ic microsystems ic mic tm ic microsystems ic mic tm icm 8010 1.2v , 750 k sps, 10b it sar adc rev. a i cm i c reserves the r i gh t to change s p e c i f i c a t i on s w i t hou t p r i o r no t i c e 1 features ? 10-bit sar adc ? single supply - single channel ? fast throughput of 750 ksps ? analog input range: 0v to 1.2v ? temperature range: ?40c to +85c ? specified for vdd of 0.9v to 1.32v ? internal power-on reset ? typical power consumption 0.6mw ? 8-lead tssop applications ? battery powered systems ? medical instrumentation ? digital power supplies ? touch screen controllers ? data acquisition systems ? automotive overview the ICM8010 is a 10-bit 750 ksps through put rate sar analog-to-digital converter with a uni-polar, single-ended input. it has successive approximation register (sar) architecture and can sample the analog input. it has a flexible serial interface. block diagram dout ICM8010 comparator c - dac dclk refin cs b vin successive approximation register (sar) r-dac
ic microsystems ic mic tm ic microsystems ic mic tm icm 8010 1.2v , 750 k sps, 10b it sar adc rev. a i cm i c reserves the r i gh t to change s p e c i f i c a t i on s w i t hou t p r i o r no t i c e 2 package 8-pin tssop pin description pin no symbol description 1 vdd power supply input. range is from 0.9v to 1.32 v 2 vref reference input 3 vin analog input 4 gnd ground 5 dout serial data output, clocked out on falling edg e of clk 6 dclk external clk input 7 csb chip select input active low. initiates conversi on and enables serial data. 8 nc no connection absolute maximum rating symbol parameter value unit v dd supply voltage -0.3 to 1.5 v i in input current +/- 50.0 ma v in_ digital input voltage -0.3 to 1.2 v v in_ref reference input voltage -0.3 to 1.5 v t stg storage temperature -65 to +150 o c t sol soldering temperature 300 o c note : stress greater than those listed under absolute m aximum ratings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other cond itions above those indicated in the operational sections of this speci fication is not implied. exposure to absolute maxim um rating conditions for extended periods may affect reliability . nc csb dclk dout vdd vref vin gnd
ic microsystems ic mic tm ic microsystems ic mic tm icm 8010 1.2v , 750 k sps, 10b it sar adc rev. a i cm i c reserves the r i gh t to change s p e c i f i c a t i on s w i t hou t p r i o r no t i c e 3 ordering information part temperature range package ICM8010 -40 o c to 85 o c 8-pin tssop dc electrical characteristics (vdd = 1.2v, maximum sample rate, ref = 1.2v; all specifications t min to t max unless otherwise noted) symbol parameter test conditions min typ max unit dc performance n resolution (note 1) 10 bits no missing codes (note 1) 10 bits inl integral nonlinearity (note 1) 0.75 % of fsr ge gain error (note 1) 1.1 % of fs oe offset error (note 1) 25 mv power requirements vdd supply voltage (note 2) 0.9 1.2 1.32 v i vdd supply current (note 1) 500 a i shtdown supply current (note 1) 50 a symbol parameter test conditions min typ max unit switching specifications (clk input) fsample maximum conversion rate (note 2) 750 ksps minimum conversion rate (note 2) 1 ksps tclk clk period (note 2) 82 ns pulse-width high (note 2) 41 ns pulse-width low (note 2) 41 ns t delay data out delay (note 2) 15 ns reference r in reference input resistance (note 1) 8.5 k reference input span vdd v i ref reference input current 150 a note 1: 100 % production tested at 25 c; guaranteed by design and characterization testing for tempera ture range. note 2: guaranteed by design & characterization testing. note 3: see applications information.
ic microsystems ic mic tm ic microsystems ic mic tm icm 8010 1.2v , 750 k sps, 10b it sar adc rev. a i cm i c reserves the r i gh t to change s p e c i f i c a t i on s w i t hou t p r i o r no t i c e 4 timing diagram detailed description the ICM8010 is a micropower 1.2v single supply 10-bit 750 ksps sar architecture adc. it operates on a 0.9v to 1.32v single supply and consumes about 500 a supply current when operating on a 12mhz external clock. the output throughput rate is a maximum of 750 ksps when the dclk is running at at the maximum frequency of 12mhz. the adc is composed of a high performance capacitive dac and a comparator along with sar control logic and resistor string segment. the reference input drives the resistor string directly and has an input resistance of around 8.5 k . the ICM8010 comes complete with a high performance cmos sample and hold amplifier made up by the capacitive dac. there is shutdown capability which is active between conversions when csb is high. the converter will shut down to under 50 a of supply current. applications information the ICM8010 has a single ended analog input which can swing from gnd to vdd. the reference input has a range from gnd to vdd and can be tied to vdd for largest input range. the ICM8010 uses the dclk as the external clock and this controls all the transfer of information to and from the adc. one complete conversion cycle of the ICM8010 will take 16 clock cycles. as csb is pulled low the adc powers up and initiates a sampling/conversion cycle. data is clocked out msb first on the falling edge of the dclk input. the analog input is sampled on the first four clock pulses and then conversion process begins. the dout is available from the falling edge of the 5 th dclk pulse msb first and the lsb is available on the falling edge of the 14 th dclk pulse. since there is some propagation delay the dout should be sampled on the rising edge of the following clock pulse.
ic microsystems ic mic tm ic microsystems ic mic tm rev. a i cm i c reserves the r i gh t to c ha package information 8 lead ts sop standard package 1.2v , 750 k sps, 10b it ha nge s p e c i f i c a t i on s w i t hou t p r i o r no t i c e package information sop standard package icm 8010 it sar adc 5
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