198:6-Channel, Multirange, 5V, 12-Bit DAS with 12-Bit Bus Interface and Fault Protection

±17V Fault-Protected ADC with Software-Selectable Input Ranges

The MAX196/MAX198 multirange, 12-bit data-acquisition systems (DAS) require only a single +5V supply for operation, yet convert analog signals at their inputs up to ±10V (MAX196) and ±4V (MAX198). These systems provide six analog input channels that are independently software programmable for a variety of ranges: ±10V, ±5V, 0V to +10V, and 0V to +5V for the MAX196; ±VREF, ±VREF/2, 0V to +VREF, and 0V to +VREF/2 for the MAX198. This range switching increases the effective dynamic range to 14 bits and provides the flexibility to interface ±12V, ±15V, and 4mA to 20mA powered sensors to a single +5V system. In addition, these converters are fault protected to ±16.5V; a fault condition on any channel will not affect the conversion result of the selected channel. Other features include a 5MHz bandwidth track/hold, 100ksps throughput rate, software-selectable internal/external clock, internal/external acquisition control, 12-bit parallel interface, and internal 4.096V or external reference. Two programmable power-down modes (STBYPD, FULLPD) provide low-current shutdown between conversions. In STBYPD mode, the reference buffer remains active, eliminating start-up delays. The MAX196/MAX198 employ a standard microprocessor (µP) interface. A three-state data I/O port is configured to operate with 16-bit data buses, and data-access and bus-release timing specifications are compatible with most popular µPs. All logic inputs and outputs are TTL/CMOS compatible. These devices are available in 28-pin DIP, wide SO, SSOP (55% smaller in area than wide SO), and ceramic SB packages. For 8+4 bus interface, see the MAX197 and the MAX199 data sheets. An evaluation kit is available (MAX196EVKIT-DIP).

