MCP6S21/2/6/8
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
VDD - VSS .........................................................................7.0V
All inputs and outputs....................... VSS - 0.3V to VDD +0.3V
Difference Input voltage ........................................ |VDD - VSS|
Output Short Circuit Current...................................continuous
Current at Input Pin .............................................................±2 mA
Current at Output and Supply Pins ................................ ±30 mA
Storage temperature .....................................-65°C to +150°C
Junction temperature .................................................. +150°C
ESD protection on all pins (HBM;MM).................. ≥ 2 kV; 200V
† Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect
device reliability.
DC CHARACTERISTICS
PIN FUNCTION TABLE
Name
VOUT
CH0-CH7
VSS
VDD
SCK
SI
SO
CS
VREF
Function
Analog Output
Analog Inputs
Negative Power Supply
Positive Power Supply
SPI Clock Input
SPI Serial Data Input
SPI Serial Data Output
SPI Chip Select
External Reference Pin
Electrical Specifications: Unless otherwise indicated, TA = +25°C, VDD = +2.5V to +5.5V, VSS = GND, VREF = VSS, G = +1 V/V,
Input = CH0 = (0.3V)/G, CH1 to CH7 = 0.3V, RL = 10 kΩ to VDD/2, SI and SCK are tied low and CS is tied high.
Parameters
Sym Min Typ
Max Units
Conditions
Amplifier Input
Input Offset Voltage
Input Offset Voltage Drift
Power Supply Rejection Ratio
VOS
∆VOS/∆TA
PSRR
-275
—
70
w—ww.DataSheet4+U.2co7m5
±4 —
85 —
µV
µV/°C
dB
G = +1, VDD = 4.0V
TA = -40 to +85°C
G = +1 (Note 1)
Input Bias Current
Input Bias Current over
Temperature
Input Impedance
Input Voltage Range
Amplifier Gain
IB
IB
ZIN
VIVR
— ±1
—
— — 250
— 1013||15
VSS−0.3
—
—
VDD+0.3
pA
pA
Ω||pF
V
CHx = VDD/2
TA = -40 to +85°C,
CHx = VDD/2
Nominal Gains
G
— 1 to 32
—
V/V +1, +2, +4, +5, +8, +10, +16 or +32
DC Gain Error
G = +1
G ≥ +2
DC Gain Drift
G = +1
G ≥ +2
Internal Resistance
Internal Resistance over
Temperature
Amplifier Output
gE
gE
∆G/∆TA
∆G/∆TA
RLAD
∆RLAD/∆TA
-0.1
-1.0
—
—
3.4
—
—
—
±0.0002
±0.0004
4.9
+0.028
+0.1
+1.0
—
—
6.4
—
%
%
%/°C
%/°C
kΩ
%/°C
VOUT ≈ 0.3V to VDD − 0.3V
VOUT ≈ 0.3V to VDD − 0.3V
TA = -40 to +85°C
TA = -40 to +85°C
(Note 1)
(Note 1)
TA = -40 to +85°C
DC Output Non-linearity G = +1
VONL
— ±0.003
— % of FSR VOUT = 0.3V to VDD − 0.3V, VDD = 5.0V
G ≥ +2
VONL
— ±0.001
— % of FSR VOUT = 0.3V to VDD − 0.3V, VDD = 5.0V
Maximum Output Voltage Swing VOH, VOL VSS+20
—
VDD-100
mV G ≥ +2; 0.5V output overdrive
VSS+60
—
VDD-60
G ≥ +2; 0.5V output overdrive,
VREF = VDD/2
Short-Circuit Current
IO(SC)
—
±30
—
mA
Note 1: RLAD (RF + RG in Figure 4-1) connects VREF, VOUT and the inverting input of the internal amplifier. The MCP6S22 has
VREF tied internally to VSS, so VSS is coupled to the internal amplifier and the PSRR spec describes PSRR+ only. We
recommend the MCP6S22’s VSS pin be tied directly to ground to avoid noise problems.
2: IQ includes current in RLAD (typically 60 µA at VOUT = 0.3V). Both IQ and IQ_SHDN exclude digital switching currents.
3: The output goes Hi-Z and the registers reset to their defaults; see Section 5.4, “Power-On Reset”.
DS21117A-page 2
2003 Microchip Technology Inc.
