HT574 Honeywell, HT574 Datasheet
HT574
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HT574 Summary of contents
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... Analog input signal ranges +10V +20V may be selected from the internal resistor scaling network. The HT574 provides 12-bit conversions over the entire -55 to +225 C temperature range. Typically, parts will operate up to +300 C for a year, with derated performance. ...
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... HT574 FUNCTIONAL DIAGRAM 2 12_N8 3 NCS 4 Ao CONTROL 5 R_NC VREF_OUT (5.0V) 1 VTRIM 10 VREF_IN (5.0V) 14 20V_IN 13 10V_IN 12 BIP_OFF PINOUT DIAGRAM 1 VLOGIC (+5V) 12_N8 2 3 NCS R_NC VDD (+10V) VREF_OUT 8 9 AGND 10 VREF_IN 11 VTRIM BIP_OFF 12 10V_IN 13 20V_IN 14 TIMING & OSC VBG REF COMP 2.5K VREF = 5V ...
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... Tmin to Tmax Adjustable to zero Adjustable to zero No adjustment at +25 C, Tmin to Tmax Using internal reference, Tmin to Tmax Max change in full scale calibration VDD = 10V, VLOGIC = 5 V Sink or source 3 HT574 Temperature ranges = -55 to +225 C, VDD = 10.0V 10% Typical @ +25 C, Vlogic = +5V, unless otherwise specified Typ Min Max ...
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... HT574 DIGITAL CHARACTERISTICS Parameter Logic Inputs (CE, NCS, R_NC, Ao, 12_N8) Logic "1" Logic "0" Current Capacitance Logic Outputs (DB11-DBO, STS) Logic "0" Logic "1" Leakage Capacitance READ MODE AC TIMING CHARACTERISTICS Symbol Parameter tDD Access Time from CE tHD Data Valid after CE Low ...
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... High Impedance DB11-DB0 Temperature ranges = -55 to +225 C, VDD = 10.0V 10% Typical @ +25 C, Vlogic = +5V, unless otherwise specified Conditions (1) Including Acquisition Tmin to Tmax Tmin to Tmax READ MODE TIMING DIAGRAM CE NCS R_NC Ao STS tC DB11-DB0 5 HT574 Typical Min Max Units 200 ...
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... HT574 STAND ALONE MODE TIMING CHARACTERISTICS Symbol Parameter tHRL Low R_NC Pulse Width tDS STS Delay from R_NC tHDR Data Valid after R_NC Low tHS STS Delay after Data Valid tHRH High R_NC Pulse Width tDDR Data Access Time SAMPLE AND HOLD CHARACTERISTICS ...
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... Note offset adjustment is required, BIP_OFF can be tied directy to AGND (0 volts). BIPOLAR INPUT CONNECTIONS Open VIN (±5V) Range BIP_OFF VREF_OUT VREF_IN 14 10K VIN (0 TO 5V) 5K REF OUT = 5V 8 VREF = 5V 2. 10K 13 5K VIN ( REF OUT = 5V 8 VREF = 5V 2. HT574 VBG REF 11 VTRIM VBG REF 11 VTRIM ...
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... HT574 TRUTH TABLE FOR HT574 CONTROL Case CE NCS ABSOLUTE MAXIMUM RATINGS (1) VDD to Analog Common ........................................................................................................................... 0V to +12.5V VLOGIC to Digital Common ........................................................................................................................... 0V to +7V Analog Common to Digital Common ....................................................................................................................... 1V Control Inputs (CE, NCS, 12_N8, Ao, R_NS) to Digital Common............................................ -0.5V to VLOGIC +0.5V Analog Inputs (VREF_IN, BIP_OFF, 10V_IN) to Analog Common ...