TC1322 Datasheet, PDF (3/16 Pages) Microchip Technology – 12-Bit Digital-to-Analog Converter with Two-Wire Interface

TC1322
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings*
Supply Voltage (V_DD) ............................................. +6V
Voltage on any Pin .... (GND – 0.3V) to (V_DD + 0.3V)
Current on any Pin ............................................ ±50mA
Package Thermal Resistance (θ_JA)............ 330°C C/W
Operating Temperature (T_A)........................ See Below
Storage Temperature (T_STG) .............. -65°C to +150°C
*Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. These
are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the
operation sections of the specifications is not implied.
Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability.
TC1322 ELECTRICAL SPECIFICATIONS
Electrical Characteristics: V_DD = 2.7V to 5.5V, -40°C ≤ T_A ≤ +85°C, V_REF = 1.2V, C_L = 80pF, unless otherwise noted.
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
Power Supply
V_DD
Supply Voltage
I_DD
Operating Current
I_DD-STANDBY Standby Supply Current
2.7
—
5.5
—
—
0.35
0.5
mA V_DD = 5.5V, V_REF = 1.2V
Serial Port Inactive (Note 1)
—
0.1
1
µA V_DD = 3.3V
Serial Port Inactive (Note 1)
Static Performance - Analog Section
Resolution
—
—
10
INL
Integral Non-Linearity at FS, T_A = +25°C —
—
±16
FSE
Full Scale Error
—
—
±3
DNL
Differential Non-Linearity, T_A = +25°C
—
—
+4
V_OS
Offset Error at V_OUT
—
±0.3
±8
TCV_OS
Offset Error Tempco at V_OUT
—
10
—
PSRR
Power Supply Rejection Ratio
—
80
—
V_REF
Voltage Reference Range
I_REF
Reference Input Leakage Current
V_SW
Voltage Swing
R_OUT
Output Resistance @ V_OUT
I_OUT
Output Current (Source or Sink)
I_SC
Output Short-Circuit Current
V_DD = 5.5V
Dynamic Performance
0
—
V_DD – 1.2
—
—
±1.0
0
—
—
5.0
V_REF
—
—
2
—
—
30
50
—
20
50
SR
Voltage Output Slew Rate
—
0.8
—
t_SETTLE
Output Voltage Full Scale Settling Time —
10
—
t_WU
Wake-up Time
—
20
—
Digital Feed through and Crosstalk
—
5
—
Serial Port Interface
V_IH
Logic Input High
V_IL
Logic Input Low
V_OL
SDA Output Low
2.4
—
V_DD
—
—
0.6
—
—
0.4
—
—
0.6
C_IN
Input Capacitance SDA, SCL
—
5
0.4
I_LEAK
I/O Leakage
—
—
±1.0
Note 1: SDA and SCL must be connected to V_DD or GND.
2: Measured at V_OUT ≥ 50mV referred to GND to avoid output buffer clipping.
Bits
LSB
%FS
LSB
mV
µv/°C
dB
V
µA
V
Ω
mA
mA
mA
(Note 2)
All Codes (Note 2)
(Note 2)
V_DD at DC
V_REF ≤ (V_DD – 1.2V)
R_OUT (Ω)
Source
Sink
V/µs
µsec
µs
nV-s
SDA = V_DD, SCL = 100kHz
V
—
V I_OL = 3mA (Sinking Current)
V I_OL = 6mA
pF
µA
© 2002 Microchip Technology Inc.
DS21388B-page 3