ABSOLUTE MAXIMUM RATINGS
PARAMETERS
+15V Supply, Pin 28
–15V Supply, Pin 31
+5V Supply, Pin 16
Digital Inputs, Pins 14, 21
Analog Inputs, Pins 24, 25
Buffer Input, Pin 30
Lead Temperature (10 seconds)
LIMITS
+18
–18
+7
±5.5
±25
±15
300
UNITS
Volts
Volts
Volts
Volts
Volts
Volts
°C
Functional Specifications
(Typical at +25°C and ±15V and +5V supplies unless otherwise noted)
INPUTS
ADC-HX12B
ADC-HZ12B
Analog Input Ranges
Unipolar
Bipolar
Input Impedance
5k (0 to +10V, ±5V)
10k (±10V)
Input Impedance with Buffer
Input Bias Current of Buffer
Start Conversion
0 to +5V, 0 to +10V
±2.5V, ±5V, ±10V
2.5k (0 to +5V, ±2.5V)
50 megohms
125nA typical, 250nA max.
+2V min. to +5.5V max. positive pulse with dur-
ation of 100ns min. Rise and fall times <30ns.
Logic "1" to "0" transition resets converter and
initiates next conversion. Loading: 2 TTL loads.
PERFORMANCE
Resolution
Nonlinearity
Differential Nonlinearity
Accuracy Error ~
Gain (before adjustment)
Zero, Unipolar (before adj.)
Offset, Bipolar (before adj.)
Temperature Coefficient
Gain
Zero, Unipolar
Offset, Bipolar
Diff. Nonlinearity Tempco
No Missing Codes
Conversion Time
12 Bits
10 Bits