HI-674A Intersil Corporation, HI-674A Datasheet
HI-674A
Related parts for HI-674A
HI-674A Summary of contents
Page 1
... Bus Access Time . . . . . . . . . . . . . . . . . . . . . . . . . . 150ns • No Missing Codes Over Temperature • Minimal Setup Time for Control Signals • Fast Conversion Times - HI-574A (Max HI-674A (Max HI-774 (Max • Digital Error Correction (HI-774) • Low Noise, via Current-Mode Signal Transmission Between Chips • ...
Page 2
... HI3-774K-5 0.5 LSB HI1-774J-5 1.0 LSB HI1-774K-5 0.5 LSB HI1-774U-2 0.5 LSB 0.5 LSB HI1-774T/883 HI4-774S/883 1.0 LSB HI4-774T/883 0.5 LSB HI4-774U/883 0.5 LSB HI-574A, HI-674A, HI-774 TEMPERATURE RANGE o INL ( -55 to 125 -55 to 125 -55 to 125 -55 to 125 -55 to 125 ...
Page 3
... DIGITAL CHIP ANALOG CHIP V IN REF 10K V OUT REF +10V REF ANALOG COMMON NOTE: “Nibble” 4-bit digital word. HI-574A, HI-674A, HI-774 BIT OUTPUTS MSB NIBBLE A (NOTE) NIBBLE B (NOTE) THREE-STATE BUFFERS AND CONTROL POWER-UP RESET 12 BITS SAR 12 BITS DAC ...
Page 4
... Maximum Lead Temperature (Soldering, 10s 300 Die Characteristics Transistor Count 125 C HI-574A, HI-674A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1117 HI-774 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2117 o Typical with V = +15V or +12V Unless Otherwise Specified TEMPERATURE RANGE - SUFFIX ...
Page 5
... Power Dissipation 15V, +15V 12V, +5V Internal Reference Voltage MIN MAX Output Current, Available For External Loads (External Load Should Not Change During Conversion). HI-574A, HI-674A, HI-774 o Typical with V = +15V or +12V Unless Otherwise Specified (Continued) TEMPERATURE RANGE J SUFFIX 2 ...
Page 6
... Power Supply Rejection Max Change In Full Scale Calibration +13.5V < V < +16.5V or +11.4V < +4.5V < V < +5.5V LOGIC -16.5V < V < -13.5V or -12.6V < ANALOG INPUTS Input Ranges Bipolar Unipolar HI-574A, HI-674A, HI-774 o Typical with V = +15V or +12V Unless Otherwise Specified TEMPERATURE RANGE S SUFFIX ...
Page 7
... SOURCE Logic “1” SOURCE Leakage (High-Z State, DB11-DB0 Only) Capacitance Timing Specifications (HI-574A) 25 SYMBOL CONVERT MODE t STS Delay from CE DSC HI-574A, HI-674A, HI-774 o Typical with V = +15V or +12V Unless Otherwise Specified (Continued) TEMPERATURE RANGE S SUFFIX MIN +2.4V -0.5V - ...
Page 8
... Conversion Time C READ MODE t Access Time from Data Valid After CE Low HD t Output Float Delay HL HI-574A, HI-674A, HI-774 o C, Note 2, Unless Otherwise Specified (Continued) PARAMETER 12-Bit Cycle MIN MAX 8-Bit Cycle MIN MAX o C, Note 2, Unless Otherwise Specified ...
Page 9
... STS Delay After Data Valid HS NOTES: 1. Dissipation rating assumes device is mounted with all leads soldered to printed circuit board. 2. Time is measured from 50% level of digital transitions. Tested with a 50pF and 3k load. HI-574A, HI-674A, HI-774 o C, Note 2, Unless Otherwise Specified (Continued) PARAMETER C, Into a load with and C = 50pF, Note 2, Unless Otherwise Specifi ...
Page 10
... Data Bit 11 (MSB) 28 STS Status Bit - Status high implies a conversion is in progress. HI-574A, HI-674A, HI-774 Definitions of Specifications Linearity Error Linearity error refers to the deviation of each individual code from a line drawn from “zero” through “full scale”. The point used as “zero” occurs the fi ...
Page 11
... Each of the twelve disturbances should subside less for the HI-574A and 500ns or less for the HI-674A. (The comparator decision is made about 1.5 s and 850ns after each code change from the SAR for the HI-574A and HI-674A, respectively.) ...
Page 12
... The converter then continues to make the 4 LSB decisions, settling out to 12-bit accuracy. The last four bits can adjust the code in the positive HI-574A, HI-674A, HI-774 direction LSBs. This results in a total correction range of +31 to -32 LSBs. When an 8-bit conversion is per- formed, the input must settle to within tion (which equals 8 LSBs at 12-bit resolution) ...
Page 13
... Nominal value of an increment is one LSB. However, this approach is impractical because nothing “happens” midpoint to indicate that an HI-574A, HI-674A, HI-774 adjustment is complete. Therefore, calibration is performed in terms of the observable code changes instead of the STS 28 midpoint between code changes ...
Page 14
... STS Delay after Data Valid 300 HS t High R/C Pulse Width 150 HRH t Data Access Time - DDR Time is measured from 50% level of digital transitions. Tested with a 50pF and 3k load. HI-674A STAND-ALONE MODE TIMING SYMBOL PARAMETER MIN t Low R/C Pulse Width 50 HRL t STS Delay from R ...
Page 15
... HSC t SRC R/C t HRC SAC t HAC STS t DSC HIGH IMPEDANCE DB11-DB0 See HI-774 Timing Specifications for more information. FIGURE 4. CONVERT START TIMING HI-574A, HI-674A, HI-774 usually tied to O R/C high STS BYTE DB11-DB0 LSB See HI-774 Timing Specifications for more information. ...
Page 16
... DATA DB11-DB0 VALID FIGURE 8. LOW PULSE FOR R/C - OUTPUTS ENABLED AFTER CONVERSION R/C t HRH STS t DDR HIGH-Z DB11-DB0 FIGURE 9. HIGH PULSE FOR R/C - OUTPUTS ENABLED WHILE R/C HIGH, OTHERWISE HIGH-Z HI-574A, HI-674A, HI-774 READ CONTROL CONVERT CONTROL POWER UP RESET FIGURE 7. HI-774 CONTROL LOGIC t HRL ...
Page 17
... COMMON ANALOG COMMON V REFIN V EE HI-574A, HI-674A, HI-774 PASSIVATION: Type: Nitride Over Silox Nitride Thickness: 3.5k Silox Thickness: 12k WORST CASE CURRENT DENSITY 1 A/cm HI-574A, HI-674A, HI-774 6-968 Å Å 0.5k Å Å 1.5k DB10 DB9 DB8 DB7 DB6 DB5 DB4 DB3 DB2 ...
Page 18
... For information regarding Intersil Corporation and its products, see web site http://www.intersil.com Sales Office Headquarters NORTH AMERICA Intersil Corporation P. O. Box 883, Mail Stop 53-204 Melbourne, FL 32902 TEL: (321) 724-7000 FAX: (321) 724-7240 HI-574A, HI-674A, HI-774 EUROPE Intersil SA Mercure Center 100, Rue de la Fusee 1130 Brussels, Belgium TEL: (32) 2.724.2111 FAX: (32) 2.724.22.05 ...