Key Features
  • 12-Bit Resolution, 1/2 LSB Linearity
  • Single +5V Supply Operation
  • Software-Selectable Input Ranges:
    • ±10V, ±5V, 0V to +10V, 0V to +5V (MAX196)
    • ±VREF, ±VREF/2, 0V to +VREF, 0V to +VREF/2 (MAX198)
  • Internal 4.096V or External Reference
  • Fault-Protected Input Multiplexer
  • 6 Analog Input Channels
  • 6µs Conversion Time, 100ksps Sampling Rate
  • Internal or External Acquisition Control
  • Two Power-Down Modes
  • Internal or External Clock
MAX196, MAX198: Functional Diagram
MAX196, MAX198: Functional Diagram
Applications/Uses
  • Automated Test Equipment (ATE)
  • Data Acquisition
  • Industrial Controls Systems
  • Medical Instruments
  • Robotics
  • Telecommunications
DataSheet
titleDownload file
MAX196-MAX198 Data SheetMAX196-MAX198.pdf
Parametrics
Part NumberResolution
(bits)
Input Chan.Conv. Rate
(ksps)
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
(V)
External VREF
(V)
External VREF
(V)
Unipolar VIN
(V)
Bipolar VIN
(±V)
THD
(dB)
INL
(±LSB)
Package/PinsBudgetary
Price
ADCmaxnominalminmaxmaxmaxSee Notes
MAX196126100SARµP/12S.E. Only4.0962.44.181010-851PDIP(N)/28
SOIC(W)/28
SSOP/28
$16.15 @1k
MAX1984.0964.096PDIP(N)/28
SOIC(W)/28
SSOP/28
Design kits & evaluation modules
Related Products
  • MAX1265:265ksps, +3V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1266:420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1294:420ksps, +5V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX1295:265ksps, +3V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface
  • MAX197:Multi-Range (±10V, ±5V, +10V, +5V), Single +5V, 12-Bit DAS with 8+4 Bus Interface
  • MAX199:8-Channel, Multi-Range, 5V, 12-Bit DAS with 8+4 Bus Interface and Fault Protection
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX198ACAINo Longer AvailableMAX198ACAI+SSOP,;28 pin;81.6 mm²0°C to +70°CSee data sheet
MAX198ACAI+ActiveSSOP,;28 pin;81.6 mm²0°C to +70°CLead Free
MAX198ACAI+TActiveSSOP,;28 pin;81.6 mm²0°C to +70°CLead Free
MAX198ACAI-TNo Longer AvailableMAX198ACAI+TSSOP;28 pin0°C to +70°CSee data sheet
MAX198ACNINo Longer AvailableMAX198ACNI+PDIP(N),;28 pin;289.5 mm²0°C to +70°CNo
MAX198ACNI+No Longer AvailablePDIP(N),;28 pin;289.5 mm²0°C to +70°CLead Free
MAX198ACWINo Longer AvailableMAX198ACWI+SOIC(W),;28 pin;192.8 mm²0°C to +70°CNo
MAX198ACWI+ActiveSOIC(W),;28 pin;192.8 mm²0°C to +70°CLead Free
MAX198ACWI+TActiveSOIC(W),;28 pin;192.8 mm²0°C to +70°CLead Free
MAX198ACWI-TNo Longer AvailableMAX198ACWI+TW.SO;28 pin0°C to +70°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX198AEAINo Longer AvailableMAX198AEAI+SSOP,;28 pin;81.6 mm²-40°C to +85°CSee data sheet
MAX198AEAI+ActiveSSOP,;28 pin;81.6 mm²-40°C to +85°CLead Free
MAX198AEAI+TActiveSSOP,;28 pin;81.6 mm²-40°C to +85°CLead Free
MAX198AEAI-TNo Longer AvailableMAX198AEAI+TSSOP;28 pin-40°C to +85°CSee data sheet
MAX198AENINo Longer AvailableMAX198AENI+PDIP(N),;28 pin;289.5 mm²-40°C to +85°CNo
MAX198AENI+No Longer AvailablePDIP(N),;28 pin;289.5 mm²-40°C to +85°CLead Free
MAX198AEWINo Longer AvailableMAX198AEWI+SOIC(W),;28 pin;192.8 mm²-40°C to +85°CNo
MAX198AEWI+ActiveSOIC(W),;28 pin;192.8 mm²-40°C to +85°CLead Free
MAX198AEWI+TActiveSOIC(W),;28 pin;192.8 mm²-40°C to +85°CLead Free
MAX198AEWI-TNo Longer AvailableMAX198AEWI+TW.SO;28 pin-40°C to +85°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX198AMDINo Longer AvailableSDBRZ;-55°C to +125°CSee data sheet
MAX198BC/DNo Longer AvailableDICE;0°C to +70°CSee data sheet
MAX198BCAINo Longer AvailableMAX198BCAI+SSOP,;28 pin;81.6 mm²0°C to +70°CSee data sheet
MAX198BCAI+ActiveSSOP,;28 pin;81.6 mm²0°C to +70°CLead Free
MAX198BCAI+TActiveSSOP;28 pin0°C to +70°CSee data sheet
MAX198BCAI-TNo Longer AvailableMAX198BCAI+TSSOP,;28 pin;81.6 mm²0°C to +70°CSee data sheet
MAX198BCNINo Longer AvailableMAX198BCNI+PDIP(N),;28 pin;289.5 mm²0°C to +70°CNo
MAX198BCNI+No Longer AvailablePDIP(N),;28 pin;289.5 mm²0°C to +70°CLead Free
MAX198BCWINo Longer AvailableMAX198BCWI+SOIC(W),;28 pin;192.8 mm²0°C to +70°CNo
MAX198BCWI+ActiveSOIC(W),;28 pin;192.8 mm²0°C to +70°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX198BCWI+TActiveW.SO;28 pin0°C to +70°CSee data sheet
MAX198BCWI-TNo Longer AvailableMAX198BCWI+TSOIC(W),;28 pin;192.8 mm²0°C to +70°CNo
MAX198BEAINo Longer AvailableMAX198BEAI+SSOP,;28 pin;81.6 mm²-40°C to +85°CSee data sheet
MAX198BEAI+ActiveSSOP,;28 pin;81.6 mm²-40°C to +85°CLead Free
MAX198BEAI+TActiveSSOP,;28 pin;81.6 mm²-40°C to +85°CLead Free
MAX198BEAI-TNo Longer AvailableMAX198BEAI+TSSOP;28 pin-40°C to +85°CSee data sheet
MAX198BENINo Longer AvailableMAX198BENI+PDIP(N),;28 pin;289.5 mm²-40°C to +85°CNo
MAX198BENI+No Longer AvailablePDIP(N),;28 pin;289.5 mm²-40°C to +85°CLead Free
MAX198BEWINo Longer AvailableMAX198BEWI+SOIC(W),;28 pin;192.8 mm²-40°C to +85°CNo
MAX198BEWI+ActiveSOIC(W),;28 pin;192.8 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX198BEWI+TActiveSOIC(W),;28 pin;192.8 mm²-40°C to +85°CLead Free
MAX198BEWI-TNo Longer AvailableMAX198BEWI+TW.SO;28 pin-40°C to +85°CSee data sheet
MAX198BMDINo Longer AvailableSDBRZ;-55°C to +125°CSee data sheet
MAX196-MAX198.pdf MAX198
Analog-Signal Data Acquisition in Industrial Automation Systems MAX199
MAX196-MAX198.pdf MAX196